Silicone Sleeving | McMaster-Carr

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376 Products

Sleeves

High-Temperature
Electrical-Insulating Tube Sleeving

This sleeving withstands temperatures up to 390°F and is often used to insulate connections in transformers and relays. It prevents electricity and heat from dissipating from wire and cable.

Expandable Electrical-Insulating Tube Sleeving

A specially formulated silicone rubber coating allows this sleeving to stretch over items during installation; it then tightens around its contents for a secure fit.

Spark-Resistant Tube Sleeving

A silicone rubber coating on this fiberglass sleeving protects against sparks and molten metal splash.

Extra-Thick Spark-Resistant Tube Sleeving

Made from thicker and denser fiberglass than standard spark-resistant sleeving, this sleeving is more abrasion resistant and provides better insulation. The silicone rubber coating protects against sparks and molten metal splash.

Spark-Resistant Hook-and-Loop
Wrap-Around Sleeving

Silicone rubber coats this fiberglass sleeving to shed sparks and molten metal splash. It has a slit along the entire length so it easily wraps around wire, cable, and hose without disconnecting them.

Spiral Sleeving

Wrap this sleeving around cable, cords and wires to protect them and to form bundles.

High-Temperature Wrap Sleeving

A mica and silicone rubber blend allows this sleeving to withstand temperatures up to 2100° F. It can be quickly applied to hose or cable like tape, so it's a good option for emergency patches.

Continuous-Flex Abrasion-Resistant
Heat-Shrink Tubing

Often used in automated applications such as robotics, this highly flexible silicone rubber tubing withstands continuous motion without cracking and tearing. It resists abrasion and can be dragged over rough surfaces without damage.

Clamp-On Expansion Joints

Slip these joints over your pipe ends and tighten the band clamps for a secure hold.

High-Temperature Round Caps

Good for electroplating, paint baking, and powder-coating applications, these caps withstand temperatures up to 440° F or 570° F.

Stretchable Sealing Caps

Tug on the pull tabs to stretch these caps onto the tips of bottles, beakers, flasks, and cylinders, creating an airtight seal.

High-Temperature Tapered Plugs

Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 570° F. All are tapered to fit a range of hole diameters.

Hollow High-Temperature Tapered Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Good for electroplating, paint baking, and powder-coating applications, they withstand temperatures up to 450° F.

Miniature Pull-Through Round Plugs

Also known as mouse tails, these tiny plugs fit through-hole IDs as small as 0.022”, 0.025", or 0.03”.

High-Temperature Round Grips

Made of silicone, these grips withstand temperatures up to 400° F.

High-Temperature Finger-Groove Round Grips

Made of silicone, these grips withstand temperatures up to 400° F. They are grooved to conform to your fingers for a comfortable, secure grasp.

Tear-Resistant Silicone Foam Pipe Insulation

Even at high temperatures, these tubes remain flexible to stretch over components without tearing. They restrict absorption of water, air, and gas and are typically used on hot and cold water lines and electrical components.

Create-Your-Own Round Bellows with Flange Ends

Interlock bellows, mounting flanges, and links to create a custom-length bellows. These molded bellows are airtight to keep contaminants out.

High-Temperature Breathable
Round Bellows with Flange Ends

These fiberglass bellows withstand temperatures up to 450° F—about twice as much as standard breathable round bellows with flange ends. They also protect against flames and sparks.

High-Temperature Grommets

These flexible grommets withstand temperatures of 450° F or greater, which is approximately twice as high as our standard grommets. Push them into place to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration.

Sanitary Sealing Grommets

Create a sanitary seal on through-wall piping, tubing, and cables in food-, cosmetic-, and pharmaceutical-processing areas.

High-Temperature Foam Tubes

High-Temperature Push-On Seals with Bulb on Side

Able to withstand temperatures up to 500° F, these all-rubber silicone seals resist water and salts.

Protective Covers for 3D Printer
Extruder Heating Elements

Shield your 3D printer's heating element, or hot end, from sticky filament buildup with these nonstick silicone covers. By repelling plastic and keeping the heating block clean, they increase the heating block's life and prevent stuck filament from dripping off and ruining prints.