McMaster-Carr

Often used in high-vibration applications that could cause standard thread sealants to fail, these never fully harden and remain pliable enough to self-heal and stop leaks before they start.

Reusable Non-Hardening Thread
Sealants for Fine Threads

Formulated to flow into small spaces, use these sealants between fine threads.

Reusable Non-Hardening Thread
Sealants for Coarse Threads

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

Drip-Free Non-Hardening
Thread Sealants

Apply this thread sealant stick without a mess.

Thread Sealants

These sealants come in bottles, cans, and tubes so you can choose the quantity that covers your application.

Non-Hardening High-Temperature
Thread Sealants

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

High-Temperature Thread Sealants

Thread Sealants for Hydraulic
and Compressed Air Systems

Formulated for high lubricity, these sealants allow easy assembly of finely threaded hydraulic and compressed air system components. They're also free of fillers that could contaminate system media.

Thread Sealants for Oxygen Systems

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

Thread Sealants for
Refrigeration Systems

For use in refrigeration systems and applications exposed to strong chemicals, these sealants have excellent solvent resistance.

Thread Sealant Tape

Made of PTFE, this tape has a slippery surface that keeps threads from binding to make parts easy to assemble.

High-Density Thread Sealant Tape

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

Choose-a-Color High-Density
Thread Sealant Tape

Use color to identify water, gas, and chemical connections.

Thread Sealant Cord

Wind this multifilament cord into the grooves of tapered pipe threads to quickly create a seal.

Thread Sealant Tape for
Stainless Steel 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.

Terms and Conditions and Privacy Policy

About Sealant Flexibility

Thread Sealants

Thread Sealants with PTFE

Drip-Free Thread Sealants with PTFE

Non-Hardening ThreadSealants with PTFE

Drip-Free Non-HardeningThread Sealants with PTFE

Non-Hardening Thread Sealants

Reusable Non-Hardening ThreadSealants for Fine Threads

Reusable Non-Hardening ThreadSealants for Coarse Threads

Drip-Free Non-HardeningThread Sealants

Thread Sealants

Non-Hardening High-TemperatureThread Sealants

High-Temperature Thread Sealants

Thread Sealants for Hydraulicand Compressed Air Systems

Thread Sealants for Oxygen Systems

Thread Sealants forRefrigeration Systems

Thread Sealant Tape

Thread Sealant Tape

High-Density Thread Sealant Tape

Choose-a-Color High-DensityThread Sealant Tape

Thread Sealant Cord

Thread Sealant Tape forStainless Steel Threads

Non-Hardening Thread
Sealants with PTFE

Drip-Free Non-Hardening
Thread Sealants with PTFE

Reusable Non-Hardening Thread
Sealants for Fine Threads

Reusable Non-Hardening Thread
Sealants for Coarse Threads

Drip-Free Non-Hardening
Thread Sealants

Non-Hardening High-Temperature
Thread Sealants

Thread Sealants for Hydraulic
and Compressed Air Systems

Thread Sealants for
Refrigeration Systems

Choose-a-Color High-Density
Thread Sealant Tape

Thread Sealant Tape for
Stainless Steel Threads