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High-Temperature Electrical-Insulating Tube Sleeving

This sleeving withstands temperatures up to 390° F and is often used to insulate connections in transformers, relays, and solenoids. It prevents electricity and heat from dissipating from wire and cable. When exposed to flame, it will self-extinguish and produce a nonconductive ash. It’s flame rated VW-1 to meet requirements for preventing the spread of flames based on a timed test with vertically suspended material. Made of silicone-coated fiberglass, it resists chemicals.
ID | For Wire Gauge | For Wire Size | Wall Thick. | For Max. Voltage | Temperature Range, °F | Specifications Met | Choose a Color | 5 ft. | 10 ft. | 25 ft. | 50 ft. | |
Fiberglass Fabric with Silicone Rubber Coating | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Black and White | ||||||||||||
0.09" | 12 | 3/8" | 0.02" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.11" | 10 | 3/8" | 0.02" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.12" | 9 | 3/8" | 0.02" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.13" | 8 | 3/8" | 0.02" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.17" | 6 | 3/8" | 0.02" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.21" | 4 | 3/8" | 0.02" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.26" | 2 | 3/8" | 0.02" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.33" | 1/0 | 3/8" | 0.03" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.39" | __ | 3/8" | 0.03" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.45" | __ | 7/16" | 0.03" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.51" | __ | 1/2" | 0.03" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.64" | __ | 5/8" | 0.03" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 | |||||
0.77" | __ | 3/4" | 0.03" | 7,000V AC | -90° to 390° | CSA Certified, Flame Rated VW-1, UL Recognized Component | 0000000 |
Per Ft. | |||||||
---|---|---|---|---|---|---|---|
ID | Wall Thick. | For Max. Voltage | Temperature Range, °F | Lengths, ft. | 1-49 | 50-Up | |
Fiberglass Fabric with Silicone Rubber Coating | |||||||
Blue | |||||||
0.5" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 00000 | 00000 | |
0.75" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 0000 | 0000 | |
1" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 0000 | 0000 | |
1.25" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 0000 | 0000 | |
1.5" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 00000 | 0000 | |
1.75" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 00000 | 0000 | |
2" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 00000 | 00000 | |
2.5" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 00000 | 00000 | |
3" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 00000 | 00000 | |
3.5" | 7/32" | 8,000V AC | -65° to 500° | 0000000 | 00000 | 00000 |
Expandable Electrical-Insulating Tube Sleeving

A specially formulated silicone rubber coating allows this fiberglass sleeving to stretch over items during installation; it then tightens around its contents for a secure fit. Often used in motors, generators, and transformers, it prevents electricity and heat from dissipating from wire and cable. It has good chemical resistance.
ID | For Wire Gauge | For Wire Size | Wall Thick. | For Max. Voltage | Temperature Range, °F | Specifications Met | Choose a Color | 5 ft. | 10 ft. | 25 ft. | 50 ft. | |
Fiberglass Fabric with Silicone Rubber Coating | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
0.08" | 13 | __ | 0.02" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.12" | 9 | __ | 0.02" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.17" | 6 | __ | 0.02" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.23" | 3 | __ | 0.02" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.33" | 1/0 | __ | 0.03" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.39" | __ | 3/8" | 0.03" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.51" | __ | 1/2" | 0.03" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.64" | __ | 5/8" | 0.03" | 7,000V AC | -65° to 390° | UL Recognized Component | 0000000 | |||||
0.77" | __ | 3/4" | 0.03" | 7,000V AC | -65° to 390° | UL Recognized Component | Black | 00000000 |
Electrical-Insulating Tube Sleeving

Add a layer of insulation to prevent electricity and heat from dissipating from wire and cable. This sleeving is often used in motors, transformers, and generators. Made of coated fiberglass, it resists abrasion, acids, alkalies, and chemicals.
Acrylic-coated sleeving is more flexible than vinyl-coated sleeving, so it bends around tight corners. It resists solvents and oil.
Vinyl-coated sleeving resists wax and alcohol. Sleeving is flame-rated VW-1 to meet requirements for preventing the spread of flames based on a timed test with vertically suspended material.
ID | For Wire Gauge | For Wire Size | Wall Thick. | For Max. Voltage | Temperature Range, °F | Specifications Met | Color | 3 ft. | 25 ft. | 50 ft. | |
Fiberglass Fabric with Acrylic Plastic Coating | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
0.09" | 12 | __ | 0.02" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.11" | 10 | __ | 0.02" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.12" | 9 | __ | 0.02" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.13" | 8 | __ | 0.02" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.17" | 6 | __ | 0.02" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.21" | 4 | __ | 0.03" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.26" | 2 | __ | 0.03" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.33" | 1/0 | __ | 0.03" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.38" | __ | 3/8" | 0.03" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.44" | __ | 7/16" | 0.03" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.5" | __ | 1/2" | 0.03" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.63" | __ | 5/8" | 0.03" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
0.75" | __ | 3/4" | 0.04" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 | |||
1" | __ | 1" | 0.04" | 7,000V AC | -10° to 310° | UL Recognized Component, CSA Certified | Beige | 0000000 |
ID | For Wire Gauge | For Wire Size | Wall Thick. | For Max. Voltage | Temperature Range, °F | Specifications Met | Color | 5 ft. | 10 ft. | 25 ft. | 50 ft. | |
Fiberglass Fabric with Vinyl Plastic Coating | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
0.09" | 12 | __ | 0.02" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.11" | 10 | __ | 0.02" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.12" | 9 | __ | 0.02" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.13" | 8 | __ | 0.02" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.17" | 6 | __ | 0.02" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.21" | 4 | __ | 0.02" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.26" | 2 | __ | 0.02" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.33" | 1/0 | __ | 0.03" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.39" | 1/0 | 3/8" | 0.03" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.45" | 1/0 | 7/16" | 0.03" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.51" | 1/0 | 1/2" | 0.03" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.64" | 1/0 | 5/8" | 0.03" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
0.77" | 1/0 | 3/4" | 0.03" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 | ||||
1.02" | 1/0 | 1" | 0.03" | 7,000V AC | 0° to 265° | UL Recognized Component, CSA Certified, Flame Rated VW-1 | Black | 0000000 |
High-Strength Sleeving

This sleeving has excellent tear resistance and better abrasion resistance than standard polyester sleeving. Made of Nomex fabric, it resists most acids and alkalies, alcohol, hydraulic fluid, oil, gasoline, salt water, and solvents. It won’t irritate skin like fiberglass, so it’s easier to handle. Because this sleeving is non-expandable, it does not stretch, so it’s best for applications where you know the exact diameter of the items you need to protect.
Per Ft. | |||||||
---|---|---|---|---|---|---|---|
ID | Wall Thick. | Temperature Range, °F | Color | Length, ft. | 1-99 | 100-Up | |
Nomex Fabric | |||||||
1/4" | 1/16" | -320° to 400° | White | 0000000 | 00000 | 00000 | |
3/8" | 1/16" | -320° to 400° | White | 0000000 | 0000 | 0000 | |
1/2" | 1/16" | -320° to 400° | White | 0000000 | 0000 | 0000 | |
5/8" | 1/16" | -320° to 400° | White | 0000000 | 0000 | 0000 | |
3/4" | 1/16" | -320° to 400° | White | 0000000 | 0000 | 0000 | |
1" | 1/16" | -320° to 400° | White | 0000000 | 0000 | 0000 | |
1 1/4" | 1/16" | -320° to 400° | White | 0000000 | 0000 | 0000 | |
1 1/2" | 1/16" | -320° to 400° | White | 0000000 | 00000 | 0000 | |
1 3/4" | 1/16" | -320° to 400° | White | 0000000 | 00000 | 00000 | |
1 7/8" | 1/16" | -320° to 400° | White | 0000000 | 00000 | 00000 | |
2" | 1/16" | -320° to 400° | White | 0000000 | 00000 | 00000 |
Spark-Resistant Wrap-Around Sleeving

A specially formulated silicone rubber coats this fiberglass sleeving to shed sparks, molten metal splash, hydraulic fuel, and lubricating oil. Wrap it around wire, cable, and hose without disconnecting them. It has a slit along the entire length and a strip of hook-and-loop that keeps it securely closed but allows you to maintain access along the length of the sleeving.
ID | Wall Thick. | Temperature Range, °F | Color | Lengths, ft. | Per Ft. | |
Fiberglass Fabric with Silicone Rubber Coating | ||||||
---|---|---|---|---|---|---|
7/8" | 5/32" | -65° to 500° | Orange | 0000000 | 000000 | |
1" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
1 1/4" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
1 1/2" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
1 3/4" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
2" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
2 1/4" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
2 1/2" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
3" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 | |
3 1/2" | 5/32" | -65° to 500° | Orange | 0000000 | 00000 |
Heat-Reflective Wrap-Around Sleeving

Made of aluminum with a fiberglass liner, this sleeving reflects heat away from contents and withstands temperatures up to 390° F to protect against internal and external heat sources. It resists chemicals and fluids. Wrap it around wire, cable, and hose without disconnecting them. The slit along the entire length permanently seals with an adhesive strip. It meets ASTM D350 requirements for self-extinguishing material.
3 ft. Lg. | |||||
---|---|---|---|---|---|
ID | Wall Thick. | Temperature Range, °F | Specifications Met | Each | |
Aluminum with Fiberglass Fabric Liner | |||||
1/4" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 000000 |
5/16" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
3/8" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
1/2" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
5/8" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
3/4" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
1" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
1 1/8" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
1 1/4" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
1 1/2" | 1/32" | -40° to 390° | ASTM D350 | 0000000 | 00000 |
Corrugated Sleeving

Slide this sleeving over wire, cable, or hose before adding connectors or making electrical connections. The corrugated construction gives it impact and abrasion resistance similar to conduit, but with more flexibility. It’s ultra-flexible so it’s good for applications that require tight turns.
Steel sleeving is more impact resistant than stainless steel, so it’s better for use in high traffic areas.
Stainless steel sleeving is more corrosion resistant than steel and withstands higher temperatures.
ID | OD | Temperature Range, °F | Lengths, ft. | Per Ft. | |
Steel | |||||
---|---|---|---|---|---|
5/32" | 1/4" | -40° to 450° | 00000000 | 00000 | |
3/16" | 9/32" | -40° to 450° | 00000000 | 0000 | |
7/32" | 5/16" | -40° to 450° | 00000000 | 0000 | |
1/4" | 11/32" | -40° to 450° | 00000000 | 0000 | |
5/16" | 13/32" | -40° to 450° | 00000000 | 0000 | |
3/8" | 1/2" | -40° to 450° | 00000000 | 0000 | |
1/2" | 5/8" | -40° to 450° | 00000000 | 0000 | |
3/4" | 31/32" | -40° to 450° | 00000000 | 0000 | |
Stainless Steel | |||||
5/32" | 1/4" | -420° to 1600° | 00000000 | 0000 | |
3/16" | 9/32" | -420° to 1600° | 00000000 | 0000 | |
7/32" | 5/16" | -420° to 1600° | 00000000 | 0000 | |
1/4" | 11/32" | -420° to 1600° | 00000000 | 0000 | |
5/16" | 13/32" | -420° to 1600° | 00000000 | 0000 | |
3/8" | 1/2" | -420° to 1600° | 00000000 | 0000 | |
1/2" | 5/8" | -420° to 1600° | 00000000 | 0000 | |
3/4" | 31/32" | -420° to 1600° | 00000000 | 0000 |
Thermocouple Insulating Sleeves



Protect thermocouple wire exposed to air in forging, die casting, heat treating, and other extreme-temperature applications. Use multiple sleeves to insulate longer wire. No sealant or epoxy is needed for joining them.
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | ID | Lg. | Shape | Max. Temperature, °F | Material | Pkg. | |
2 Bores | |||||||
---|---|---|---|---|---|---|---|
20 | 0.060" | 1" | Oval | 2250° | Cordierite | 0000000 | 000000 |
14 | 0.080" | 1" | Round | 2250° | Cordierite | 0000000 | 0000 |
14 | 0.080" | 1" | Oval | 2250° | Cordierite | 0000000 | 0000 |
14 | 0.080" | 3" | Oval | 2250° | Cordierite | 0000000 | 00000 |
11 | 0.110" | 1" | Oval | 2250° | Cordierite | 0000000 | 0000 |
11 | 0.110" | 3" | Oval | 2250° | Cordierite | 0000000 | 00000 |
8 | 0.171" | 1" | Round | 2250° | Cordierite | 0000000 | 0000 |
8 | 0.171" | 1" | Oval | 2250° | Cordierite | 0000000 | 0000 |
8 | 0.171" | 3" | Round | 2250° | Cordierite | 0000000 | 00000 |
8 | 0.171" | 3" | Oval | 2250° | Cordierite | 0000000 | 00000 |
Each | |||||||
4 Bores | |||||||
24 | 0.040" | 12" | Round | 3400° | Alumina | 0000000 | 00000 |
24 | 0.040" | 18" | Round | 3400° | Alumina | 0000000 | 00000 |
24 | 0.040" | 24" | Round | 3400° | Alumina | 0000000 | 00000 |
24 | 0.040" | 30" | Round | 3400° | Alumina | 0000000 | 00000 |