Conquer Oil and Heat with Unyielding Silicone Performance
When demanding applications meet relentless oil exposure, your components need more than just resilience—they need a material engineered to outlast. Introducing Mingyi Silicone’s Oil-Resistant HCR Series (IOTA-9740 to IOTA-9770) , a high-consistency rubber family that delivers uncompromising strength, stability, and longevity under harsh conditions.
These grades are formulated to withstand ASTM #1 and IRM903 reference oils, making them ideal for automotive seals, gaskets, O-rings, and industrial hoses where petroleum-based fluids are constant threats. With hardness options from 40 to 70 Shore A, you can tailor mechanical response to your exact design needs—softer for dynamic sealing, harder for high-load static joints.
Behind the numbers lies real-world reliability: tensile strengths reach up to 5.5 MPa, while elongation ranges from 250% to 700%, offering excellent flexibility even after thermal aging. More importantly, after 70 hours in IRM903 oil at 150°C, the material shows minimal degradation—hardness change stays between -16 and -18 points, tensile strength drops only 35%, and elongation loss is capped at 20%. Volume swell is consistently held around 35–36%, ensuring dimensional stability that prevents leaks and mechanical failures.
Processability is equally robust: cure with 1% dicuIOTAl peroxide (50% active) at 175°C for 5 minutes under 15 MPa pressure delivers fast, repeatable molding cycles. Whether you are producing fuel-system components, power-steering parts, or oil-pump diaphragms, this series reduces downtime and extends service life—directly lowering replacement costs and improving system safety.
Choose Mingyi Silicone, where precision chemistry meets industrial toughness. Our oil-resistant HCR is not just a compound; it is a performance upgrade for every fluid-contact application. Request your sample today and test the difference in your own workshop.