Silicone Rubber (Si) O-Rings (0.103 Section): Compact Sealing for Vacuum, Lab, and Analytical Applications
Silicone Rubber (Si) O-Rings (0.103 section) from TFM offer dependable static sealing performance in compact assemblies where environmental resistance and temperature stability are essential. Made from 1200-70 grade silicone, these small-profile O-rings deliver excellent resistance to ozone, moisture, and dilute acids, while maintaining reliable elasticity across a wide temperature range of –50°C to +230°C.
Ideal for miniature ports, fittings, or delicate analytical instruments, these O-rings combine thermal flexibility with non-reactive sealing—making them perfect for clean environments, vacuum systems, and low-pressure gas handling.
Key Specifications:
Material: Silicone Rubber (Grade 1200-70)
Cross-Section: 0.103 inches
Durometer: 70 Shore A
Color: Brick Red
Temperature Range: –50°C to +230°C
Key Performance Benefits:
Thermal Stability: Performs consistently under both cryogenic and moderate high-temperature conditions
Excellent Resistance: Ozone, oxygen, water vapor, UV exposure, and weak acids
Cleanroom Friendly: No plasticizers or additives—ideal for sensitive environments
Non-Reactive: Safe for food, pharma, biotech, and scientific gas sealing
Compact Fit: Suitable for miniature flanges, instrumentation ports, or precision-sealed enclosures
Common Applications:
Vacuum flange sealing (KF/CF ports, miniature valves)
Analytical and scientific instruments requiring clean seals
Biotech, medical, and pharmaceutical assemblies
Low-pressure gas systems and feedthroughs in UHV-compatible environments
TFM’s Silicone Rubber (Si) O-Rings (0.103 section) are the preferred choice where compact size, material purity, and environmental durability are critical.
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