Sterling Seal ORSIL150x250 Silicone O-Ring - 150 Standard Size, 70 Durometer, 2-7/8" ID, 3-1/16" OD - Oxygen, Ozone & UV Resistant - Vinyl Methyl Silicone (Pack of 250) - Ideal for Plumbing, Automotive & Industrial Sealing Applications

Sterling Seal & Supply Silicone O-Rings are excellent seal materials for extreme temperature in static applications. Outstanding flex and fatigue life, very good for ozone and UV radiation, insulating properties, and physiologically neutral. ORSIL150x250

Silicone O-Ring, service temperature is -90 F to 500 F (-68 C to 260 C)

Sterling Seal & Supply Silicone O-Ring, has excellent heat and compression resistance, excellent flexibility, and good electrical insulator

Silicone O-Ring, has good resistance to fungal and biological attack

At high temperatures, Silicone O-Rings are superior to most other elastic materials.

Silicone has limitations, Aromatic Hydrocarbons (benzene, toluene), aromatic mineral oil, acids and alkalis, superheated water or steam over 250 F.