PR-188 Universal Sealant Adhesion Promoter
PPG PR-188 is a sealant adhesion promoter suitable for use with both PRC® and PRO-SEAL™ brand sealants. It enhances adhesion of polysulfide and PPG PERMAPOL® polythioether sealants to standard aerospace substrates. This product is fully qualified to AMS 3100 Class 2 specification and is applied by brush or clean gauze. It has zero VOC's as currently defined by U.S. environemtal regulations.
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