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PR142 will increase the bonding of polysulfide compounds to a variety of bases when applied correctly. Used as a product to boost adhesion, PR142 is particularly suited for use with the application of sealants on aircraft windshields where surface crazing may be an issue. PR142 is a one-part compound and should be applied by first using an appropriate solvent and a new lint-free cloth or brush. At room temperature, PR142 dries in about 30 minutes.