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Ethylene acrylate rubber compound

Ethylene acrylate has excellent heat and chemical resistance. It can be used within -40℃~175℃, has excellent ozone resistance, aging resistance, good compression permanent deformation, and good tolerance to oils such as automotive transmission oil and engine oil, so it is widely used in automotive accessories.

Technical parameters:

CategoryDetails
Composition Base Polymer: Ethylene-Acrylate Ester Copolymer (AEM, e.g., Vamac®)
Reinforcing Fillers: Carbon black (40–60 phr), silica (10–20 phr)
Plasticizers: Adipate esters (5–10 phr)
Curing Agents: Peroxide (DCP, 1–3 phr) or diamines (0.5–2 phr)
Physical Properties Hardness (Shore A): 60–90 (ASTM D2240)
Tensile Strength: 10–20 MPa (ASTM D412)
Elongation at Break: 200–500% (ASTM D412)
Density: 1.1–1.3 g/cm³
Thermal Resistance Service Temperature: -30°C to +175°C (intermittent 200°C)
Thermal Stability: <8% weight loss at 175°C (24h, ASTM D573)
Chemical Resistance Resistant To: Mineral oils, greases, engine coolants, and ozone
Limitations: Strong acids, alkalis, and polar solvents (e.g., acetone)
Key Applications Automotive: Turbocharger hoses, transmission seals, and ignition wires
Industrial: High-temperature gaskets, vibration dampers, and cable jacketing
Aerospace: Fuel-resistant seals and hydraulic components
Processing Mixing: High-shear internal mixer (70–90°C) or two-roll mill
Molding: Compression/injection molding (180–200°C, 10–20 MPa)
Curing: Post-cure (180°C, 2–4h) for optimal compression set
Safety & Compliance MSDS: Non-flammable (flash point >250°C); avoid inhalation/skin contact
Regulatory: REACH, RoHS, and ISO 8067 (automotive seals)
Storage Conditions: Dry, <25°C, away from UV/ozone; shelf life 12–18 months
Packaging: Polyethylene-lined bags (prevent moisture absorption)
Quality Control Testing: Mooney viscosity (ML 1+4. ASTM D1646), compression set (ASTM D395)
Certifications: ISO 9001 (manufacturing), IATF 16949 (automotive)

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