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Insulation Products Heat & Cold Shrink
Jointing Tech supplies heat-shrink and cold-shrink insulation products for cable insulation, sealing, protection, repair and termination work. The range includes heat-shrink tubing, cold-shrink tubing, cable breakouts, end caps, abandonment kits and busbar insulation products for LV, MV and HV applications.
The right insulation product can provide electrical insulation, environmental sealing, mechanical protection and cable-end management when correctly selected and installed. Product choice depends on the cable size, voltage application, environmental conditions, required recovery range and whether heat can safely be used at the installation location.
Heat-shrink tubing is installed by applying controlled heat so that the material recovers around the cable, connector or component. It is commonly used where a heat source can be safely used and the correct installation conditions can be maintained. Cold-shrink products use pre-expanded material held on a removable support core; once the core is removed, the material recovers around the prepared cable without an open flame or heat source.
Before selecting insulation products, confirm the cable or component diameter before and after installation, required voltage performance, wall thickness, shrink or recovery range, installation environment, UV exposure, chemical exposure and sealing requirements. For busbar systems, confirm the voltage class, busbar dimensions and clearances.
Many cable and component protection applications may require heat-shrink, but it must be installed safely based on site conditions. Subject to product and installation requirements, cold-shrink may be beneficial in small areas or where hot works are limited. Follow manufacturer's instructions for preparation and installation.
For cable joints and terminations, use insulation products approved for the relevant kit or cable system. Do not substitute tubing, tapes or breakouts for an engineered component of a joint or termination system unless the product manufacturer confirms compatibility.
FAQs
What is the difference between heat shrink and cold shrink?
Heat shrink requires controlled heat to recover around the cable or component. Cold shrink recovers after its removable support core is removed, without applying heat.
How do I choose the right tubing size?
Check the cable or component diameter before installation and the final recovered diameter, then select a product whose recovery range suits both.
Can heat shrink be used in confined spaces?
Only where heat can be used safely and in accordance with site controls. Cold shrink may be a more suitable option in some restricted environments.
What are cable breakouts used for?
Cable breakouts help seal and insulate the transition between the main cable sheath and individual cores in suitable applications.
Need help choosing insulation products?
Contact Jointing Tech with the cable dimensions, voltage, application and installation environment.
