Durability + Design
 
About  |  Subscribe  |  Advertise  |  Connect 
Follow us on Twitter Like us on Facebook

 

Get your FREE e-resource: The Technology of Coatings in High-Rise Structures

Problem Solving Forum

| More

Question posted - November 17 to November 25, 2012:

How many times can a building be repainted before the paint becomes too thick to perform properly?



More items for Maintenance + Renovation


Selected Answers

From Gary Burke of Finishing Brands , Ransburg on November 28, 2012:
     It all depends on the substrate, how old the painted surfaces are, quality of coatings used, and how surface was prepared the first time around.

From Ken Johnson of Heritage Preservation on November 20, 2012:

     This would greatly depend on the type of substrate and paint used. On older masonry and concrete structures, breathability of the coatings may become a determining factor and, as coating thicknesses build up, breathability becomes less, which can lead to paint failures.

     If you see failures right down to the substrate on a masonry building, it may be time to remove the paint and start over using modern, more breathable coatings.

     On a wood structure, the problem can be similar. Older paint coatings will lose their elasticity and be subjected to cross-grain cracking. You can scrape and remove the spots where the coating has failed, but the underlying problem still exists. We have seen instances where microscopic examination of historic buildings indicates ten or more applications of paint. The coats are thick and brittle and subsequent coats fail relatively rapidly. It may be time to remove, prime and replace.

From Paul Corey of Paul J. Corey Ptg.& Dec. on November 19, 2012:
     There is no limit if correct prep and application methods are used.

Please sign in to submit your answer this question

   

Tagged categories: Coating / Film thickness


Current PSF Question | Submit a PSF Question | Full PSF Archive

Dumond Chemicals Inc.
SMART STRIP™ PRO

delivers the superior performance professionals are looking for when removing even the most difficult high-performance coatings and lead paint. This product is low VOC, low odor; biodegradable and user friendly.


Keim Mineral Coatings
Concrete Coatings penetrate, chemically bond and will never peel, blister or fade

Complete mineral silicate concrete repair and finish systems to solve concrete problems for decades long beauty and protection.


Atlas Material Testing Technology

Helping You Put Your Products To The Test

• Outdoor Accelerated
Weathering
• Laboratory Testing
Services
• Accelerated Weathering
Instruments

www.atlas-mts.com atlas.info@ametek.com


KTA-Tator, Inc. - Corporate Office
KTA Laboratory Services

Fully equipped lab to solve
the most challenging
coatings problems.
Contact:
Kevin Brown, 336-874-2651
Corporate:
1-800-245-6379 x208


Lignomat USA Ltd.
A dependable Source for Moisture Meters

Lignomat manufactures pin, pinless and in-situ probe meters for concrete and other building materials. Call 800-227-2105 to find the best moisture measuring device for your application.


Armorthane
Best Floor Coatings with Maximum Durability

Coat CONCRETE or WOOD flooring for wheel and foot traffic, chemical resistance, weather-proofing, indoors and outside. Variety of textures for beauty, resilience and safety.


AGC Chemicals
FEVE Resins Used On Joe DiMaggio Children’s Hospital Curtain Walls

Not only do LUMIFLON FEVE resin-based coatings provide added durability on metal-clad buildings, they are a leading product in the area of environmental sustainability.

 
 
 

Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

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 2012-2015, Technology Publishing Co., All rights reserved