Escor AT 320 Acid terpolymer ExxonMobil Chemical Acrylics/ Acrylates SEALANT ADHESIVE Acid Terpolymer for Adhesive and Polymer Modification Applications ESCOR AT 320 provides excellent adhesion to a variety of substrates and other components, such as aluminum foil, polyolefins, polycarbonate, PET, etc. Engineering thermoplastic modifier Heat activated seals Adhesive for polyolefins to metals or polar polymers Reinforced rubber hoses Acid terpolymer for adhesive and polymer modification applications. Provides very good adhesion to a variety of substrates and other components, such as aluminum foil, polyolefins, polycarbonate, PET, etc.