Tested to meet ASTM E595, a standard used by NASA, these O-rings give off almost no volatile emissions that could damage sensitive electronics, even in a vacuum.

Because one black O-ring looks just like another, these O-rings are brown for easy identification.

Inherently softer and more compressible than PTFE O-rings, these Kalrez 4079 O-rings have comparable chemical resistance.

Made of Kalrez 6230, these O-rings are for use when high purity is essential, such as with food and semiconductors.

These O-rings withstand higher temperatures than standard EPDM O-rings.

Designed to withstand extreme environments, these fluoroelastomer sealants have excellent resistance to harsh chemicals. They’re non-sagging, so they won't drip from vertical and overhead surfaces.