Henry 203 Cold-Ap roof and lap adhesive is a premium, brush or squeegee grade, waterproof adhesive made from asphalt, solvents and organic fibers. As a replacement for hot asphalt in built-up roofing (BUR)applications, Henry 203 Cold-Ap roof and lap adhesive is designed for bonding layers of asphalt coated base sheets. It can also be used to bond selvedge laps on composition and 90 lbs. asphalt roll roofing. • Use to bond layers of conventional, BUR, SBS base and cap sheets (not APP), seal laps and seams, embed polyester fabric, gravel, granule • Replaces hot asphalt in BUR • Provides greater cold-weather flexibility • Allows longer working time • Not recommended for saturated felt • Not for use over solvent-sensitive insulation
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