Unleashing Extreme Performance: IOTA FHTV 3401H Series High-Strength Fluorosilicone Rubber

When your application demands more than just ordinary elastomers, the IOTA FHTV 3401H Series steps up as the reliable solution. Engineered for high-stress environments, this high-strength fluorosilicone rubber combines the best of fluorocarbon and silicone chemistry, delivering outstanding mechanical strength alongside exceptional fluid resistance.

The FHTV 3401H Series offers two versatile grades—FHTV3461H and FHTV3471H—to match your specific design needs. With hardness levels of 60 and 69 Shore A, tensile strengths above 11.3 MPa, and tear strengths reaching 30 kN/m, these materials provide the toughness required for demanding sealing and damping components. Meanwhile, elongation at break values of 351% and 382% ensure sufficient flexibility for dynamic applications.

Where this material truly shines is in harsh media exposure. After 72 hours in Fuel C at 23°C, volume swell remains below 21%, confirming excellent resistance to fuels, oils, and solvents. Thermal stability is equally impressive: after 72 hours at 225°C, hardness changes are minimal (just +2 points), with tensile and elongation retention well within acceptable ranges. With a compression set of only 10–11% (177°C × 22h), long-term sealing reliability is assured—even under sustained heat and pressure.

Processing is straightforward, with a recommended peroxide curing system (0.6–1.0 phr of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane). A two-stage cure—170°C × 15 min plus post-cure at 200°C × 4h—unlocks full property potential. For elevated-temperature service above 200°C, the addition of a thermal stabilizer is recommended to maximize longevity.

Packaged in convenient 20 kg cartons, the FHTV 3401H Series has a 12-month shelf life when stored in a cool, dry environment. Note that the compound exhibits cold flow, so proper handling and sealed packaging are advised.

From automotive fuel systems to aerospace seals and industrial chemical-processing equipment, the IOTA FHTV 3401H Series delivers proven performance where others fall short. Elevate your design with fluorosilicone resilience that you can count on—contact our technical team today to find the right grade for your next project.