ZN89 Zinc resinate Rit-Chem Crosslinking / Coupling / Curing Agents Chloroprene Rubber (CR) Rubber - Elastomer (Chloroprene, Butyl …) Zinc resinate for use as a cross-linking agent with phenolics to promote high temperature resistance in resin/rubber mixtures (i.e. chloroprene, nitrile, NRT, etc.) Zinc resinate. Used as a cross-linking agent with phenolics to promote high temperature resistance in resin/rubber mixtures (chloroprene, nitrile, NRT, etc).