O-Ring cord stock to make your own O-rings and gaskets

Please note: Priced & sold per foot. If ordering more than one foot (of the same size), the cord will come as one whole length.

Neoprene (Chloroprene, CR)   

Chloroprene (commonly known as "Neoprene") is one of the oldest synthetic elastomers, introduced in 1931.  Neoprene exhibits generally good ozone, aging and chemical resistance. It has good mechanical properties over a wide temperature range.

Heat Resistance:

• Up to approximately 250°F (121°C).

Cold Flexibility:

• Down to approximately –40°F (–40°C).

Chemical Resistance:

• Paraffin base mineral oil with low DPI, e.g. ASTM oil No. 1
• Silicone oil and grease
• Water and water solvents at low temperatures
• Refrigerants
• Freon, 113, 114, 114B2, 13, 22, 31, 32, 502 (F22+F316), C318, and TF
• Ammonia
• Carbon dioxide
• Improved ozone, weathering and aging resistance compared with nitrile rubber.

Limited Compatibility:

• Naphthalene based mineral oil (IRM 902 and IRM 903 oils)
• Low molecular aliphatic hydrocarbons (propane, butane, fuel)
• Glycol based brake fluids.

Not Compatible With:

• Aromatic hydrocarbons (benzene)
• Chlorine, Wet
• Chlorinated hydrocarbons (trichloroethylene)
• Brake Fluid
• Gasoline
• Polar solvents (ketones, esters, ethers, acetones).