This company's water-based release agent RA-12 is an economical, second-generation urethane (patents pending) for pressure sensitive adhesive tapes. It is effective for providing moderate release with high-tack and high-adhesion adhesives based on block copolymers, such as the ones used in polypropylene-backed packaging tapes, filament tapes and diaper tapes. It is also effective with natural rubber and SBR-based adhesives used in masking tapes, solvent-based acrylic and select water-based acrylic adhesives. Circle No. 99