Transtar Automotive Attachment Tape Adhesion Promoter, 4 oz bottle. Body-Tec Attachment Tape Adhesion Promoter is specifically formulated for use with Transtar Attachment Tape. It is a liquid primer used for enhancing adhesion of most low surface energy plastics (TPO, PPO, PP, PC, etc.) as well as injection molded body side moldings and claddings used for automotive exterior trims. Appearance Clear. A great new product in my opinion "KAS". 4516