Heat Shrink Tube CellPack 427614 CR 2.4/1.2 - 3/32" MIX

CellPack heat shrink tube model 427614 CR in size 2.4/1.2 mm (3/32") MIX is a versatile insulating sleeve intended for electrical insulation, strain relief and mechanical protection of wire joints and connectors. The mixed pack provides several pieces of heat shrink tubing with a 2:1 shrink ratio that reduces diameter from 2.4 mm to approximately 1.2 mm, delivering a compact, tight-fitting covering suitable for cable repairs, harnessing and small electronic assemblies.

Advantages

This CellPack heat shrink tubing offers reliable dielectric protection and consistent shrink performance due to its 2:1 ratio, creating a secure fit over soldered joints or crimped terminals. The polyolefin construction provides good resistance to abrasion and environmental factors commonly encountered in electrical installations. The MIX pack format is convenient for technicians and hobbyists who need multiple short lengths for varied small-diameter cables.

Suitable for

• Insulating soldered or crimped wire joints in low-voltage electrical work
• Providing strain relief on connector terminations and cable entries
• Repairing damaged cable insulation on small-gauge wires
• Bundling and identifying small harnesses in electronics and automotive applications

When it may not be suitable

This heat shrink tube is designed for small-diameter wires and low-voltage applications; it may not be appropriate for high-voltage insulation requirements, high-temperature environments beyond the material specifications, or for sealing large-diameter cables. If your application requires adhesive-lined (dual wall) tubing for moisture-tight seals or specialized chemical resistance, choose a different product designed for those conditions.

Key specifications

• Material: polyolefin heat shrink
• Shrink ratio: 2:1
• Expanded diameter: 2.4 mm
• Recovered diameter: approximately 1.2 mm
• Nominal size (imperial): 3/32"
• Intended use: electrical insulation, strain relief and mechanical protection

How to use

Cut a suitable length of tubing, slide it over the wire or joint, then apply heat evenly using a heat gun, hot air tool, or lighter at a safe distance until the tubing contracts tightly around the conductors. Allow the tubing to cool so it sets in place. For best results, position the tubing to fully cover the exposed conductor and any solder or crimped connection before shrinking. Avoid overheating or concentrating flame in one spot to prevent damage to the tubing or underlying insulation.

What to consider before purchase

• Confirm the expanded and recovered diameters match your wire or connector dimensions
• Check that polyolefin tubing meets the temperature and environmental requirements of your application
• Determine whether a plain-wall tube is sufficient or an adhesive-lined (dual wall) tube is required for moisture sealing
• Estimate the number and length of pieces needed; MIX packs contain multiple short lengths suitable for small repairs

Usage recommendations

Use a regulated heat gun on low to medium setting and maintain uniform motion while shrinking the tubing; for electrical safety ensure the power is disconnected before applying tubing over energized conductors. Store the pack in a dry, cool place away from direct sunlight to preserve material properties.