A step up from Buna-N, these HNBR O-rings contain extra hydrogen to better resist chemicals, weather, and abrasion.

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.

Also known as Boss O-rings, these O-rings are for use in tube fittings with a straight-thread connection. They are brown for easy identification.

Made of Kalrez 4079, these O-rings combine the chemical resistance of PTFE with the springy softness of Viton® fluoroelastomer.

Create seals for use in semiconductor manufacturing, food processing, and other highly controlled applications. More pure than Kalrez 4079 O-rings, these Kalrez 6230 O-rings won’t leach contaminants into your line.

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

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.

Much thicker than sealants for fine threads, these sealants bridge the gaps between coarse threads.

PTFE provides a slippery surface that keeps threads from binding. These sealants never fully harden, remaining pliable enough to self-heal and stop leaks before they start.

Completely free of oil and chemically inert, these sealants are safe to use with wet and dry oxygen systems.

Remaining pliable over time, these high-temperature sealants protect against leaks caused by vibration and pressure—they naturally fill voids before leaks can develop.

This tape has a higher density than standard tape for a better seal between threads.

This tape contains nickel to prevent seizing and galling associated with stainless steel threaded connections. It’s also good for use with other metals.