Heat shrink tube CellPack 143556 with adhesive, single piece — heat-shrink tubing

CellPack 143556 is a single-piece heat shrink tube with inner adhesive designed for insulating, sealing and protecting wire joints and cable terminations. Supplied in a polybag, this adhesive-lined heat-shrink tubing provides a moisture-resistant barrier and mechanical strain relief after heating. The recovered dimension after shrinking ensures a tight fit over connectors, splices and irregular cable profiles, making it suitable for repair and splicing tasks where a durable, sealed finish is required.

Advantages

This heat-shrink tube with adhesive forms a reliable, bonded seal around cables and joints, preventing ingress of moisture and contaminants while improving mechanical stability. The single-piece format simplifies inventory and application for small repairs or one-off installations. The adhesive lining flows and cures during heating to fill gaps and create a continuous protective layer, and the recovered dimension after shrinking guarantees consistent coverage and compact installation.

Suitable for

• Insulation of electrical splices and terminations
• Repairing damaged cable jackets and outer sheaths
• Strain relief on connector joints and cable transitions
• Moisture sealing for indoor and protected outdoor applications

When it may not be suitable

This heat-shrink tube is intended for low- to medium-voltage insulation, mechanical protection and moisture sealing; it is not a replacement for high-voltage insulation systems or primary protective enclosures. It may not be suitable for continuous exposure to very high temperatures beyond the material's rated limits or for applications requiring flame-retardant certification beyond standard adhesive-lined tubing specifications.

Key specifications

• Material: heat-shrinkable polymer with inner adhesive lining
• Format: single-piece tube supplied in polybag
• Function: insulation, strain relief and environmental protection
• Sealing: adhesive-lined for moisture and contaminant resistance
• Fit: recovers to specified dimension after shrinking for tight coverage

How to use

Slide the heat-shrink tube over the joint, splice or connector before making the final connection where practicable. Position the tube so that it fully covers the repair area with some overlap onto the intact cable. Apply heat evenly using a heat gun or suitable heat source until the tube uniformly shrinks and the inner adhesive flows to form a continuous seal. Allow to cool undisturbed for the adhesive to set and the tubing to complete recovery.

What to consider before purchase

• Confirm the pre-shrink and recovered dimensions to ensure proper fit over connectors and splice profiles
• Verify the operating temperature range and environmental suitability for your application
• Consider whether the adhesive-lined construction meets sealing and moisture-resistance requirements
• Ensure that single-piece packaging quantity matches the scope of your repair or installation work

Usage recommendations

For best results, use a regulated heat gun to provide even heat and avoid local overheating. Ensure the surface is clean and free of oils or loose debris before applying the tube. When working outdoors or in damp environments, allow sufficient overlap on solid cable jacket to achieve a durable moisture seal.