ASJ Insulation | McMaster-Carr

Filter by

Pipe Size

Wall Thickness

Maximum Temperature

Material

Color

For Use On

Minimum Temperature

Flexibility

Shape

Thickness

Performance

Highly Thermally Insulating

Length

Copper Tube Size

Insulation R Value

Heat Flow Rate @ Temperature

0.23 BTU/hr @ 75° F

0.27 BTU/hr @ 75° F

0.32 BTU/hr @ 75° F

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

RoHS

Compliant

Not Compliant

Export Control Classification Number (ECCN)

REACH

Density

Maximum Jacket Temperature

Width

Minimum Jacket Temperature

116 Products

About Selecting Thermal Insulation

Compare R-value and temperature range to find the insulation material that best suits your application.

Fiberglass Pipe Insulation

When foam can't handle the heat, go with fiberglass insulation. It withstands temperatures hundreds of degrees hotter than rubber or polyethylene foam, so it's often used on hot water supply and steam lines.

Slit Tubes

Kraft Paper Jacket

Ready to fit over straight pipe sections. Just pull open the insulation, snap it around your pipe, and seal it closed with the adhesive strip.

Kraft Paper Jacket— A lightweight jacket shields insulation from dust, minor scratches, and wear during handling.

Insulation Tapes—Wrap around pipe insulation for a tighter seal.

	Pipe Insulation											Insulation Tapes
	ID	For Pipe Size	For Copper Tube Size	Lg., ft.	Temp. Range, ° F	Insulation R Value	Heat Flow Rate @ Temp.	Density, lb/ft³	Flexibility		Each		Each
Kraft Paper Jacket







				1/2" Thick Wall

				5/8"	3/8	1/2	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K26	00000	76755A67	000000


				7/8"	1/2	3/4	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K11	0000	76755A67	00000
				1 1/8"	3/4	1	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K12	0000	76755A67	00000
				1 3/8"	1	1 1/4	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K13	0000	76755A67	00000
				1 5/8"	1 1/4	1 1/2	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K14	0000	76755A67	00000
				1 7/8"	1 1/2	—	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K15	0000	76755A67	00000
				2 1/8"	—	2	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K27	0000	76755A67	00000
				2 3/8"	2	—	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K16	0000	76755A67	00000
				2 5/8"	—	2 1/2	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K28	0000	76755A67	00000
				2 7/8"	2 1/2	—	3	0 to 850	2.2	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K17	0000	76755A67	00000




						1" Thick Wall

						5/8"	3/8	1/2	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K56	0000	76755A67	00000


						7/8"	1/2	3/4	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K31	0000	76755A67	00000
						1 1/8"	3/4	1	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K32	0000	76755A67	00000
						1 3/8"	1	1 1/4	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K33	0000	76755A67	00000
						1 5/8"	1 1/4	1 1/2	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K34	0000	76755A67	00000
						1 7/8"	1 1/2	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K35	0000	76755A67	00000
						2 1/8"	—	2	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K57	00000	76755A67	00000
						2 3/8"	2	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K36	00000	76755A67	00000
						2 5/8"	—	2 1/2	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K58	00000	76755A67	00000
						2 7/8"	2 1/2	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K37	00000	76755A67	00000
						3 1/2"	3	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K38	00000	76755A67	00000


						4 1/2"	4	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K39	00000	76755A67	00000
						5 1/2"	5	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K51	00000	76755A67	00000
						6 5/8"	6	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K52	00000	76755A67	00000
						8 5/8"	8	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K53	00000	76755A67	00000
						10 3/4"	10	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K54	00000	76755A67	00000
						12 3/4"	12	—	3	0 to 850	4.3	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K55	00000	76755A67	00000




								1 1/2" Thick Wall

								5/8"	3/8	1/2	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K66	00000	76755A67	00000


								7/8"	1/2	3/4	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K41	00000	76755A67	00000
								1 1/8"	3/4	1	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K42	00000	76755A67	00000
								1 3/8"	1	1 1/4	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K43	00000	76755A67	00000
								1 5/8"	1 1/4	1 1/2	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K44	00000	76755A67	00000
								1 7/8"	1 1/2	—	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K45	00000	76755A67	00000
								2 1/8"	—	2	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K67	00000	76755A67	00000
								2 3/8"	2	—	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K46	00000	76755A67	00000
2 5/8"								—	2 1/2	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K68	00000	76755A67	00000
2 7/8"	2 1/2							—	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K47	00000	76755A67	00000
3 1/2"	3							—	3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K48	00000	76755A67	00000


4 1/2"	4	—						3	0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K49	00000	76755A67	00000
5 1/2"	5	—	3					0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K61	00000	76755A67	00000
6 5/8"	6	—	3					0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K62	00000	76755A67	00000
8 5/8"	8	—	3					0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K63	00000	76755A67	00000
10 3/4"	10	—	3					0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K64	00000	76755A67	00000
12 3/4"	12	—	3					0 to 850	6.5	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K65	00000	76755A67	00000




		2" Thick Wall

		7/8"	1/2					3/4	3	0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K71	00000	76755A67	00000


		1 1/8"	3/4					1	3	0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K72	00000	76755A67	00000
		1 3/8"	1					1 1/4	3	0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K73	00000	76755A67	00000
		1 5/8"	1 1/4					1 1/2	3	0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K74	00000	76755A67	00000
		1 7/8"	1 1/2					—	3	0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K75	00000	76755A67	00000
		2 1/8"	—	2				3	0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K87	00000	76755A67	00000
		2 3/8"	2	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K76	00000	76755A67	00000
		2 5/8"	—	2 1/2	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K88	00000	76755A67	00000
		2 7/8"	2 1/2	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K77	00000	76755A67	00000
		3 1/2"	3	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K78	00000	76755A67	00000
		4 1/2"	4	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K79	00000	76755A67	00000


		5 1/2"	5	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K81	00000	76755A67	00000
		6 5/8"	6	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K82	00000	76755A67	00000
		8 5/8"	8	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K83	00000	76755A67	00000
		10 3/4"	10	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K84	00000	76755A67	00000
		12 3/4"	12	—	3			0 to 850	8.7	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K85	00000	76755A67	00000




				3" Thick Wall

				1 3/8"	1			1 1/4	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K414	00000	76755A67	00000


				1 5/8"	1 1/4			1 1/2	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K415	00000	76755A67	00000
				1 7/8"	1 1/2			—	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K416	00000	76755A67	00000
				2 3/8"	2			—	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K417	00000	76755A67	00000
				2 5/8"	—			2 1/2	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K431	00000	76755A67	00000
				2 7/8"	2 1/2			—	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K418	00000	76755A67	00000
				3 1/2"	3			—	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K419	00000	76755A67	00000
				4 1/2"	4	—		3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K422	00000	76755A67	00000
				5 1/2"	5	—	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K424	00000	76755A67	00000
				6 5/8"	6	—	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K425	00000	76755A67	00000
				8 5/8"	8	—	3	0 to 850	13	0.23 BTU/hr @ 75° F	4.5	Rigid	5556K427	00000	76755A67	00000

Lightweight Melamine Foam Pipe Insulation

Our lightest pipe insulation, it's often used on overhead pipe or long runs to avoid overloading supports.

Slit Tubes

Ready to fit over straight pipe sections. Just pull open the insulation, snap it around your pipe, and seal it closed with the adhesive strip.

Sealants—Close gaps, seams, joints, and punctures in your insulation.

Insulation Tapes—Wrap around pipe insulation for a tighter seal.

	Pipe Insulation											Sealants		Insulation Tapes
	ID	For Pipe Size	For Copper Tube Size	Lg., ft.	Temp. Range, ° F	Insulation R Value	Heat Flow Rate @ Temp.	Density, lb/ft³	Flexibility		Each		Each		Each
Kraft Paper Jacket







				1/2" Thick Wall

				1/2"	1/4	3/8	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K111	000000	7587A33	000000	45325K66	000000


				5/8"	3/8	1/2	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K112	00000	7587A33	00000	45325K66	00000
				3/4"	—	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K113	00000	7587A33	00000	45325K66	00000
				7/8"	1/2	3/4	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K114	00000	7587A33	00000	45325K66	00000
				1"	—	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K115	00000	7587A33	00000	45325K66	00000
				1 1/8"	3/4	1	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K116	00000	7587A33	00000	45325K66	00000
				1 3/8"	1	1 1/4	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K117	00000	7587A33	00000	45325K66	00000
				1 1/2"	—	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K118	00000	7587A33	00000	45325K66	00000
				1 5/8"	1 1/4	1 1/2	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K119	00000	7587A33	00000	45325K66	00000
				1 7/8"	1 1/2	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K121	00000	7587A33	00000	45325K66	00000
				2"	—	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K122	00000	7587A33	00000	45325K66	00000


				2 3/8"	2	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K123	00000	7587A33	00000	45325K66	00000
				2 1/2"	—	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K124	00000	7587A33	00000	45325K66	00000
				3"	—	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K125	00000	7587A33	00000	45325K66	00000
				4"	3 1/2	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K126	00000	7587A33	00000	45325K66	00000
				4 1/2"	4	—	4	-40 to 350	3	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K127	00000	7587A33	00000	45325K66	00000




						1" Thick Wall

						1/2"	1/4	3/8	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K11	00000	7587A33	00000	45325K66	00000


						5/8"	3/8	1/2	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K12	00000	7587A33	00000	45325K66	00000
						3/4"	—	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K13	00000	7587A33	00000	45325K66	00000
						7/8"	1/2	3/4	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K14	00000	7587A33	00000	45325K66	00000
						1"	—	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K15	00000	7587A33	00000	45325K66	00000
						1 1/8"	3/4	1	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K16	00000	7587A33	00000	45325K66	00000
						1 3/8"	1	1 1/4	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K17	00000	7587A33	00000	45325K66	00000
						1 1/2"	—	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K18	00000	7587A33	00000	45325K66	00000
						1 5/8"	1 1/4	1 1/2	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K19	00000	7587A33	00000	45325K66	00000
						1 7/8"	1 1/2	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K21	00000	7587A33	00000	45325K66	00000
						2"	—	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K22	00000	7587A33	00000	45325K66	00000


						2 3/8"	2	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K24	00000	7587A33	00000	45325K66	00000
						2 1/2"	—	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K25	00000	7587A33	00000	45325K66	00000
						3"	—	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K28	00000	7587A33	00000	45325K66	00000
						4"	3 1/2	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K93	000000	7587A33	00000	45325K66	00000
						4 1/2"	4	—	4	-40 to 350	7.4	0.27 BTU/hr @ 75° F	0.44	Rigid	93495K95	000000	7587A33	00000	45325K66	00000

Fiberglass Insulation Sheets and Strips for Buildings

Also known as batts, these fiberglass sheets and strips are used to insulate walls, ceilings, and floors.

Sheets with Kraft Paper Facing

Sheets and strips with kraft paper facing can be layered to increase thermal efficiency.

Thk.	Wd.	Lg., ft.	Insulation R Value	Flexibility	Heat Flow Rate @ Temp.	Density, lb/ft³	Color	Pkg. Qty.		Pkg.
3 1/2"	15"	8	11	Flexible	0.32 BTU/hr @ 75° F	0.8	Brown	13	95195K72	000000

Tape

		Each
Reinforced Insulation Tape	76755A67	000000

Rigid Fiberglass Insulation Sheets for Ducts

Kraft Paper Facing

Insulate rectangular ductwork.

Kraft Paper Facing—To seal sheets with kraft paper facing, use reinforced insulation tape (sold separately).

										Facing		Kraft Paper Facing
	Thk.	Wd.	Lg., ft.	Insulation R Value	Flexibility	Temp. Range, ° F	Heat Flow Rate @ Temp.	Color	Flammability Rating	Temperature, ° F	Color		Each
3 lb/ft³ Density



		1"	24"	4	4.3	Rigid	0 to 450	0.23 BTU/hr @ 75° F	Yellow	ASTM E84 25/50 for Flame and Smoke	0 to 150	White	9350K4	000000


		1 1/2"	24"	4	6.5	Rigid	0 to 450	0.23 BTU/hr @ 75° F	Yellow	ASTM E84 25/50 for Flame and Smoke	0 to 150	White	9350K5	00000
		2"	24"	4	8.7	Rigid	0 to 450	0.23 BTU/hr @ 75° F	Yellow	ASTM E84 25/50 for Flame and Smoke	0 to 150	White	9350K6	00000


		6 lb/ft³ Density



				1 1/2"	24"	4	6.5	Rigid	0 to 450	0.23 BTU/hr @ 75° F	Yellow	ASTM E84 25/50 for Flame and Smoke	0 to 150	White	9351K5	00000


				2"	24"	4	8.7	Rigid	0 to 450	0.23 BTU/hr @ 75° F	Yellow	ASTM E84 25/50 for Flame and Smoke	0 to 150	White	9351K6	00000

Tape

		Each
Reinforced HVAC Tape With Paper Liner and Foil Facing	76145A19	000000
Reinforced Insulation Tape	76755A67	00000

Fiberglass Pipe Insulation Sheets

Kraft Paper Jacket

Cut custom shapes to fit pipe that runs hundreds of degrees hotter than rubber and polyethylene foam insulation can handle. They're often used near hot water supply and steam lines.

Kraft Paper Jacket— A lightweight jacket shields insulation from dust, minor scratches, and wear during handling.

Insulation Tapes—Wrap around pipe insulation to seal shut.

	Pipe Insulation										Insulation Tapes
									Plain Backing
	Thk.	Wd.	Lg., ft.	Temp. Range, ° F	Insulation R Value	Heat Flow Rate @ Temp.	Density, lb/ft³	Flexibility		Each		Each
Kraft Paper Jacket



		1"	36"	20	-60 to 450	3.7	0.27 BTU/hr @ 75° F	3	Flexible	9333K91	0000000	76755A67	000000


		1 1/2"	36"	20	-60 to 450	5.6	0.27 BTU/hr @ 75° F	3	Flexible	9333K93	000000	76755A67	00000
		2"	36"	20	-60 to 450	7.4	0.27 BTU/hr @ 75° F	3	Flexible	9333K95	000000	76755A67	00000