Heat Shrink Tubing

Heat Shrink Tubing

Heat shrink tubing is a shrinkable plastic sleeve used to insulate, protect, and seal cables, wires, and joints. Widely made from polyolefin, PVC, fluoropolymers or dual-wall options, it provides abrasion resistance and environmental sealing for electrical installations. It also serves to bundle and colour-code cables for easy identification.

Ideal for electrical insulation, mechanical strain relief, and protection against moisture, dust, chemicals or UV exposure.

Benefits of Heat Shrink Tubing (H3)

• Electrical insulation: Prevents shorts and enhances safety.
• Strain relief: Secures connections and reduces cable bending stress.
• Environmental protection: Shields against moisture, chemicals and abrasion.
• Cable bundling & colour coding: Streamlines installations and identification.

Materials & Types (H3)

• Polyolefin tubing: Fast shrinking (2:1 or 3:1 ratio), flame-retardant, solvents- and UV-resistant.
• PVC tubing: Flexible and durable with strong chemical resistance.
• Fluoropolymers (e.g., PTFE, FEP): Excellent for extreme chemical and temperature environments.
• Dual-wall (adhesive‑lined) tubing: Provides watertight seals and firm adhesion for cable joints.

How to Choose the Right Heat Shrink Tubing (H3)

1. Shrink ratio: Choose 2:1 for standard applications or 3:1 for tight-fitting covers.
2. Tubing material: Polyolefin for general use; choose PVC or fluoropolymers for chemical or thermal resistance.
3. Wall type: Dual-wall tubing for moisture sealing; single-wall for flexible protection.
4. Colour & diameter: Choose based on cable gauge and colour coding needs.

Trusted Brands & Services (H3)

We stock premium heat shrink tubing from RS PRO, Alpha Wire, Hellermann Tyton, TE Connectivity, and other leading brands. Options include adhesive-lined, halogen-free, and flame-retardant types.

Enjoy fast & free delivery across South Africa or collect your order from our RS South Africa branch in Kyalami, Midrand.

Need expert guidance?

Check out our Heat Shrink Tubing Guide. Note: This guide is hosted on our UK site. Some technical standards may reference UK specs, but the content remains globally relevant