Silicone O-Rings

Silicone O-Rings

Silicone materials offer outstanding temperature resistance across a broad range, from -65F to 450F. Silicone materials provide excellent resistance to sunlight, ozone, oxygen, UV light and moisture. It's inert qualities make it the preferred material for use with food handling and medical applications. Silicone offers poor tensile, tear and abrasion resistance, and are not recommended for dynamic applications.

Common products for Silicone O-rings:
AS568 O-Rings Silicone
Metric O-Rings Silicone
Industrial Standard Silicone O-Ring Kit - K436X36S70
Silicone O-Ring Kit 12 Popular Sizes - K200X12S70


Basic Physical Properties

	Excellent	Good	Fair	Poor
Abrasion resistance				•
Compression Set		•
Elongation	•
Flame resistance		•
Gas permeability				•
Low temperature flexibility	•
Tear resistance				•
Tensile strength				•

Basic Chemical Resistances

	Excellent	Good	Fair	Poor
Dilute acids		•
Dilute alkalis	•
Ketones				•
Ozone	•
Petroleum oils				•
Steam			•
Vegetable oils	•
Water			•
Weather	•

Viton O-Rings 75 FKM Black

Viton® Fluorocarbon 75 Black O-rings

The fluorocarbon also known as Viton O-Rings have similar functional characteristics to Buna-N, but with much higher temperature and chemical resistance characteristics. General purpose sealing. Automotive, Aerospace fuels & lubricants. They are suitable for 200°C and up to 300°C for short periods, and have excellent resistance to ozone and weathering, oils and most chemicals. They are also the most commonly used material in the automotive industry.



Most Common Products For Viton 75 O-rings:
AS586 O-Rings Viton FKM 75 Black
Metric O-Ring Viton FKM 75 Black 
Viton FKM 75 Assorted O-Ring Kits 

Max Truck Kit Viton 75 and 90 O-ring Kit 1415pc

Viton Industrial Standard O-ring Kit 36-Sizes 436 O-rings

Viton O-ring Kit - 200 Piece 12 Popular Sizes - Duro 75

Operating Temperature

-15 to 400 °F

Basic Physical Properties

	Excellent	Good	Fair	Poor
Abrasion resistance		•
Compression Set	•
Elongation			•
Flame resistance	•
Gas permeability	•
Low temperature flexibility				•
Tear resistance			•
Tensile strength		•

Basic Chemical Resistance

	Excellent	Good	Fair	Poor
Anhydrous ammonia				•
Dilute acids	•
Dilute alkalis	•
Ketones			•
Ozone	•
Petroleum oils	•
Solvents	•
Steam			•
Water	•
Weather	•

Buna-N 70 O-rings

 Buna-N 70 O-rings

Buna-N 70 Durometer O-Rings are the most common material O-Rings produced. Buna-N also known as Nitrile rubber, NBR, or acrylonitrile butadiene. It is the least expensive of the oil resistant elastomers, and is readily available in all AS568 O-Rings and most Metric O-Ring sizes. As well as the individual O-Rings, we stock a good variety of Buna-N O-Ring Kits on our online store. This material is also very common in Hydraulic and Pneumatic Seals.

Most common products of Buna-N 70 O-Rings

- AS568 O-Rings Buna-N 70
- Metric O-Rings Buna-N 70
- Max Truck Kit Buna-N 70
- Industrial Standard O-Ring Kit K436X36N70
- 12 Popular Sizes K200X12N70


Basic Physical Properties:

	Excellent	Good	Fair	Poor
Abrasion resistance	•
Compression Set		•
Elongation		•
Flame resistance				•
Gas permeability		•
Low temperature flexibility		•
Tear resistance		•
Tensile strength		•

Basic Chemical Resistances:

	Excellent	Good	Fair	Poor
Brake fluid				•
Dilute acids		•
Dilute alkalis		•
Hydraulic fluids		•
Ketones				•
Ozone				•
Petroleum oils	•
Silicone Fluids	•
Steam			•
Strong acids				•
Transmission fluids		•
Water	•
Weather				•