Plumbers' Tape | McMaster-Carr

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About Sealant Flexibility

Selecting Clamps Using Pipe, Conduit, or Tubing Trade Size

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

PTFE tape with graphite creates a better seal between threads than plain PTFE tape, which helps prevent fluid and gas leaks. The graphite attaches to the PTFE, so this tape does not emit harmful VOCs.

			Max. Pressure, psi
Mfr. Model No.	Wd.	Lg., yd.	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Color		Each
3M PTFE
0.003" Thick.
547	3/8"	36	Not Rated	Not Rated	-40° to 170°	6"	White	0000000	000000

			Max. Pressure, psi							Each
Wd.	Lg., yd.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Specifications Met	Color		1-11	12-Up
PTFE
0.0032" Thick.
1/4"	14	0.7	10,000	10,000	-450° to 550°	1/2"	FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed	White	0000000	00000	00000
3/8"	14	0.7	10,000	10,000	-450° to 550°	3/4"	FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed	White	0000000	0000	0000
1/2"	14	0.7	10,000	10,000	-450° to 550°	1"	FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed	White	0000000	0000	0000
3/4"	14	0.7	10,000	10,000	-450° to 550°	1 1/2"	FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed	White	0000000	0000	0000
1"	14	0.7	10,000	10,000	-450° to 550°	2"	FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed	White	0000000	0000	0000
1 1/2"	14	0.7	10,000	10,000	-450° to 550°	3"	FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed	White	0000000	0000	0000
2"	14	0.7	10,000	10,000	-450° to 550°	4"	FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed	White	0000000	00000	00000

0.0035" Thick.
1/2"	39	0.8	10,000	10,000	-450° to 500°	2"	UL Listed, C-UL Listed	Blue	0000000	0000	00
3/4"	39	0.8	10,000	10,000	-450° to 500°	2"	UL Listed, C-UL Listed	Blue	0000000	0000	00
1"	39	0.8	10,000	10,000	-450° to 500°	2"	UL Listed, C-UL Listed	Blue	0000000	00000	00
2"	39	0.8	10,000	10,000	-450° to 500°	2"	UL Listed, C-UL Listed	Blue	0000000	00000	00

			Max. Pressure, psi
Wd.	Lg., yd.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Color		Each
ePTFE with Graphite
0.002" Thick.
5/8"	27	0.8	2,900	2,900	-400° to 500°	1 1/4"	Gray	0000000	000000

High-Density Thread Sealant Tape

This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.

			Max. Pressure, psi							Each
Wd.	Lg., yd.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Specifications Met	Color		1-11	12-Up
PTFE
0.0032" Thick.
1/4"	14	1.2	10,000	10,000	-450° to 550°	1/2"	MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
1/4"	14	1.2	10,000	10,000	-450° to 550°	1/2"	MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II	Gray	0000000	0000	0000
3/8"	14	1.2	10,000	10,000	-450° to 550°	3/4"	MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II	White	0000000	0000	0000
3/8"	14	1.2	10,000	10,000	-450° to 550°	3/4"	MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II	Gray	0000000	0000	0000
1/2"	14	1.2	10,000	10,000	-450° to 550°	1"	MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II	White	0000000	0000	0000
1/2"	14	1.2	10,000	10,000	-450° to 550°	1"	MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II	Gray	0000000	0000	0000
3/4"	14	1.2	10,000	10,000	-450° to 550°	1 1/2"	MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II	White	0000000	0000	0000
3/4"	14	1.2	10,000	10,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II	Gray	0000000	0000	0000
1"	14	1.2	10,000	10,000	-450° to 550°	2"	MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II	White	0000000	00000	0000
1"	14	1.2	10,000	10,000	-450° to 550°	2"	MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II	Gray	0000000	00000	00000
1 1/2"	14	1.2	10,000	10,000	-450° to 550°	3"	MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
1 1/2"	14	1.2	10,000	10,000	-450° to 550°	3"	MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II	Gray	0000000	00000	00000
2"	14	1.2	10,000	10,000	-450° to 550°	4"	MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
0.0035" Thick.
1/4"	14	1.9	10,000	10,800	-450° to 550°	6"	MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II	White	0000000	00000	0000
3/8"	14	1.9	10,000	10,800	-450° to 550°	6"	MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
1/2"	14	1.9	10,000	10,800	-450° to 550°	6"	MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
3/4"	14	1.9	10,000	10,800	-450° to 550°	6"	MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
1"	14	1.9	10,000	10,800	-450° to 550°	6"	MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
1 1/2"	14	1.9	10,000	10,800	-450° to 550°	6"	MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000
2"	14	1.9	10,000	10,800	-450° to 550°	6"	MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II	White	0000000	00000	00000

			Max. Pressure, psi							Each
Wd.	Lg., yd.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Specifications Met	Color		1-11	12-Up
PTFE with Nickel Filler
0.0035" Thick.
1/4"	14	1.4	10,000	10,000	-450° to 550°	1/2"	UL Listed C-UL Listed	Gray	00000000	00000	00000
3/8"	14	1.4	10,000	10,000	-450° to 550°	3/4"	UL Listed C-UL Listed	Gray	00000000	00000	0000
1/2"	14	1.4	10,000	10,000	-450° to 550°	1"	UL Listed C-UL Listed	Gray	00000000	00000	0000
3/4"	14	1.4	10,000	10,000	-450° to 550°	1 1/2"	UL Listed C-UL Listed	Gray	00000000	00000	00000
1"	14	1.4	10,000	10,000	-450° to 550°	2"	UL Listed C-UL Listed	Gray	00000000	00000	00000
0.004" Thick.
1/4"	14	1.9	10,500	11,500	-450° to 550°	6"	FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed	White	0000000	00000	00000
3/8"	14	1.9	10,500	11,500	-450° to 550°	6"	FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed	White	0000000	00000	00000
1/2"	14	1.9	10,500	11,500	-450° to 550°	6"	FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed	White	0000000	00000	00000
3/4"	14	1.9	10,500	11,500	-450° to 550°	6"	FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed	White	0000000	00000	00000
1"	14	1.9	10,500	11,500	-450° to 550°	6"	FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed	White	0000000	00000	00000
2"	14	1.9	10,500	11,500	-450° to 550°	6"	FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed	White	0000000	00000	00000

Choose-a-Color High-Density Thread Sealant Tape

Use color to identify water, gas, and chemical connections. This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.

Green tape is often used for oxygen.

Orange and yellow tape is commonly used to indicate fuel and gas.

Red tape is often used for water.

			Max. Pressure, psi							Each
Wd.	Lg., yd.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Specifications Met	Choose a Color		1-11	12-Up
PTFE
0.0032" Thick.
1/4"	14	1.2	10,000	10,000	-450° to 550°	1/2"	MIL-A-A-58092 Type II MIL-T-27730 UL Listed	Green, Orange, Red, Yellow	00000000	00000	00000
3/8"	14	1.2	10,000	10,000	-450° to 550°	3/4"	MIL-A-A-58092 Type II MIL-T-27730 UL Listed	Green, Orange, Red, Yellow	00000000	0000	0000
1/2"	14	1.2	10,000	10,000	-450° to 550°	1"	MIL-A-A-58092 Type II MIL-T-27730 UL Listed	Green, Orange, Red, Yellow	00000000	0000	0000
3/4"	14	1.2	10,000	10,000	-450° to 550°	1 1/2"	MIL-A-A-58092 Type II MIL-T-27730 UL Listed	Green, Orange, Red, Yellow	00000000	0000	0000
1"	14	1.2	10,000	10,000	-450° to 550°	2"	MIL-A-A-58092 Type II MIL-T-27730 UL Listed	Green, Orange, Red, Yellow	00000000	00000	0000
1 1/2"	14	1.2	10,000	10,000	-450° to 550°	3"	MIL-A-A-58092 Type II MIL-T-27730 UL Listed	Green, Orange, Red, Yellow	00000000	00000	00000
2"	14	1.2	10,000	10,000	-450° to 550°	4"	MIL-A-A-58092 Type II MIL-T-27730 UL Listed	Green, Orange, Red, Yellow	00000000	00000	00000

Thread Sealant Tape for Stainless Steel Threads

This tape is thicker to prevent seizing and galling associated with stainless steel threaded connections. It’s also good for use with other metals. This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.

			Max. Pressure, psi							Each
Wd.	Lg., ft.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Specifications Met	Color		1-11	12-Up
PTFE
0.0043" Thick.
1/4"	43	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	00000	00000
3/8"	43	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	0000	0000
1/2"	21	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	0000	0000
1/2"	50	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	00000	00000
3/4"	21	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	0000	0000
1"	21	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	0000	0000
1"	43	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	00000	00000
1 1/2"	43	1.05	10,000	2,000	-450° to 550°	1 1/2"	MIL-T-27730 UL Listed	Gray	0000000	00000	00000

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. It’s made of PTFE, so it has a slippery surface to keep threads from binding. This tape has a higher density than standard tape for a better seal between threads.

			Max. Pressure, psi
Wd.	Lg., ft.	Density, g/cm³	For Fluids	For Gases	Temp. Range, °F	For Max. Thread Dia.	Specifications Met	Color		Each
PTFE with Copper Filler
0.0045" Thick.
1/2"	50	1.6	10,000	300	-450° to 500°	1 1/2"	MIL-T-27730	Copper	0000000	000000
3/4"	50	1.6	10,000	300	-450° to 500°	4"	MIL-T-27730	Copper	0000000	00000

Compression Seal Tape

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

				Max. Pressure, psi
Lg., ft.	Thick.	Temp. Range, °F	Tensile Strength, psi	For Fluids	For Gases	Color	Specifications Met		Each
1" Wd.
Silicone Rubber
12	0.04"	-130° to 500°	1,200	150	150	Blue	UL 94 V-0	0000000	000000
2" Wd.
Silicone Rubber
12	0.04"	-130° to 500°	1,200	150	150	Blue	UL 94 V-0	0000000	00000

Strap Hangers

Cut as much strap as you need to hang duct, pipe, and other materials.

Perforated straps have mounting holes, so there’s no need for drilling. Straps that have two mounting-hole diameters have alternately spaced large and small mounting holes. Solid straps allow you to drill your own mounting holes.

Flexible hangers create custom-sized loop hangers when they’re wrapped around pipe and round duct.

Galvanized and zinc-plated steel straps have good corrosion resistance. Copper-plated steel straps resist corrosion when used with copper tubing. 304 stainless steel straps have excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Perforated

Flexible with Perforated Construction

			Mounting Hole		10 ft.		100 ft.
Gauge	Wd.	Thick.	Ctr.-to-Ctr.	Dia.		Each		Each
Flexible
Galvanized Steel
24	3/4"	1/32"	1/2"	1/8", 1/4"	0000000	00000	0000000	000000
20	3/4"	3/64"	1/2"	1/8", 1/4"	0000000	0000	0000000	00000
Copper-Plated Steel
24	3/4"	1/32"	1/2"	3/16", 1/4"	0000000	0000	0000000	00000
304 Stainless Steel
24	3/4"	1/32"	1/2"	3/16", 1/4"	0000000	00000	0000000	000000
20	3/4"	3/64"	1/2"	3/16", 1/4"	0000000	00000	0000000	000000

Solid

Flexible with Solid Construction

			10 ft.		100 ft.
Gauge	Wd.	Thick.		Each		Each
Flexible
Galvanized Steel
24	1"	1/32"	0000000	00000	0000000	000000
20	1"	3/64"	0000000	00000	0000000	00000
304 Stainless Steel
24	1"	1/32"	0000000	00000	0000000	000000
20	1"	3/64"	0000000	00000	0000000	000000

Hook-Mount Hangers

A versatile solution for temporary hanging of pipe and tubing at work sites as well as anywhere welding and fastening are not possible. Feed material through the strap, then use the D-rings to adjust the hanging height. Straps are polypropylene to prevent scratching on soft pipe and tubing. D-rings are galvanized steel for good corrosion resistance.

Hook		Strap					3 ft. Lg. Strap		6 ft. Lg. Strap
Opening Wd.	Ht.	Wd.	Thick.	Material	Color	Cap., lbs.		Each		Each
Galvanized Steel
3/4"	2 3/4"	1 1/2"	1/16"	Polypropylene Plastic	Orange	140	0000000	00000	0000000	00000

Water-Activated Fiberglass Repair Tape

When exposed to moisture, this resin-coated fiberglass tape becomes rock-hard in about 30 minutes. Use it for rigid, waterproof repairs. It works on metal, plastic, rubber, and fiberglass, and can be sanded and painted when dry. This tape can also be used to repair pipes.

Polyurethane Adhesive
Wd.	Lg., ft.	Overall Thick.	Facing Material	Temperature Range, °F	Max. Pressure, psi	Tensile Strength	Adhesion to Steel	Includes	Color		Each
1"	2 1/2	0.014"	Resin	45° to 600°	150	Not Rated	Not Rated	Plastic Gloves	Off-White	00000000	000000
2"	4	0.015"	Resin	0° to 400°	500	Not Rated	Not Rated	Epoxy Putty Stick, Plastic Gloves	White	00000000	00000
2"	5	0.014"	Resin	45° to 600°	150	Not Rated	Not Rated	Plastic Gloves	Off-White	00000000	00000
3"	9	0.014"	Resin	45° to 600°	150	Not Rated	Not Rated	Plastic Gloves	Off-White	00000000	00000
4"	15	0.014"	Resin	45° to 600°	150	Not Rated	Not Rated	Plastic Gloves	Off-White	00000000	00000

Dissolvable Repair Tape for Pipes

Create dams in pipes before welding, then wash away with water or steam. This tape leaves no residue behind.

Wd.	Lg., ft.	Overall Thick.	Material	Adhesive Type	Temperature Range, °F	Tensile Strength, lbs./in. wd.	Adhesion to Steel	Color		Each
1"	300	0.0062"	Paper	Acrylic	20° to 150°	20	Not Rated	White	000000	000000
2"	300	0.0062"	Paper	Acrylic	20° to 150°	20	Not Rated	White	000000	000000