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Trilene® 77
Lion Elastomers Trilene® 77 is a low molecular weight Ethylene Propylene (EPDM) terpolymer with 10.5% diene content for use in rubber, coating, and adhesive formulations.
Lion Elastomers Trilene® 77 grade is a crystalline waxy EPDM terpolymer that is used as an additive in rubber compounds and works well in sulfur-cured systems to reduce viscosity. It acts as a reactive plasticizer in rubber compounds without any significant loss of hardness or other mechanical properties. In coatings & adhesives Trilene® 77 EPDM is used as a nonpolar, non crystalline elastomeric material that provides strong adhesion to a variety of substrates. Additionally, Trilene® 77 demonstrates low permeability to gases and water vapor, superior impact resistance and high flexibility at low temperatures. Trilene® 77 EPDM is easier to handle during mixing compared to Trilene® 65 and 67 since it is a solid at room temperature.
Specifications
Color: Pale Yellow Form: Waxy Solid Ash: <0.1% Ethylene/Propylene: 74/26 Degree of Unsaturation (% Diene): 10.5% Type of Diene: ENB Specific Gravity: 0.86 Molecular Weight by GPC (Da): 27,000 Brookfield Viscosity (cP, RVT #7 at 60°: 800,000 Brookfield Viscosity (cP, RVT #7 at 100°: 102,000 Volatiles at 100ºC (212ºF): <0.5%
Primary Chemistry: Ethylene-Propylene Terpolymer
Features & Benefits
Easy processing and handling Easy to weigh before mixing Non-extractable Maintains mechanical properties Non-volatile Hydrophobic with low surface energy Compatible with various polymer, oil, and solvent systems Flexible at low temperatures Excellent resistance to moisture, UV light, ozone, and chemical degradation Adhesion to various substrates without the use of a primer Dielectric Strength Outstanding impact resistance
Problems Solved
Changes in the mechanical properties with the use of plasticizers of rubber compounding applications Loss of hardness caused by low stability or reactivity plasticizers Availability of low molecular weight EPDM resins Low resistance and high permeability of traditional elastomeric materials
Applications
Rubber compounding Conformal Coatings and Potting High molecular weight elastomers Thermoplastic elastomers Rubber belts and hoses for Aerospace and Automotive Building & Construction Wire & Cable Weatherstripping Conveyor belts Roof coatings Elastomeric coatings Marine coatings Anti-corrosion coatings Barrier coatings that need permeability to air, water, and chemicals Elastomeric sealants & adhesives
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