Cohedur® RK

Cohedur® RK by Rhein Chemie Additives (Lanxess Group) is a bonding agent. It imparts good adhesion to all the normal reinforcing materials like rayon, poly-amide, polyester with special spin finish, glass fibers and bare and galvanized without their first having to be treated with a bonding agent. It serves as the resorcinol component of the three-component system. It exhibits better scorch resistance than those made with resorcinol itself. It can be used in rubber solutions for the dough spreading process. It finds application in chloroprene rubber, NR, SBR, BR and their blends. Recommended typical levels of addition based on 100 parts by weight of elastomer are 7-9 phr in Cohedur® RK, 10- 30 phr in Vulkasil® S and 2-2.5 phr in Cohedur® A. It has a shelf life of 2 years.