CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

Offshore

International news and technology for marine/offshore operations around the world.

more free magazines
Glossary » Design » Oring » Chemical » Varnish

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

  • Chemraz: Chemraz combines the resilience and sealing force of an elastomer with chemical resistance approaching that of PTFE.
  • Fluorocarbon: Fluorocarbon elastomer (FKM) material is also known by its tradename VITON or Fluorel.
  • Kalrez: Kalrez is the tradename for a perfluoroelastomeric material.
  • Polysulfide: Polysulfide was one of the first commercial synthetic 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).

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

  • Buna-N (Nitrile): Buna-N, also known as Nitrile rubber, is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene.
  • Fluorosilicone: Fluorosilicone combines excellent low-temperature performance of silicone with improved chemical resistance.
  • Hydrogenated Nitrile: Hydrogenated Nitrile Butadiene Rubber (HNBR) is also known as Highly Saturated Nitrile (HSN).

O-Ring materials that are NOT SUITABLE for using in the environment containing Varnish include

  • Butyl: Butyl (IIR) is a synthetic rubber, a copolymer of isobutylene and isoprene.
  • Ethylene-Propylene: Ethylene-propylene (EP) is a copolymer of ethylene and propylene.
  • Hypalon: Hypalon is the traenme of a clasof Chlorosulfonated Polyethylene (CSM).
  • Natural Rubber: Natural rubber is a product coagulated from the latex of the rubber tree, hevea brasiliensis.
  • Neoprene: Neoprene is a homopolymer of chlorobutadiene (CR).
  • Polyacrylate: Polyacrylate (ACM) is a class of copolymer of ethyl and acrylates.
  • 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.
Additional Information

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

  • Aflas: Aflas is the tradename for a unique fluoroelastomer based upon an alternating copolymer of tetrafluoroethylene and propylene ("TFE/P").
  • Epichlorohydrin: Epichlorohydrin (ECO) has properties similar to nitrile rubber but with better heat and oil resistance as well as better low temperature flexibility.
  • Cast Polyurethane: Cast Polyurethane exhibits outstanding tensile strength and abrasion resistance in comparison with other elastomers.
  • Millable Polyurethane: Millable Polyurethane rubber is made from both polyester and polyether polyols.
Related Pages