Precision Damping Meets Deep‑Cold Reliability – IOTA 3110-E Ethyl Silicone Rubber
In advanced electronics, aerospace systems, and deep-cryogenic engineering, materials must perform under two demanding requirements: mechanical stability at extreme low temperatures, and consistent damping behavior over time. The IOTA 3110-E Ethyl Silicone Rubber meets both challenges with a unique polymer design.
By introducing ethyl groups into the polysiloxane backbone, IOTA 3110-E achieves an exceptionally low glass transition temperature down to -147°C, far beyond the capability of conventional silicone rubbers. This structure also delivers a stable elastic modulus and a nearly constant damping factor, making it an ideal base polymer for vibration and shock absorption components in precision instruments, navigation devices, and sensitive electronic housings.
Three grades are available: IOTA 3110-E-1 (20 mol% ethyl), IOTA 3110-E-2 (30 mol% ethyl), and IOTA 3110-E-3 (50 mol% ethyl). Their molecular weight ranges from 500,000 to 1,000,000 depending on the grade, with controlled vinyl content from 0.07 mol% to 0.8 mol% for optimized cure systems. Volatile content does not exceed 3%, supporting consistent processing.
This material is particularly valuable for high-latitude equipment, deep-sea exploration tools, and aerospace actuators where both cold flexibility and vibration control are required. It is supplied in 20 kg boxes, with a recommended shelf life of 36 months under dry, room-temperature storage.
For designers seeking damping stability without sacrificing extreme low-temperature performance, IOTA 3110-E provides a proven and practical solution.