| Material | Abbreviation | Chemical Name | Other Trade Names | ASTM 2000 Designations |
| Silicone | VMQ | Polysiloxane | PVMQ | FC, FE, FG |
Silicone Rubber (Q, MQ, VMQ, PVMQ)
Silicones have good ozone and weather resistance as well as good insulating and physiologically neutral properties. However, silicone elastomers as a group have relatively low tensile strength, poor tear strength and little wear resistance.
Heat resistance
• Up to approximately 204°C (400°F) special compounds up to 260°C (500°F)
Cold flexibility
• Down to approximately -54°C (-65°F) special compounds down to -115°C (-175°F)
Chemical resistance
• Animal and vegetable oil and grease
• High molecular weight chlorinated aromatic hydrocarbons (including flame-resistant insulators,and coolant for transformers)
• Moderate water resistance
• Diluted salt solutions
• Ozone, aging and weather
Not compatible with:
• Superheated water steam over 121°C (250°F)
• Acids and alkalis
• Low molecular weight chlorinated hydrocarbons (trichloroethylene)
• Hydrocarbon based fuels
• Aromatic hydrocarbons (benzene, toluene)
• Low molecular weight silicone oils
