Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

NASA Tech Briefs

Innovations developed by NASA and its industry partners in a wide array of fields.

Chemical Engineering

The industry gateway for chemical engineering and plant operations.

Autonomous Vehicle Engineering

The No. 1 media source for those developing the next generation mobility solutions.

more free magazines
Glossary » Design » Oring » Chemical » Automotive Brake Fluid

Common O-Ring materials that are SUITABLE for dynamic and static seal in the environment containing Automotive Brake Fluid include

  • Chemraz: Chemraz combines the resilience and sealing force of an elastomer with chemical resistance approaching that of PTFE.
  • Ethylene-Propylene: Ethylene-propylene (EP) is a copolymer of ethylene and propylene.
  • Silicone: Silicone is a semi-organic elastomer with outstanding resistance to extremes of temperature.
  • Styrene Butadiene: Styrene-Butadiene rubber (SBR) has properties similar to those of natural rubber.

The O-Ring materials below are USUALLY SUITABLE for static seal in the environment containing Automotive Brake Fluid.

  • Butyl: Butyl (IIR) is a synthetic rubber, a copolymer of isobutylene and isoprene.
  • Hypalon: Hypalon is the traenme of a clasof Chlorosulfonated Polyethylene (CSM).
  • Neoprene: Neoprene is a homopolymer of chlorobutadiene (CR).

O-Ring materials that are NOT SUITABLE for using in the environment containing Automotive Brake Fluid include

  • Fluorocarbon: Fluorocarbon elastomer (FKM) material is also known by its tradename VITON or Fluorel.
  • Fluorosilicone: Fluorosilicone combines excellent low-temperature performance of silicone with improved chemical resistance.
  • Polysulfide: Polysulfide was one of the first commercial synthetic elastomers.
  • Millable Polyurethane: Millable Polyurethane rubber is made from both polyester and polyether polyols.
Additional Information

There is not enough data to determine whether the following common O-Ring materials are suitable for using in the environment containing Automotive Brake Fluid or not.

  • Aflas: Aflas is the tradename for a unique fluoroelastomer based upon an alternating copolymer of tetrafluoroethylene and propylene ("TFE/P").
  • Buna-N (Nitrile): Buna-N, also known as Nitrile rubber, is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene.
  • Epichlorohydrin: Epichlorohydrin (ECO) has properties similar to nitrile rubber but with better heat and oil resistance as well as better low temperature flexibility.
  • Kalrez: Kalrez is the tradename for a perfluoroelastomeric material.
  • Natural Rubber: Natural rubber is a product coagulated from the latex of the rubber tree, hevea brasiliensis.
  • Hydrogenated Nitrile: Hydrogenated Nitrile Butadiene Rubber (HNBR) is also known as Highly Saturated Nitrile (HSN).
  • Polyacrylate: Polyacrylate (ACM) is a class of copolymer of ethyl and acrylates.
  • Cast Polyurethane: Cast Polyurethane exhibits outstanding tensile strength and abrasion resistance in comparison with other elastomers.
  • Virgin Teflon: Because Teflon is a hard plastic rather than a stretchy elastomer, it is uncommon to see an o-ring that is made entirely of Teflon.
  • Vamac: Vamac is the tradename of a class of Ethylene Acrylic elastomer (AEM).
Related Pages