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Fluorosilicone compound rubber

The main chain structure of the subchain is consistent with that of ordinary silicone rubber, while trifluoropropyl is introduced into the side chain. Therefore, fluorosilicone rubber perfectly combines the advantages of fluororubber and silicone rubber. It has the excellent oil resistance and high temperature resistance of fluororubber, and the softness and excellent high and low temperature resistance of silicone rubber. It is suitable for various harsh low temperature, high temperature and oil resistant occasions.

Product features:

□ Easy to process and color

□ Wide operating temperature range -60-230

□ Excellent oil resistance and non-polar solvent resistance

□ Suitable for manufacturing rubber products of various hardness, hardness (Shore A) 20-90

□ Excellent flame retardancy

CategoryDetails
Composition Base Polymer: Fluorosilicone copolymer (FVMQ)
Reinforcing Fillers: Carbon black (20–40 phr), silica (10–30 phr)
Plasticizers: Silicone oil (5–10 phr)
Curing Agents: Peroxide (DCP, 0.5–2 phr) or platinum catalyst (addition cure)
Physical Properties Hardness (Shore A): 40–80 (ASTM D2240)
Tensile Strength: 5–15 MPa (ASTM D412)
Elongation at Break: 200–600% (ASTM D412)
Density: 1.3–1.5 g/cm³
Thermal Resistance Service Temperature: -60°C to +200°C (intermittent 250°C)
Thermal Stability: <15% weight loss at 250°C (24h, ASTM D573)
Chemical Resistance Resistant To: Mineral oils, fuels, silicone fluids, and dilute acids/bases
Limitations: Brake fluids (glycol-based), strong acids, and aromatic solvents
Key Applications Aerospace: Fuel tank seals and hydraulic gaskets
Automotive: Turbocharger hoses and fuel injector O-rings
Medical: Long-term implants and drug-contact devices (biocompatible grades)
Industrial: Solvent-resistant seals and vibration dampers
Processing Mixing: Two-roll mill (15–25 min, 30–50°C) or internal mixer
Molding: Compression/injection molding (150–180°C, 5–15 MPa)
Curing: Post-cure (200°C, 2–4h) for compression set optimization
Safety & Compliance MSDS: Non-flammable (flash point >300°C); avoid inhalation/skin contact
Regulatory: USP Class VI, ISO 10993 (biocompatibility), and FDA 21 CFR 177.2600
Storage Conditions: Cool (<25°C), dry, away from UV/ozone; shelf life 6–18 months
Packaging: Aluminum-lined bags (prevent moisture/contamination)
Quality Control Testing: Mooney viscosity (ML 1+4. ASTM D1646), compression set (ASTM D395)
Certifications: ISO 13485 (medical), ASTM D2000 (standard classification)

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