EF Adhesion Promoter 42 is a single component substance designed to improve adhesion to low surface energy plastics such as polyethylene, polypropylene and Santoprene to similar materials using Hernon Instantbond adhesives. EF Adhesion Promoter 42 is environmentally friendly and dries quickly. EF Adhesion Promoter 42 provides a strong and durable bond on treated low energy plastics.