Durability + Design

Building Performance and Aesthetics

A Product of Technology Publishing
JPCL/PaintSquare | D+D | Paint BidTracker

Subscribe to D+D Magazine

Paint and Coatings Industry News

Main News Page


ASTM Proposes Standard for Water Beading in Architectural Coatings

Wednesday, July 6, 2011

More items for Good Technical Practice

Comment | More

An ASTM International committee is in the process of developing a standard that will provide a visual rating guideline on the degree of water beading in architectural coatings, an alternative method of evaluation to using precise imaging equipment.

Water beading is an aesthetic effect sometimes recognized as a product feature by architectural coatings manufacturers who produce water-repellent wood finishes and deck stains, ASTM said.

While water beading on a coated surface can be measured through the use of a microscopic imaging system (ASTM D7334, Practice for Surface Wettability of Coatings, Substrates and Pigments by Advancing Contact Angle Measurement), the organization says it is not always critical to evaluate bead formation with this level of precision.
 
As a result, ASTM WK32143, Test Method for Visual Assessment of Water Beading on Horizontal Coatings, is being developed by Subcommittee D01.42 on Architectural Coatings, part of ASTM Committee D01 on Paint and Related Coatings, Materials and Applications.

The test described in ASTM WK32143 can be repeated after coated specimens have been submitted to intervals of aging or weathering, thereby demonstrating the persistence of the coating’s ability to bead water, the organization said.

“The proposed standard will be helpful because it provides coating formulators with a simple and standard tool to compare and optimize water-beading characteristics,” said Neal Rogers, a D01.42 member and group leader, new product development, coatings research and development, Cook Composites and Polymers. Rogers also noted that coating formulators will be the primary users of ASTM WK32143.
 
“The formulators are likely to represent manufacturers of architectural paints or paint additives,” Rogers said. “Although the proposed standard is being developed from an architectural coating point of view, rating of the visual effect of water beading could also be applied to any horizontal coating system.”
 
The organization welcomes participation in the standards development process.
 
“Specific to ASTM WK32143, it would be of interest to add the perspectives of those who manufacture additives to enhance water beading or water repellency characteristics of coatings,” Rogers added.

More information: www.astm.org

   

Tagged categories: ASTM; Deck coatings; Stains; Wood stains

Comment from Jack Blasko, (7/7/2011, 9:59 AM)

Is it possible to see a copy of the proposed method in order to review it and submit specific comments?


Comment Join the Conversation:

Sign in to our community to add your comments.

SSPC: The Society for Protective Coatings
http://www.sspc.org/

Join SSPC and Enhance
Your Career !


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

Independent assessment of coating failures – in the field and laboratory.
Contact:
Kevin Brown, 336-874-2651
Corporate:
1-800-245-6379 x208


Arroworthy
ArroWorthy's Handcrafted Professional Brushes

One Dip of paint with our handcrafted semi-oval Rembrandt brush, you'll see why ArroWorthy makes a professional brush of unrivaled quality and performance.


Coatings For Industry, Inc.
For Tough Environments,
The Toughest Protection

A workplace exposed to vehicle traffic, fuel, and other harsh chemicals needs a floor coating that stands up to daily abuse. Wearcoat 100 high-build polyurethane provides superior protection.


Westcoat
Bringing New Colors To Concrete Surfaces

Liven up your concrete surfaces with Westcoat's newest color choices. Introducing a myriad of Fast Stain, Liquid Dazzle, and Texture-Crete Interior colors.


VaproShield
We’re Pushing the Envelope

Forget the trade-offs on your next project, make your building envelope breathable and air tight. Use our innovative WRB and air barrier membranes.


No-Burn, Inc.
Designed to passively protect

Same trusted brand, new code compliant uses. We’ve answered the demand for better passive fire protection. Use coatings that meet the 2012 iCodes

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker JPCL Europe

 
EXPLORE D+D:      Interact   |   Blogs   |   Resources   |   Buying Guides   |   Webinars   |   White Papers   |   Classifieds
GET D+D:      Subscribe   |   Advertising Media Kit
KNOW D+D:      About D+D   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2010-2014, Technology Publishing, Co., All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com