3M Adhesion Promoter AC-1603M Adhesion Promoter AC-160 is a water-borne surface treatment that enhances adhesion of polysulfide sealants to metals or solvent-resistant coatings. DetailsAllows for faster initial adhesion build rate of polysulfide sealantWater-borne product for solvent sensitive surfacesOne component formula for simple applicationAvailable in various packaging sizes to meet a range of production needsColour – Red
