Sealant Strips | McMaster-Carr

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116 Products

About Sealant Flexibility

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 Tape

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

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.

Thread Sealant Tape for Copper,
Brass, and Bronze Threads

With 10% copper flake content, this tape matches the color of copper, brass, and bronze threads for a seamless finish.

Backer Rods

Provide support for sealants in gaps—insert these backer rods into gaps and fill in with sealant.

Non-Hardening Caulk

Also known as thumb-grade caulk, this forms a non-hardening, moisture-resistant seal that remains pliable.

Caulking Tape

Press this adhesive-backed plastic tape into place for an immediate light-duty seal.

Glass Sealing Rope

Press this pliable rope into place to hold glass in window frames and seal leaks.

Fire-Rated Glass Sealing Tape

Seal glass windows in metal and wood fire-rated doors.

Compression Seal Tape

Wrap this tape tightly around pipe and other surfaces to seal cracks and joints without having to shut down your system.

Backer Rod Insertion Tools

Quickly set foam backer rods in caulk joints at a consistent depth without puncturing them.