Heat Shrink & Cable Protection

Protect, identify and finish cable joints with heat-shrink tubing, dual-wall heat-shrink, assorted kits and selected loom-retention products. This range is for cable protection after the correct connection has been made; it does not replace the need to select compatible cable, terminals and crimping equipment.

Single-wall or dual-wall heat shrink

Single-wall tubing is commonly used for insulation, colour identification and a neat finish where the joint is already protected from moisture. Dual-wall or adhesive-lined products can provide additional sealing when the product specification and installation method suit the environment. Check the supplied size, shrink ratio, temperature requirements and stated use before choosing.

Size the tubing before heating

Select tubing that fits over the largest component before shrinking and reduces securely around the finished cable or terminal. Measure the joint, allow for connectors and branch points, and check whether the product is supplied by length, pack or kit. Use a controlled heat source according to the manufacturer’s instructions and keep heat away from adjacent components, fuel lines, hoses and sensitive insulation.

Complete the cable-installation task

For the connection itself, shop Cable Lugs & Terminals and Electrical Crimping Tools & Dies. For preparation, see Cable Cutters & Wire Strippers. The wider Cable Installation & Termination collection covers related installation equipment.

Heat Shrink & Cable Protection FAQs

How do I choose heat-shrink size?

Choose a size that will pass over the largest part of the finished joint before heating, then confirm it will shrink to the intended cable or terminal diameter. Check the product’s stated shrink ratio and dimensions rather than estimating from a photo.

Is dual-wall heat shrink always better?

Not necessarily. Dual-wall or adhesive-lined tubing may be appropriate where its sealing characteristics suit the job, while single-wall tubing can be suitable for basic insulation and identification. Select for the actual environment and the product manufacturer’s stated limits.

Can I use a flame directly on heat-shrink tubing?

Follow the manufacturer’s instructions for the product and the work area. Apply heat in a controlled way and avoid damage to cable insulation, nearby components or the tubing itself.