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

 

Download our free eBook on Fire Resistive Coating sponsored by Shield Industries Inc.

D+D 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.

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

Determine Specification Compliance:
• Surface Preparation
• Moisture Content
• Paint Materials & Application
• Aesthetics
Contact: Kevin Brown,
336-386-4000


Graco Inc.
Eco-Friendly Surface Prep

• Blast with 92% less dust
• Use less media
• Less containment & disposal costs
Graco® EcoQuip® Vapor Abrasive® Blast Equipment Learn more


VP Marketing LLC
Concrete Coating & Seamless Flooring Advisor

• Selecting the Right System
• Marketing Valued Products
• Preventing Problems
Coatings*Mortars*Terrazzo
tmurphy@vpmarketingllc.com


Keim Mineral Coatings
Color/Protection for Concrete that Won’t Peel

Concretal® Stains & Finishes penetrate, forming permanent chemical bonds within that can never peel. And mineral pigments don't fade-no matter how harsh the exposure.


PPG Pittsburgh Paints
Wonder-Pure

Our professional-quality, zero-VOC* paint provides outstanding durability, ease of application, and good hide and coverage. Its low odor allows painters and maintenance professionals to paint in occupied spaces with little disruption. Its anti-microbial properties resist mold and mildew stains on the paint film.


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


Seymour Midwest
Coating Application Tools & Supplies

Visit our “Where to Buy” site to find a local paint or tool supplier near you. Click here for a chance to win $500 of Tools & Supplies. 1(844)739-6687 Sales@SeymourMidwest.com

 
 
 

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 2012-2016, Technology Publishing Co., All rights reserved