FC K0142B Resistant O-Rings and Seals
FC K0142B is also known as perfluorooctanesulfonic acid (PFOS). It is a man-made fluorosurfactant used in a variety of products such as firefighting foam, fabric protectors, and non-stick coatings. When exposed to rubber, PFOS can cause a variety of types of failure. It can cause swelling and cracking of the rubber, leading to decreased elasticity and increased permeability. It can also cause corrosion of the metal core of the rubber, leading to further weakening of the rubber. Ultimately, long-term exposure to PFOS can lead to complete failure of the rubber seal or gasket.
Buna-N (NBR, Nitrile, Buna)
Buna-N o-rings also referred to as NBR o-rings and Nitrile o-rings are the most widely used o-ring material in the word because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, and the default choice for basic applications. Buna-N o-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or hash chemicals, acids, keytones and many others.
B1000 Buna-N
- General purpose material
B1001 Buna-N
- For higher pressure applications
M1004 Buna-N
- Listed on the Qualified Products List (QPL)
- For higher pressure applications
Rubber Material Compatibility with FC K0142B
View some of our other material compatibility ratings with FC K0142B. If you don't see what you're looking for or need more guidance, our team of experienced sealing design engineers can help select the best sealing products and material for your specific application.
View Full Chemical Compatibility Guide
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