Opaque Thread Sealants | McMaster-Carr

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181 Products

Thread Sealants

Non-Hardening Thread Sealants with PTFE

Slippery to keep threads from binding, and remain pliable enough to self-heal and stop leaks

24 products

Thread Sealants with PTFE

PTFE provides a slippery surface that keeps threads from binding

24 products

Thread Sealants for Hydraulic and Compressed Air Systems

High lubricity so it's easy to assemble finely threaded components

18 products

Non-Hardening Thread Sealants

Remain pliable enough to self-heal and stop leaks in high-vibration applications

12 products

Thread Sealants for Oxygen Systems

Chemically inert and completely free of oil so they're safe in wet and dry oxygen systems

2 products

High-Temperature Thread Sealants

Withstand temperatures up to 1500° F

7 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

12 products

Non-Hardening High-Temperature Thread Sealants

Remain pliable over time in temperatures up to 1,100° F

5 products

Drip-Free Thread Sealants with PTFE

The stick applies without a mess to keep threads from binding

1 product

Reusable Non-Hardening Thread Sealants for Coarse Threads

Thicker than sealants for fine threads to bridge gaps between coarse threads

1 product

Reusable Non-Hardening Thread Sealants for Fine Threads

Flow into small spaces between fine threads

1 product

Drip-Free Non-Hardening Thread Sealants

Apply without a mess, and remain pliable enough to self-heal and stop leaks in high vibration

1 product

Drip-Free Non-Hardening Thread Sealants with PTFE

Apply without a mess to keep threads from binding and stop leaks in high vibration

3 products

Thread Sealants for Refrigeration Systems

Maintains integrity when exposed to strong chemicals

5 products

Thread Sealant Tape

High-Density Thread Sealant Tape

A higher density than standard tape for a better seal between threads

31 products

Thread Sealant Tape

Made of PTFE so the surface is slippery to keep threads from binding

17 products

Thread Sealant Tape for Stainless Steel Threads

Nickel prevents seizing and galling associated with stainless steel threaded connections

8 products

Choose-a-Color High-Density Thread Sealant Tape

Use color to identify water, gas, chemical, or other connections

7 products

Thread Sealant Tape for Copper, Brass, and Bronze Threads

Contain 10% copper flake to match the color of copper, brass, and bronze threads

2 products