Trilene CP80 Ethylene-propylene-dicyclopentadiene polymer Chemtura (Crompton-Uniroyal Chemical) Acrylic Monomers Trilene® CP80 EPM, Liquid EPM Trilene® CP80 is a liquid EPM that has an Ethylene/Propylene ratio of 43/57 and has a Brookfield viscosity of 500,000 cps at 60C. It can be used in coatings, adhesives, and as an additive to improve properties and processing of higher molecular weight, solid polymers, such as Royalene® EPDM. Ethylene-propylene liquid polymer (EPM). Used in coatings, and as an additive to improve properties and processing of higher molecular weight, solid polymers.