Flexible Ceramic Insulation

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108 Products

About Selecting Thermal Insulation

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

Ceramic Fiber Insulation Sheets for Furnaces

The most common of our flexible high-temperature sheets, these are used to insulate furnaces. They also can be fabricated into gaskets. Insulation performs best at temperatures above 1,000° F.

Without Binder—Sheets without binder don’t have a binder that can burn when installed, so they won’t produce a strong odor. They’re often used to vacuum heat treat furnaces. However, they’re weaker and more brittle than sheets with a binder.

With Binder—Sheets with binder are stronger in structure, easier to cut, and more pliable than those without a binder. The binder will burn out at 350° and release gas with a strong odor, so only use them in applications where burnout is not an issue.

			Temperature
	Wd.	Lg., ft.	Min.	Max., ° F	Insulation R Value	Heat Flow Rate @ Temp.	Density, lb/ft³	Flexibility	Color	Flammability Rating		Each
Without Binder







				1/16" Thick

				6"	100	Not Rated	2,300	0.1	0.43 BTU/hr @ 800° F	9	Flexible	White	—	93285K31	0000000


				12"	50	Not Rated	2,300	0.1	0.43 BTU/hr @ 800° F	9	Flexible	White	—	93285K32	000000
				24"	25	Not Rated	2,300	0.1	0.43 BTU/hr @ 800° F	9	Flexible	White	—	93285K33	000000




						1/8" Thick

						12"	50	Not Rated	2,300	0.1	0.43 BTU/hr @ 800° F	9	Flexible	White	—	93285K34	000000


						24"	25	Not Rated	2,300	0.1	0.43 BTU/hr @ 800° F	9	Flexible	White	—	93285K35	000000




								1/4" Thick

								24"	20	Not Rated	2,150	0.3	0.75 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K51	00000


								24"	20	Not Rated	2,150	0.4	0.65 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K71	00000
								48"	20	-455° F	2,150	0.3	0.78 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K113	000000
								48"	20	-455° F	2,150	0.4	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K118	000000




										1/2" Thick

										24"	50	Not Rated	2,150	0.7	0.75 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K82	000000


										24"	50	Not Rated	2,150	0.8	0.65 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K92	000000
										48"	50	-455° F	2,150	0.5	0.96 BTU/hr @ 800° F	4	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K109	000000
										48"	50	-455° F	2,150	0.6	0.78 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K114	000000
										48"	50	-455° F	2,150	0.7	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K119	000000




												1" Thick

												24"	25	-455° F	2,400	1.3	0.78 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K101	000000


												24"	25	-455° F	2,400	1.4	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K104	000000
												24"	25	Not Rated	2,150	1	1 BTU/hr @ 800° F	4	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K34	00000
												24"	25	Not Rated	2,150	1.3	0.75 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K54	000000
												24"	25	Not Rated	2,150	1.5	0.65 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K74	000000
												48"	25	-455° F	2,150	1	0.96 BTU/hr @ 800° F	4	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K111	000000
												48"	25	-455° F	2,150	1.3	0.78 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K115	000000
48"												25	-455° F	2,150	1.4	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K121	000000
48"	25											-455° F	2,400	1.4	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K105	000000




		1 1/2" Thick

		24"	15									-455° F	2,400	2.1	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K106	000000


		24"	15									Not Rated	2,150	1.5	1 BTU/hr @ 800° F	4	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K16	00000
		24"	15									Not Rated	2,150	2	0.75 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K86	000000
		24"	15									Not Rated	2,150	2.3	0.65 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K96	000000
		48"	15									-455° F	2,150	1.9	0.78 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K116	000000
		48"	15									-455° F	2,150	2.1	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K122	000000




				2" Thick

				24"	12 1/2							-455° F	2,400	2.9	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K107	000000


				24"	12 1/2							Not Rated	2,150	2	1 BTU/hr @ 800° F	4	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K18	00000
				24"	12 1/2							Not Rated	2,150	2.7	0.75 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K88	000000
				24"	12 1/2							Not Rated	2,150	3.1	0.65 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K98	000000
				48"	12 1/2	-455° F						2,150	2.6	0.78 BTU/hr @ 800° F	6	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K117	000000
				48"	12 1/2	-455° F	2,150					2.9	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K123	000000
				48"	12 1/2	-455° F	2,400					2.9	0.7 BTU/hr @ 800° F	8	Flexible	White	UL 723 0/0 for Flame and Smoke	93315K108	000000


				With Binder







								1/16" Thick

								6"	100			-425° F	2,300	0.1	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K22	000000


								12"	50			-425° F	2,300	0.1	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K24	000000
								24"	25			-425° F	2,300	0.1	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K26	000000




												1/8" Thick

												6"	20	-425° F	2,300	0.2	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K12	00000


										6"	100	-425° F	2,300	0.2	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K42	000000
										12"	10	-425° F	2,300	0.2	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K15	00000
										12"	50	-425° F	2,300	0.2	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K44	000000
										24"	5	-425° F	2,300	0.2	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K18	00000
										24"	25	-425° F	2,300	0.2	0.71 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K46	000000




												1/4" Thick

6"												100	-425° F	2,300	0.4	0.57 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K62	000000


12"	50											-425° F	2,300	0.4	0.57 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K64	000000
24"	25											-425° F	2,300	0.4	0.57 BTU/hr @ 800° F	7.5	Flexible	White	—	93285K66	000000

Ultra-High-Temperature Ceramic Fiber Pipe Insulation Strips

Withstands the highest temperatures of all our pipe insulation. Made of ceramic fiber, this insulation won't melt, sag, or degrade in extreme heat. It's often used in ovens, furnaces, steel mills, and other demanding environments.

Alkaline Earth Silicate Ceramic Fiber with Foil Jacket—Withstands temperatures up to 2100° F. A foil jacket protects against dirt, dust, moisture, and minor scuffs. Its surface also reflects heat to keep temperature loss from pipes to a minimum.

Calcium Aluminum Silicate Ceramic Fiber—Strong and durable, this insulation stays in place for many years without degrading.

Ceramic Alumina Fiber—Handles higher heat and keeps the temperature of your line steadier than our other ceramic fiber insulation. It's ideal for your hottest applications, such as steam reformers and furnace piping.

Adhesive Backing—Install insulation without having to hold it in place—simply position and secure it using band clamps or other components of the assembly. Apply while cool. Heat above 400° F starts to weaken the adhesive, but the insulation's temperature rating remains unaffected.

							Plain Backing			Adhesive Backing
	Wd.	Max. Temp., ° F	Insulation R Value	Heat Flow Rate @ Temp.	Density, lb/ft³	Flexibility	Lg., ft.		Each	Lg., ft.		Each
Alkaline Earth Silicate Ceramic Fiber with Foil Jacket







				1/4" Thick

				1"	2,100	0.3	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K13	000000	—	———	0


				2"	2,100	0.3	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K14	00000	—	———	0
				3"	2,100	0.3	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K15	00000	—	———	0
				6"	2,100	0.3	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K16	00000	—	———	0
				12"	2,100	0.3	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K17	00000	—	———	0




						1/2" Thick

						1"	2,100	0.7	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K91	00000	—	———	0


						2"	2,100	0.7	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K92	00000	—	———	0
						3"	2,100	0.7	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K93	00000	—	———	0
						6"	2,100	0.7	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K11	00000	—	———	0
						12"	2,100	0.7	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K12	00000	—	———	0




								1" Thick

								1"	2,100	1	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K18	00000	—	———	0


								2"	2,100	1	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K19	00000	—	———	0
								3"	2,100	1	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K21	00000	—	———	0
								6"	2,100	1	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K22	00000	—	———	0
								12"	2,100	1	0.73 BTU/hr @ 800° F	8	Flexible	12	9379K23	00000	—	———	0


								Calcium Aluminum Silicate Ceramic Fiber







												1/32" Thick

												1"	1,500	0.04	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K1	000000


												1 1/2"	1,500	0.04	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K21	00000
												2"	1,500	0.04	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K4	00000
												2 1/2"	1,500	0.04	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K22	00000
												3"	1,500	0.04	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K7	00000




	1/16" Thick

	1"												1,500	0.08	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K2	00000


	1 1/2"	1,500											0.08	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K23	00000
	2"	1,500	0.08										0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K5	00000
	2 1/2"	1,500	0.08										0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K24	00000
	3"	1,500	0.08										0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K8	00000




			1/8" Thick

			1"										1,500	0.2	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K3	00000


			2"										1,500	0.2	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K6	00000
			3"	1,500									0.2	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K9	000000




					1/4" Thick

					1"								1,500	0.3	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K14	000000


					2"								1,500	0.3	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K15	000000
					3"								1,500	0.3	0.82 BTU/hr @ 800° F	35	Flexible	—	———	0	25	4057K16	000000


					Ceramic Alumina Fiber







														1/32" Thick

														1"	2,300	0.07	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K81	00000	—	———	0


														2"	2,300	0.07	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K82	00000	—	———	0
														2 1/2"	2,300	0.07	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K35	00000	—	———	0
								3"						2,300	0.07	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K83	00000	—	———	0




										1/16" Thick

										1"	2,300			0.1	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K84	00000	—	———	0


										1 1/2"	2,300			0.1	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K36	00000	—	———	0
										2"	2,300			0.1	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K85	00000	—	———	0
										2 1/2"	2,300			0.1	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K37	00000	—	———	0
										3"	2,300			0.1	0.48 BTU/hr @ 800° F	12	Flexible	50	87575K86	00000	—	———	0




											1/8" Thick

											1"	2,300		0.3	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K87	00000	50	87575K23	000000


											1 1/2"	2,300		0.3	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K38	00000	50	87575K24	000000
											2"	2,300		0.3	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K88	00000	50	87575K25	000000
											2 1/2"	2,300		0.3	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K39	00000	—	———	0
											3"	2,300		0.3	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K89	00000	50	87575K26	000000




											1/4" Thick

											1"	2,300		0.5	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K32	000000	62 1/2	87575K27	000000


											2"	2,300		0.5	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K33	000000	—	———	0
											3"	2,300		0.5	0.48 BTU/hr @ 800° F	12	Flexible	25	87575K34	000000	—	———	0

Ceramic Weld-Backing Tape

For welding large gaps, these strips form a rigid mold for your weld. They contain spatter and protect your weld from weakening from oxygen, water vapor, and other gases.

Flat Center Strip

Ctr. Strip			Overall
Wd.	Thk.	For Max. Current, amp	Wd.	Lg., ft.	Material	Max. Temp., ° F	Adhesive Material	Welding Process	Pkg. Qty.		Pkg.
1 1/16"	0.32"	240	1 1/16"	2	Aluminum	450	Acrylic Plastic	MIG, TIG	5	4688N11	000000

Round Center Strip

		Overall
Ctr. Strip Dia.	For Max. Current, amp	Wd.	Lg., ft.	Material	Max. Temp., ° F	Adhesive Material	Welding Process	Pkg. Qty.		Pkg.
5/16"	240	5/16"	2	Aluminum	450	Acrylic Plastic	MIG, TIG	5	4688N15	000000
3/8"	240	5/16"	2	Aluminum	450	Acrylic Plastic	MIG, TIG	5	4688N17	00000
7/16"	240	7/16"	2	Aluminum	450	Acrylic Plastic	MIG, TIG	5	4688N16	00000

Grooved Center Strip

	Ctr. Strip			Overall
Groove Wd.	Wd.	Thk.	For Max. Current, amp	Wd.	Lg., ft.	Material	Max. Temp., ° F	Adhesive Material	Welding Process	Pkg. Qty.		Pkg.
3/16"	1"	0.32"	240	1"	2	Aluminum	450	Acrylic Plastic	MIG, TIG	5	4688N12	000000
5/16"	1 1/16"	0.32"	240	1 1/16"	2	Aluminum	450	Acrylic Plastic	MIG, TIG	5	4688N13	00000
7/16"	1"	0.32"	240	1"	2	Aluminum	450	Acrylic Plastic	MIG, TIG	5	4688N14	00000