Is the rated temperature range of -60°C to 250°C reliable in practice?

The -60°C to 200°C range is reliable for continuous long-term use. Silicone’s Si–O backbone has a high bond dissociation energy that confers thermal stability, and its glass transition temperature is around -120°C, which keeps the material flexible at cryogenic temperatures. The range from 200°C to 250°C should be treated as a short-term or intermittent upper limit: prolonged exposure at these temperatures accelerates thermo-oxidative aging, leading to hardening, reduced elasticity, and eventual embrittlement. The actual service life at elevated temperatures depends on the specific compound, including vinyl content and heat-stabilizing additives, as well as whether the environment is open-air or enclosed. The nominal -60°C to 250°C figure reflects the material’s theoretical tolerance; for continuous operation, -50°C to 200°C is the practical working range. Contact Ruixiang’s technical team for grade-specific temperature ratings.

For product specifications, technical data sheets, or sample requests, contact the Ruixiang team: olivia@dgruixiang.com  |  www.medicalsiliconetube.com