| Material |
Temperature Range |
Chemical Resistance |
Compression Set |
Durometer (Shore A) |
Best For |
| VMQ Silicone (Standard Silicone Rubber) |
–60°C to +230°C |
Good resistance to water, mild chemicals, ozone, and weathering |
Low compression set |
30–80 |
General industrial sealing, HVAC, medical devices, enclosures, high-heat equipment |
| Platinum-Cured Silicone |
–60°C to +230°C |
Excellent purity; resistant to oxidation, sterilization, and food/medical chemicals |
Very low compression set |
30–70 |
Food processing, pharmaceutical systems, sanitary applications, medical devices |
| Peroxide-Cured Silicone |
–50°C to +200°C |
Good chemical resistance; suitable for industrial oils and moderate solvents |
Moderate compression set |
40–80 |
Industrial machinery, oven doors, automotive components, moderate chemical exposure |
| Silicone Sponge |
–55°C to +200°C |
Good environmental and weathering resistance |
Low to moderate (depends on density) |
Soft/Medium ( varying densities ) |
Enclosure sealing, vibration damping, outdoor gaskets, IP-rated equipment |
| Silicone Foam |
–55°C to +200°C |
Good resistance to water, ozone, and thermal cycling |
Moderate |
Soft |
Thermal insulation, cushioning, light sealing, electrical enclosures |
| Fluorosilicone (FVMQ) |
–60°C to +200°C |
Excellent resistance to fuels, oils, solvents, hydraulic fluids |
Low compression set |
40–80 |
Aerospace fuel systems, automotive fuel exposure, chemical processing |
| High-Temperature Silicone (Special Formulations) |
–70°C to +260°C (intermittent) |
Good resistance to heat, ozone, and environmental exposure |
Low |
40–70 |
Extreme heat applications, industrial furnaces, high-temp process equipment |
| PTFE |
-200°C to +260°C |
Universal |
Good (with proper design) |
Requires high bolt load |
Excellent |