Durability + Design
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

Paint BidTracker


Problem Solving Forum

| More

PSF Archive


Question Dates Displayed
How can you determine the moisture content of a concrete block (CMU) wall, and how can you judge when the moisture level is sufficiently low to paint? 1/8 to 1/12/2018
Do you need to wait for the mortar to cure before repainting a brick surface after repointing and power-tool cleaning to remove loosely adhered coating material from a previous paint job? If so, how long, and is there a way to judge when it is safe? 1/2 to 1/5/2018
Theoretically, how many LEED credits can be acquired for a newly constructed building through the use of coatings and related technologies, such as diamond-polished concrete? 12/18 to 12/22/2017
On a parking deck with harsh exposure conditions—from road salts, frequent wetting, and freeze-thaw cycles, to some exterior weathering—what generic type of film-forming coating works best and why? 12/11 to 12/15/2017
Do you need to wait for the mortar to cure before repainting a brick surface after repointing and power-tool cleaning? If so, how long, and how do you judge when it is safe? 12/7 to 12/13/2017
What is the best way to remove graffiti from the surface of historic stone masonry on a church while preserving the appearance properties of the substrate? 12/4 to 12/8/2017
As a facility owner, how can I justify the cost of quality control measures, such as third-party inspection, to upper management in my company? 11/27 to 12/2/2017
Do I need to pay attention to the permeability of the coating when specifying coatings for the exteriors of CMU walls? 11/20 to 11/24/2017
How much detail should be included in a specification for the surface preparation and painting of a parking garage exterior that includes tilt-up and structural concrete substrates? 11/13 to 11/17/2017
What is the clearest way to specify the degree of smoothness that you want to be achieved by surface preparation on an exterior wood substrate that is covered with deteriorated, uneven, and built-up layers of paint? 11/6 to 11/10/2017
I've seen claims of extreme durability for a new concrete floor coating material exposed to heavy foot traffic. Is there a quick test to determine the validity of these claims? 10/30 to 11/3/2017
What is the best method for removing a day-glo orange spray graffiti from a brick wall? 10/23 to 10/27/2017
What environmental and safety precautions need to be taken when removing lead-based paint from the brick on a commercial building adjacent to the sidewalk in a dense urban business district when the removal method is chemical stripping followed by water blasting? 10/16 to 10/20/2017
What is the best combination of metal (for instance, steel or aluminum) and coatings for creating bright colors on public art and sculpture, considering durability, initial cost, maintenance burden, gloss, color retention and resistance to vandalism. 10/9 to 10/13/2017
What are the performance distinctions among various types of intumescent coatings? More specifically, the differences between water-based, solvent-based, epoxies and methacrylates? 10/12 to 10/12/2017
What is the best way to judge the effectiveness of competing products offered as liquid-applied air barriers on concrete block, in terms of both durability and air barrier properties? 10/2 to 10/6/2017
Can you provide recommendations on ways to make sure an acid stain can be successfully applied to an existing horizontal concrete surface? 9/25 to 9/29/2017
What should be considered in replacing a wooden deck with one made of concrete, in terms of the options for appearance, color, cost? 9/18 to 9/22/2017
How can I determine if my hospital building in Philadelphia can benefit financially from installation of a reflective roof coating on top of the current black roofing substrate on a flat surface? 9/11 to 9/15/2017
What are the pros and cons of acid-staining a concrete floor? 9/14 to 9/14/2017
How do I deal with the small cracks and fractures that occur along the edges and corners of the stone imprints in some of my stamped concrete work? 9/5 to 9/8/2017
Can fluoropolymer coatings that are still very glossy be overcoated (if, for example, the topcoat is losing color or the color needs to be changed)? If so, what type of coating can be used, and what surface preparation is required? 8/28 to 9/1/2017
How can it be determined if moisture within a CMU wall is causing repeated coating failure? If so, can the source of moisture entry be accurately identified for correction? 8/21 to 8/25/2017
How do you keep sealants in control joints from cracking or separating from the substrate? 8/14 to 8/18/2017
What types of measures can be taken on or around metal pipes or columns that penetrate concrete or asphalt paving to reduce corrosion at the interface? 8/7 to 8/11/2017
Specifications often state that glossy surfaces must be dulled before overcoating. What are some methods for doing this, especially when sanding isn’t feasible? 8/10 to 8/10/2017
When is it necessary to install sealant between the base of building walls and concrete sidewalks or pavement to prevent moisture from wicking up the wall? How does the climate affect this decision? 7/31 to 8/4/2017
How many times can a building be repainted before the paint becomes too thick to perform properly? 7/24 to 7/28/2017
In a northern climate with extreme winters, is it reasonable to consider retrofitting an air barrier to a multi-unit brick apartment building? What sort of installation strategy would be most beneficial? 7/17 to 7/21/2017
What is the effect on the permeability of a coating when you add additional coats, either at the time of the original painting or as a maintenance activity? 7/7 to 7/14/2017
What generic types of coatings work best as liquid-applied air barriers, considering both cost and effectiveness, and what should be the dry film thickness of this system? 7/5 to 7/7/2017
What is the best way to assure compliance with specified dry film coating thickness requirements on vertical concrete? 6/26 to 6/30/2017
In what types of climates and/or environments is the use of a vapor-impermeable air/moisture barrier recommended as opposed to a vapor-permeable system? Are there guidelines or standards that can help determine this? 6/19 to 6/23/2017
What type of material should I use to achieve bright, bold colors that will last on a concrete floor with heavy foot traffic? 6/12 to 6/16/2017
In what circumstances is third-party inspection justified on commercial coating work? 6/5 to 6/9/2017
I am the facility manager for a new amusement park that will operate year-round in a hot, humid environment. Some critical structural steel in the heart of the park needs to be protected from corrosion and at the same time to retain very good appearance properties for as long as possible, since maintenance painting is disruptive. What coating system should I select to achieve the longest useful life, given that cost is a secondary consideration, and how long will this system look good while providing corrosion protection? 5/30 to 6/2/2017
What kind of surface preparation prior to coating will be effective and at the same time economical for the aluminum window frames on a large commercial office building? The aluminum was coated originally with a baked-on fluoropolymer which has lost most of its gloss. Maintenance recoating will be with an air-dry fluoropolymer. 5/22 to 5/26/2017
What coating or lining system, including surface preparation, should be used on an in-ground swimming pool constructed of galvanized steel in a northern climate? 5/15 to 5/19/2017
What is the best method of testing for moisture content in concrete masonry unit (CMU) walls prior to application of coatings? 5/8 to 5/12/2017
What criteria of selection should be used in deciding between a liquid-applied and a sheet-applied air barrier? 5/1 to 5/5/2017
How can you determine if a concrete substrate is in suitable condition for application of an acid stain? 4/24 to 4/28/2017
I’ve heard about using crystalline admixture or crystalline materials on top of concrete to fill voids and make the substrate less permeable. When is this desirable, and what is the best way to use these materials? 4/17 to 4/21/2017
What kinds and sources of data are available to support the use of antimicrobial agents in coatings for hospital substrates? 4/12 to 4/19/2017
When a specification calls for removing only loose coating from a masonry substrate, what methods are effective without damaging the intact coating that is left on the surface? 4/7 to 4/14/2017
When coating an aged concrete floor, how should one determine the correct sequence of surface preparation among the options of pressure washing and grinding or other concrete removal and roughening methods? 4/3 to 4/7/2017
What smartphone apps or online tools do you find useful in your job? How do they work, and how do they help? 3/27 to 3/31/2017
What kind of coating system provides the strongest resistance to staining from hot tires on garage floors and parking decks? 3/19 to 3/25/2017
How do you determine the best type of staining to impart color and seal on a 30 to 40-year-old brick building being restored with some brick-faced additions? 3/13 to 3/17/2017
What are the most important recommendations for ensuring success in field application of reflective roof coatings to aging single-ply roofs? Do these recommendations vary depending on whether the roof is EPDM, TPO, PVC, or some other type of substrate? 3/8 to 3/15/2017
What is best way to remedy over-thickness of a topcoat after it has dried and cured? 3/5 to 3/11/2017
How do you assess vertical concrete surface pH after surface preparation of existing concrete? 2/26 to 3/4/2017
What is the best way to prevent tropical hardwood deck lumber like ironwood from developing a gray patina in sunlight? 2/20 to 2/25/2017
Can lightweight block (CMU) be successfully coated to prevent water intrusion, or is it best to build with standard weight? 2/13 to 2/17/2017
What type of material should I use to achieve bright, bold colors on a concrete floor with heavy foot traffic? 2/8 to 2/15/2017
How can you determine the moisture content of a concrete block (CMU) wall, and how can you judge when the moisture level is low enough to paint? 2/5 to 2/11/2017
What is the best way for me to assure I’m getting what I want when I specify a decorative finish such as glazing or gilding? 1/29 to 2/4/2017
How do you prepare an oil-stained, bare concrete floor for coating? 1/23 to 1/27/2017
What are the pros and cons of using shotblasting to remove a coating system from a concrete floor? 1/23 to 1/27/2017
What kind of initial treatment is the best defense against graffiti for rough-surfaced concrete block (CMU)? 1/16 to 1/20/2017
Where there is likely to be ponding water, what generic type of reflective roof coating will work best and why? 1/8 to 1/14/2017
Considering cost, productivity, and thoroughness, what is the best way to remove paint from cement blocks (CMUs)? 1/2 to 1/6/2017
Do you need to wait for the mortar to cure before repainting a brick surface after repointing and power-tool cleaning? If so, how long, and how do you judge when it is safe? 12/18 to 12/23/2016
What is the clearest way to specify the degree of smoothness required by surface preparation on an exterior wood substrate covered with deteriorated and uneven layers of paint? 12/11 to 12/17/2016
In what type of environment is the use of a vapor-impermeable air/moisture barrier recommended? Are there guidelines or standards to help determine this? 12/4 to 12/10/2016
What is the Cold Wall Effect? Can it cause premature coating failure on a building and, if so, how do I prevent it? 11/28 to 12/2/2016
Theoretically, how many LEED credits can be acquired for a newly constructed building through the use of coatings and related technologies? 11/20 to 11/25/2016
What is the best way to remove graffiti from the surface of historic stone masonry on a church while preserving the appearance properties of the substrate? 11/13 to 11/19/2016
What would be an optimal coating system, in terms of durability and productivity in field painting, for exposed structural steel on a stadium in a damp, cold environment? 11/6 to 11/12/2016
Is there a quick way to determine the validity of a claim of “extreme durability” for a new concrete floor coating material exposed to heavy foot traffic? 10/30 to 11/4/2016
What is the best way to assure compliance with specified dry film coating thickness requirements on vertical concrete? 10/23 to 10/29/2016
Is it sufficient to specify simply that paint should be applied "according to the manufacturer’s instructions?" If not, what kind of detail should be included? 10/16 to 10/22/2016
What kind of treatment is the best defense against graffiti for rough-surfaced concrete block (CMU)? 10/9 to 10/15/2016
What are the alternatives for removing mildew from uncoated concrete block exteriors before coating? 10/2 to 10/8/2016
What are the most important recommendations for successful field application of reflective coatings to aging single-ply roofs? 9/26 to 9/30/2016
What is the best way to prepare a horizontal concrete surface for successful application of an acid stain? 9/16 to 9/23/2016
When we use field splice plate connections on structural steel projects, how do we prevent rust and rust staining at bolt heads and at the splice plate/steel interface? 9/11 to 9/17/2016
When performing maintenance surveys on structures that require coatings under insulation, how do you inspect the condition of the coatings? 9/4 to 9/10/2016
What is the best method for removing fluorescent orange spray graffiti from a brick wall? 8/28 to 9/3/2016
In what circumstances is third-party inspection recommended for commercial coating work? 8/22 to 8/26/2016
What is the best way to ensure successful application of an acid stain to an existing horizontal concrete surface? 8/14 to 8/20/2016
On a parking deck with harsh exposures—to road salt, frequent wetting, freeze-thaw cycles, and exterior weathering—what generic coating type works best, and why? 8/7 to 8/13/2016
How do you assess salts and other non-visible contaminants on concrete surfaces? 7/31 to 8/6/2016
What is the best way to judge the effectiveness and durability of competing liquid-applied air barriers on concrete block? 7/24 to 7/30/2016
I’m told that bond breakers and form release agents must be completely removed from newly placed concrete before coating. How is this best accomplished and verified? 7/17 to 7/23/2016
Are there any industry standards, technical references, guidelines etc. that provide direction to an owner as to when a low-slope roof membrane (single ply, mechanically attached, white thermoplastic) should or MUST be replaced? 7/10 to 7/15/2016
What environmental and safety precautions must be taken when using chemical stripping and water blasting to remove lead-based paint from a commercial building exterior in an urban business district? 6/26 to 7/2/2016
What is the best combination of metal and coatings for creating bright colors on public art and sculpture, keeping in mind durability, cost, maintenance, and gloss and color retention? 6/19 to 6/25/2016
What type of material should I use to achieve bright, bold colors on a concrete floor that gets heavy foot traffic? 6/13 to 6/17/2016
What is the best method of testing for moisture content in concrete masonry unit (CMU) walls before application of coatings? 6/5 to 6/11/2016
Is there a definitive relationship between mechanical properties of coatings (such as elongation and tensile strength) and crack-bridging capability? 5/29 to 6/4/2016
How can I tell if my apartment building’s roof is suitable for installing a vegetative roof? 5/21 to 5/27/2016
What should be considered when deciding between liquid-applied and a sheet-applied air barrier? 5/15 to 5/21/2016
What should be considered in replacing a wooden deck with one made of concrete, in terms of the options for appearance, color, cost? 5/6 to 5/13/2016
How do I permanently get rid of efflorescence on clay brick? 5/2 to 5/8/2016
What causes concrete “dusting,” and is there any way to prevent or remove it? 4/25 to 5/1/2016
What are the pros and cons of acid-staining a concrete floor? 4/17 to 4/23/2016
What’s the best way to determine if a cementitious-based mortar used to repair exterior concrete is ready to be coated? 4/10 to 4/16/2016
Under what circumstances is third-party inspection justified on commercial coating work? 4/4 to 4/10/2016
I need to remove coatings from masonry on a historic-preservation project. What are my options for doing so without damaging the mortar joints? 3/27 to 4/2/2016
We’re converting a grocery store into a motorcycle dealership. Should we polish the concrete floor or coat it? The concrete seems in fair shape, from what we can see under the dried mastic where the old vinyl tiles have been removed. 3/21 to 3/27/2016
I need to coat a bare concrete warehouse floor that has visible oil stains. What are my options for cleaning the concrete before coating it? 3/14 to 3/20/2016
What’s the best way to protect a masonry wall from freeze/thaw cycling? 3/7 to 3/13/2016
Do the balcony floor slabs on the high-rise seaside condo I’m working on in Florida really need cathodic protection? 2/29 to 3/6/2016
What is the difference between a damp-surface tolerant and a wet-surface tolerant paint? How can we determine when a surface is damp or wet? 2/22 to 2/28/2016
What is the best way to protect porous masonry from graffiti? 2/15 to 2/21/2016
How do I clean off mortar smears that were allowed to cure for six months on a new architectural block building? 2/8 to 2/12/2016
What is the best way to protect an exposed concrete foundation? 2/1 to 2/5/2016
During a week of heavy rain, we painted the interior of a heated concrete building. The paint blistered badly a week later on the walls with an outside exposure. What’s the best way to remove the coating, prepare the surface, and recoat to prevent future blistering? 1/24 to 1/30/2016
What errors are most likely to occur when measuring dry film thickness on steel, and how can I avoid them? 1/18 to 1/24/2016
How do I deal with the small cracks and fractures that occur along the edges and corners of the stone imprints in some of my stamped concrete work? 1/11 to 1/15/2016
Can fluoropolymer coatings that are still very glossy be overcoated (if, for example, the topcoat is losing color or the color needs to be changed)? If so, what type of coating can be used, and what surface preparation is required? 12/18 to 12/25/2015
We are trying to remove an old, coal tar-based, rubberized waterproofing membrane from a concrete substrate. In some areas it pulls off and in others the adhesion is tenacious. What are some suggestions on increasing the efficiency of this process? 12/11 to 12/18/2015
Where are errors most likely to occur when measuring dry film thickness on steel, and how can they be avoided? 12/4 to 12/11/2015
What tests and criteria can a coatings user specify to assure consistent lot-to-lot performance of supplied coatings? 11/25 to 12/2/2015
For coatings with a high-solids content (95 percent or more), what kinds of defects, such as holidays or micropores, are possible or likely to occur in the applied film? How can these be prevented or remedied? 11/23 to 11/28/2015
How can I determine when concrete has cured sufficiently to be coated, besides waiting the 28 days typically specified? 11/15 to 11/21/2015
Where would you use epoxy and cementitious intumescent coatings? 11/8 to 11/14/2015
How do you properly coat welded joints? 11/2 to 11/7/2015
What are some ways to improve transfer efficiency of airless spray application? 10/25 to 10/31/2015
How does the concave or convex curvature of a surface affect the dry film thickness reading? 10/16 to 10/23/2015
How do you repair polyurea coatings? 10/9 to 10/16/2015
What is the best way to repair localized coating breakdown on steel? 10/2 to 10/9/2015
What causes blistering/crater formation in freshly applied polyurethane topcoats, and how can this be avoided? 9/25 to 10/2/2015
RH probes are commonly used in concrete floors to determine moisture content. Can they be used in CMU walls or pre-cast walls? 9/20 to 9/25/2015
What should be included in the risk assessment of a particular painting project? 9/11 to 9/18/2015
How can it be determined if moisture within a CMU wall is causing repeated coating failure? If so, can the source of moisture entry be accurately identified for correction? 9/6 to 9/12/2015
Which is the most reliable technique to determine pot life of two component paints? 8/31 to 9/6/2015
How do you keep sealants in control joints from cracking or separating from the substrate? 8/23 to 8/29/2015
If the walls of single-wythe CMU with core fill insulation become saturated, can they be adequately dried out for painting? If so, how? 8/17 to 8/21/2015
What’s the best way to prevent corrosion of reinforcing bar in concrete? 8/9 to 8/14/2015
How do you strip paint from a cementitious substrate if you can’t alter the surface texture? 8/2 to 8/8/2015
How many times can a building be repainted before the paint becomes too thick to perform properly? 7/27 to 8/2/2015
What types of measures can be taken on or around metal pipes or columns that penetrate concrete or asphalt paving to reduce corrosion at the interface? 7/13 to 7/20/2015
When is it necessary to install sealant between the base of building walls and pavement to prevent moisture from wicking up the wall? How does the climate affect this decision? 7/6 to 7/12/2015
What is the optimal moisture content for masonry before painting can begin? 6/29 to 7/5/2015
What is the proper surface preparation for stainless steel before coating to resist a salt-laden atmosphere? 6/22 to 6/28/2015
What are the advantages and disadvantages of using mechanical equipment inspectors or welding inspectors, instead of certified coating inspectors, to perform coating inspection duties? 6/15 to 6/21/2015
How does a lower-metallic-content zinc-rich epoxy affect the life of a paint system? 6/8 to 6/14/2015
What pluses and minuses have you seen with using recycled-glass abrasives vs. traditional abrasives? 6/1 to 6/7/2015
When is it necessary to install sealant between the base of building walls and concrete sidewalks or pavement to prevent moisture from wicking up the wall? How does the climate affect this decision? 5/25 to 5/30/2015
How do you determine the best type of coating for repainting a block or concrete building? 5/18 to 5/24/2015
What are the performance distinctions among various types of intumescent coatings (for example, water-based, solvent-based, epoxies and methacrylates)? 5/11 to 5/17/2015
What are the most effective procedures for protecting steel and adjacent concrete? 5/3 to 5/9/2015
How many times can a building be repainted before the paint becomes too thick to perform properly? 4/27 to 5/3/2015
How pure must fresh water be for water washing or waterjetting, and how do you determine the water’s purity? 4/20 to 4/26/2015
How long after blasting can stainless steel be left before painting? If this time is exceeded, what further surface preparation is required? 4/13 to 4/19/2015
Which factors are most important in selecting coatings for new concrete? 4/6 to 4/12/2015
What must specifiers consider when selecting and using sealants and grouts to fill gaps and seal concrete structures? 3/30 to 4/3/2015
What are the criteria for selecting coatings for application during extreme (atmospheric) heat? 3/23 to 3/27/2015
How do you determine whether a lead-bearing coating can be overcoated or removed and replaced? 3/16 to 3/20/2015
How do you know when pot life has expired? Can you extend pot life and, if so, how? 3/9 to 3/13/2015
How do you adequately assess the adhesion of a newly applied coating? 3/2 to 3/6/2015
What is an acceptable level of moisture in concrete walls before painting with an acrylic system, and how should the moisture level be measured? 2/23 to 2/27/2015
Specifications often state that glossy surfaces must be dulled before overcoating. What are some methods for doing this, especially when sanding isn’t feasible? 2/16 to 2/20/2015
How should a conflict between requirements, such as film thickness, on a product data sheet and the specification be resolved? 2/9 to 2/13/2015
How can I determine the cleanliness of stainless steel for painting after blast cleaning? 2/2 to 2/6/2015
We need to paint our publicly owned lighthouse. What should I include in the specifications for this bid regarding surface preparation, coating systems, and other considerations? 1/26 to 1/30/2015
How can you determine if a concrete substrate is in suitable condition for application of an acid stain? 1/19 to 1/23/2015
When a specification calls for removing only loose coating from a masonry substrate, what methods are effective without damaging the intact coating that is left on the surface? 1/12 to 1/16/2015
What smartphone apps or online tools do you find useful in your job? How do they work, and how do they help? 1/5 to 1/9/2015
What kind of coating system provides the strongest resistance to staining from hot tires on garage floors and parking decks? 1/2 to 1/2/2015
What kind of coating system provides the strongest resistance to staining from hot tires on garage floors and parking decks? 12/22 to 12/24/2014
What is best way to remedy over-thickness of a topcoat after it has dried and cured? 12/15 to 12/22/2014
How does one determine if concrete is sound enough to receive a thick-film coating? 12/8 to 12/12/2014
When a specification requires Manufacturer X’s system “or equivalent,” what does “or equivalent” mean, and who decides what’s equivalent? 12/1 to 12/5/2014
What is the best way to prevent tropical hardwood deck lumber like ironwood from developing a gray patina in sunlight? 11/17 to 11/28/2014
Can lightweight block (CMU) be successfully coated to prevent water intrusion, or is it best to build with standard weight? 11/10 to 11/14/2014
On a parking deck with harsh exposures—to road salt, frequent wetting, freeze-thaw cycles, and exterior weathering—what generic coating type works best, and why? 11/3 to 11/7/2014
How can you determine the moisture content of a concrete block (CMU) wall, and how can you judge when the moisture level is low enough to paint? 10/27 to 10/31/2014
What is the best way for me to assure I’m getting what I want when I specify a decorative finish such as glazing or gilding? 10/20 to 10/24/2014
What is the best way to ensure successful application of an acid stain to an existing horizontal concrete surface? 10/13 to 10/17/2014
What criteria should be used in deciding between a liquid-applied and a sheet-applied air barrier? 10/6 to 10/10/2014
What is the best way to assure compliance with specified dry film coating thickness requirements on vertical concrete? 9/29 to 10/3/2014
What kind of initial treatment is the best defense against graffiti for rough-surfaced concrete block (CMU)? 9/15 to 9/19/2014
Where there is likely to be ponding water, what generic type of reflective roof coating will work best, and why? 9/8 to 9/12/2014
Considering cost, productivity, and thoroughness, what is the best way to remove paint from cement blocks (CMUs)? 9/1 to 9/5/2014
What is the clearest way to specify the degree of smoothness required by surface preparation on an exterior wood substrate covered with deteriorated and uneven layers of paint? 8/25 to 8/29/2014
In what type of environment is the use of a vapor-impermeable air/moisture barrier recommended? Are there guidelines or standards to help determine this? 8/18 to 8/22/2014
What is the Cold Wall Effect? Can it cause premature coating failure and, if so, how do I prevent it? 8/11 to 8/15/2014
Is it sufficient to specify simply that paint should be applied "according to the manufacturer’s instructions?" If not, what detail should be included? 8/4 to 8/8/2014
Theoretically, how many LEED credits can be acquired for a newly constructed building through the use of coatings and related technologies? 7/28 to 8/1/2014
What generic types of coatings work best as liquid-applied air barriers, considering both cost and effectiveness, and what should be the dry film thickness of this system? 7/21 to 7/25/2014
What is the best way to remove graffiti from the surface of historic stone masonry on a church while preserving the appearance properties of the substrate? 7/7 to 7/20/2014
What would be an optimal coating system, in terms of durability and productivity in field painting, for exposed structural steel on a stadium in a damp, cold environment? 6/30 to 7/4/2014
How do you repair delaminated areas of an elastomeric polyurea when the majority of the coating system is intact? 6/23 to 6/27/2014
I’ve seen claims of extreme durability for a new concrete floor coating material exposed to heavy foot traffic. Is there a quick test to determine the validity of these claims? 6/16 to 6/20/2014
What kind of surface preparation is most effective and economical before recoating aluminum window frames on a large office building? The original baked-on fluoropolymer has lost most of its gloss. 6/9 to 6/13/2014
I am the facility manager for a new amusement park that will operate year-round in a hot, humid environment. What protective coating system should I select to achieve the longest useful life (cost is a secondary consideration), and what performance can I expect? 6/2 to 6/6/2014
What are the alternatives for removing mildew from uncoated concrete block exteriors before coating? 5/26 to 5/30/2014
What are the most important recommendations for successful field application of reflective coatings to aging single-ply roofs? 5/19 to 5/23/2014
What is the best way to prepare a horizontal concrete surface for successful application of an acid stain? 5/12 to 5/16/2014
What is the best method for removing fluorescent orange spray graffiti from a brick wall? 5/5 to 5/9/2014
In what circumstances is third-party inspection recommended for commercial coating work? 4/28 to 5/2/2014
What is the best way to judge the effectiveness and durability of competing liquid-applied air barriers on concrete block? 4/21 to 4/25/2014
What environmental and safety precautions must be taken when using chemical stripping and water blasting to remove lead-based paint from a commercial building exterior in an urban business district? 4/14 to 4/18/2014
What is the best combination of metal and coatings for creating bright colors on public art and sculpture, keeping in mind durability, cost, maintenance, and gloss and color retention? 4/7 to 4/11/2014
What type of material should I use to achieve bright, bold colors on a concrete floor that gets heavy foot traffic? 3/31 to 4/4/2014
What is the best method of testing for moisture content in concrete masonry unit (CMU) walls before application of coatings? 3/24 to 3/28/2014
What should be considered in replacing a wooden deck with one made of concrete, in terms of the options for appearance, color and cost? 3/17 to 3/21/2014
What selection criteria should be used to decide between a liquid-applied and a sheet-applied air barrier? 3/10 to 3/14/2014
How can I determine if my urban hospital building would benefit financially by installing a reflective roof coating on top of the current flat black roofing substrate? 3/3 to 3/7/2014
How do I get permanently get rid of efflorescence on clay brick? 2/24 to 2/28/2014
What causes concrete “dusting,” and is there any way to prevent or remove it? 2/17 to 2/21/2014
What are the pros and cons of acid-staining a concrete floor? 2/10 to 2/14/2014
I need to remove coatings from masonry on a historic-preservation project. What are my options for doing so without damaging the mortar joints? 2/3 to 2/7/2014
We’re converting a grocery store to a motorcycle dealership. Should we polish the concrete floor or coat it? The concrete seems in fair shape, from what we can see under the dried mastic where the old vinyl tiles have been removed. 1/27 to 1/31/2014
How can I tell if my apartment building’s roof is suitable for installing a vegetative roof? 1/20 to 1/24/2014
What’s the best way to protect a masonry wall from freeze/thaw cycling? 1/13 to 1/17/2014
What’s the best way to protect porous masonry from graffiti? 1/2 to 1/12/2014
Do the balcony floor slabs on the high-rise seaside condo I’m working on in Florida really need cathodic protection? 12/16 to 12/23/2013
How do I clean off mortar smears that were allowed to cure for six months on a new architectural block building? 12/9 to 12/13/2013
What is the best way to protect an exposed concrete foundation? 11/25 to 12/6/2013
What errors are most likely to occur when measuring dry film thickness on steel, and how can I avoid them? 11/18 to 11/22/2013
How do I deal with the small cracks and fractures that occur along the edges and corners of the stone imprints in some of my stamped concrete work? 11/4 to 11/8/2013
Can fluoropolymer coatings that are still very glossy be overcoated (if, for example, the topcoat is losing color or the color needs to be changed)? If so, what type of coating can be used, and what surface preparation is required? 10/28 to 11/1/2013
How do I prepare an oil-stained, bare concrete floor for coating? 10/21 to 10/25/2013
How can it be determined if moisture within a CMU wall is causing repeated coating failure? If so, can the source of moisture entry be accurately identified for correction? 12/24 to 1/6/2013
RH probes are commonly used in concrete floors to determine moisture content. Can they be used in CMU walls or pre-cast walls? 12/17 to 12/23/2012
If the walls of single-wythe CMU with core fill insulation become saturated, can they be adequately dried out for painting? If so, how? 12/10 to 12/16/2012
What are the advantages and disadvantages of using mechanical equipment inspectors or welding inspectors, instead of certified coating inspectors, to perform coating inspection duties? 12/3 to 12/9/2012
How do you keep sealants in control joints from cracking or separating from the substrate? 11/26 to 12/2/2012
How many times can a building be repainted before the paint becomes too thick to perform properly? 11/17 to 11/25/2012
How do you strip paint from a cementitious substrate if you can’t alter the surface texture? 11/12 to 11/18/2012
Can efflorescence be removed from integrally colored CMU without damaging the appearance? How? 11/5 to 11/11/2012
What types of measures can be taken on or around metal pipes or columns that penetrate concrete or asphalt paving to reduce corrosion at the interface? 10/29 to 11/2/2012
When is it necessary to install sealant between the base of building walls and concrete sidewalks or pavement to prevent moisture from wicking up the wall? How does the climate affect this decision? 10/22 to 10/28/2012
What is the optimal moisture content for masonry before painting can begin? 10/15 to 10/21/2012
How do you determine the best type of paint to use when repainting a block or concrete building? 10/8 to 10/14/2012
How many times can a building be repainted before the paint becomes too thick to perform properly? 10/1 to 10/7/2012
When a specification calls for removal of only loose coating rather than complete coating removal from a masonry substrate, what surface preparation methods are most likely to work without damaging the intact coating that is left on the surface? 5/23 to 5/29/2011
How can you determine if a concrete substrate is in a suitable condition for application of an acid stain? 5/16 to 5/22/2011
How is it possible to determine if concrete is sound enough to receive a thick-film coating? 5/9 to 5/15/2011
What is the definition of a hybrid coating, and what are the performance properties of hybrid coatings? 5/2 to 5/8/2011
What kind of coating system provides the strongest resistance to staining from hot tires on garage floors and parking decks? 4/25 to 5/1/2011
What is the best way to prevent tropical hardwood deck lumber like ironwood from developing a gray patina in sunlight? 4/18 to 4/24/2011
Can light-weight block (CMU) be successfully coated to prevent water intrusion, or is it best to build with standard weight? 4/11 to 4/17/2011
On a parking deck with harsh exposure conditions--to road salts, frequent wetting, freeze-thaw cycles, and some exterior weathering—what generic type of film-forming coating works best and why? 4/4 to 4/10/2011
In a northern climate with extreme winters, is it reasonable to consider retrofitting an air barrier to a multi-unit brick apartment building? What sort of installation strategy would be most beneficial? 3/28 to 4/3/2011
How can you determine the moisture content of a concrete block (CMU) wall, and how can you judge when the moisture level is sufficiently low to paint? 3/21 to 3/27/2011
What is the best way for me to assure I'm getting what I want when I specify a decorative finish such as glazing or gilding? 3/14 to 3/20/2011
What is the effect on the permeability of a coating when you add additional coats, either at the time of the original painting or as a maintenance activity? 3/7 to 3/13/2011
Do you need to wait for the mortar to cure before repainting a brick surface after repointing and power-tool cleaning to remove loosely adhered coating material from a previous paint job? If so, how long, and is there a way to judge when it is safe? 2/28 to 3/6/2011
Theoretically, how many LEED credits can be acquired for a newly constructed building through the use of coatings and related technologies, such as diamond-polished concrete? 2/21 to 2/27/2011
What generic types of coatings work best as liquid-applied air barriers, considering both cost and effectiveness, and what should be the dry film thickness of this system? 2/14 to 2/20/2011
What is the best way to remove graffiti from the surface of historic stone masonry on a church while preserving the appearance properties of the substrate? 2/7 to 2/13/2011
What is the best way to assure compliance with specified dry film coating thickness requirements on vertical concrete? 1/31 to 2/6/2011
As a facility owner, how can I justify the cost of quality control measures, such as third-party inspection, to upper management in my company? 1/24 to 1/30/2011
What kind of initial treatment is the best defense against graffiti for rough-surfaced concrete block (CMU)? 1/17 to 1/23/2011
Where there is likely to be ponding water, what generic type of reflective roof coating will work best and why? 1/10 to 1/16/2011
Considering cost, productivity, and thoroughness, what is the best way to remove paint from cement blocks (CMUs)? 1/3 to 1/9/2011
Do I need to pay attention to the permeability of the coating when specifying coatings for the exteriors of CMU walls? 12/21 to 12/31/2010
How much detail should be included in a specification for the surface preparation and painting of a parking garage exterior that includes tilt-up and structural concrete substrates? 12/13 to 12/19/2010
In what types of climates and/or environments is the use of a vapor-impermeable air/moisture barrier recommended as opposed to a vapor-permeable system? Are there guidelines or standards that can help determine this? 12/6 to 12/12/2010
What is the clearest way to specify the degree of smoothness that you want to be achieved by surface preparation on an exterior wood substrate that is covered with deteriorated, uneven, and built-up layers of paint? 11/29 to 12/5/2010
What would be an optimal coating system, in terms of both durability and productivity in field painting, for exposed structural steel on the exterior of a stadium built on the seacoast in a damp, cold environment? 11/22 to 11/28/2010
I've seen claims of extreme durability for a new concrete floor coating material exposed to heavy foot traffic. Is there a quick test to determine the validity of these claims? 11/15 to 11/21/2010
What is the best method for removing a day-glo orange spray graffiti from a brick wall? 11/8 to 11/14/2010
What environmental and safety precautions need to be taken when removing lead-based paint from the brick on a commercial building adjacent to the sidewalk in a dense urban business district when the removal method is chemical stripping followed by water blasting? 11/1 to 11/7/2010
What is the best combination of metal (for instance, steel or aluminum) and coatings for creating bright colors on public art and sculpture, considering durability, initial cost, maintenance burden, resistance to vandalism, and gloss and color retention.

Submitted by William Dikis
10/25 to 10/31/2010
What are the most important recommendations for ensuring success in field application of reflective roof coatings to aging single-ply roofs? Do these recommendations vary depending on whether the roof is EPDM, TPO, PVC, or some other type of substrate? 10/18 to 10/31/2010
What type of material should I use to achieve bright, bold colors on a concrete floor with heavy foot traffic? 10/11 to 10/17/2010
In what circumstances is third-party inspection is justified on commercial coating work? 10/4 to 10/10/2010
I am the facility manager for a new amusement park that will operate year-round in a hot, humid environment. Some critical structural steel in the heart of the park needs to be protected from corrosion and at the same time to retain very good appearance properties for as long as possible, since maintenance painting is disruptive. What coating system should I select to achieve the longest useful life, given that cost is a secondary consideration, and how long will this system look good while providing corrosion protection? 9/27 to 10/3/2010
What is the best way to judge the effectiveness of competing products offered as liquid-applied air barriers on concrete block, in terms of both durability and air barrier properties? 9/20 to 9/26/2010
What kind of surface preparation prior to coating will be effective and at the same time economical for the aluminum window frames on a large commercial office building? The aluminum was coated originally with a baked-on fluoropolymer which has lost most of its gloss. Maintenance recoating will be with an air-dry fluoropolymer. 9/14 to 9/19/2010
What coating or lining system, including surface preparation, should be used on an in-gound swimming pool constructed of galvanized steel in a northern climate? 9/7 to 9/13/2010
Can you provide recommendations on ways to make sure an acid stain can be successfully applied to an existing horizontal concrete surface? I understand that residues such as coatings, curing agents, waxes, or other materials will interfere with the stain’s reaction with the concrete, but can I find out what the substances are so I know how to remove them? 8/30 to 9/7/2010
What is the best method of testing for moisture content in concrete masonry unit (CMU) walls prior to application of coatings? 8/23 to 8/29/2010
What should be considered in replacing a wooden deck with one made of concrete, in terms of the options for appearance, color, cost? I've seen articles about stains, integral coloring, and other decorative treatments, as well as lighter-weight concrete, but it's not easy to compare and judge the options. 8/16 to 8/22/2010
What criteria of selection should be used in deciding between a liquid-applied and a sheet-applied air barrier? 8/6 to 8/13/2010
How can I determine if my hospital building in Philadelphia can benefit financially from installation of a reflective roof coating on top of the current black roofing substrate on a flat surface? 7/27 to 8/8/2010

Current PSF Question | Submit a PSF Question

Advertisements
 
PPG Paints
 
PPG PAINTS™ SPEEDHIDE® INTERIOR LATEX
 
This high-hiding, low-VOC, low-odor paint enables a space to be painted while occupied and delivers the durable product performance professionals require.
 

 
Digital Facilities Corporation
 
Manage the Building Envelope
 
FM-Pro™ is an innovative solution for the assessment and management of Roofing, Facade and Paving for building owners, asset area consultants, and product suppliers.
 

 
World of Concrete
 
WOC 2018 – Las Vegas, NV
 
Visit the WOC website for more details about the World of Concrete 2018: January 23-26; Seminars 22-26 at the Las Vegas Convention Center in Las Vegas, NV, USA.
 

 
International Roofing Expo
 
IRE 2018
 
Attend the IRE where exhibitors and education offer serious solutions, real results and opportunities to make powerful connections. Register for FREE Expo.
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@durabilityanddesign.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 

© Copyright 2012-2018, Technology Publishing Co., All rights reserved