According to Neal Rogers, chair of D01.42 and technical services representative, Cook Composites and Polymers, WK14688 will be used by chemists and paint formulators who evaluate architectural primer systems for companies in the coatings industry. Rogers says that coatings manufacturers will find WK14688 helpful for performance evaluations of interior primers and for benchmarking against competitive products. The proposed standard will also guide manufacturers of raw materials for coatings in evaluating coatings resins and additives on stainblocking performance.

Subcommittee D01.42 invites interested parties to participate in its standards-developing activities. Rogers says that the subcommittee would be particularly interested in people who have experience with a method that employs the application of ink stains so as to allow assessment using color-measurement techniques. “Our current drafts of this method include a qualitative evaluation, such as a 1-10 rating scale, to rate how effective the coating is at blocking each stain,” says Rogers. “If practical, we wish to make the method more quantitative in nature, with spectrophotometer measurements to quantify the appearance effects of stains bleeding through the coating.”