ASTM Proposes Test Method for Dirt Pick-Up Resistance of Architectural Paints & Stains
- Aug 27, 2012
A proposed new ASTM International test method will combine existing in-house methods for dirt pick-up resistance for architectural paints and stains in an effort to standardize testing for dirt repellency throughout the industry.
The proposed standard, ASTM WK38233, Test Method for Dirt Pick-Up Resistance for the Films of Architectural Paints and Stains, is currently being developed by Subcommittee D01.42 on Architectural Coatings, part of ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications.
According to Amanda Andrews, chemist, Wacker Chemical Corp., and a D01.42 member, the proposed standard will focus on:
Standardizing a dirt composition;
How to apply dirt;
The removal of dirt; and
A rating technique for an exterior coated substrate compared to many years of outdoor exposure.
Andrews notes that Primary users of ASTM WK38233, once approved, will be coating suppliers and manufacturers.
Andrews invites all interested parties to participate in the ongoing development of ASTM WK38233. "We are particularly interested in participation from those who already have in-house dirt pick up test methods with formulated dirt," says Andrews. "We are also looking for participation from anyone who has interest in appropriate accelerated methods such as artificial UV and water conditioning."
In addition to its work on ASTM WK38233, D01.42 is currently working on a revision to ASTM D4446, Test Method for Anti-Swelling Effectiveness of Water-Repellent Formulations and Differential Swelling of Untreated Wood When Exposed to Liquid Water Environments, as well as another proposed new standard, ASTM WK32143, Test Method for Visual Assessment of Water Beading on Horizontal Coatings.
About ASTM International
ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.
Source: ASTM International
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