Super ester A-18 Rosin ester Arakawa Chemical Tackifier >> Rosin ester >> Specialties ADHESIVE >> Hot-melt ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) SUPER ESTER A-18 Highly stabilized rosin ester Excellent heat resistance, low temp. property Hot melt adhesive. Pressure sensitive adhesive Highly stabilized rosin ester. Used as a tackifier in pressure sensitive and hot melt adhesives. Offers very good heat resistance and low temperature properties.