Cold Shrink Joints Built for Reliable Cable Seals and Faster Installation
Cold shrink joints are the answer when cable sealing has to be fast, clean, and dependable on site. Jointmaster supplies ISO 9001-certified cold shrink solutions from Alberton, backed by more than 33 years of cable jointing know-how and in-house technical support.Cold shrink joints remove the need for heat, open flame, or messy compounds, which is why they are widely used where speed and consistency matter on live projects. Jointmaster manufactures and supplies cold shrink joints as part of a complete cable accessories range that also includes LV cable joints, heat shrink tubing, terminations, resin joints, and insulation products. Based in Alberton, Greater Johannesburg, the company supports transmission, distribution, generation, municipal, industrial, and wholesale customers with products built to meet strict quality and application demands. Its team also provides testing and artisan training, so installers work with proven methods and understand how to use the product range correctly in real conditions.
What you get
• No-heat installation
Cold shrink joints can be installed without torches or heating equipment, which helps reduce risk and keeps work moving in tighter or more sensitive spaces.
• Stable sealing performance
The pre-expanded design contracts over the cable to form a tight, reliable seal that helps protect joints from moisture, dust, and contamination.
• Broad network use
These joints suit utility, municipal, industrial, and wholesale applications where dependable cable connection protection is needed across LV and medium voltage work.
• Backed by technical support
Jointmaster can assist with product selection, installation practice, and cable accessory training so crews use the right jointing method for the job.
How it works
1. Identify the cable type, voltage class, and installation conditions so the correct cold shrink joint kit is matched to the application.2. Prepare the cable ends carefully, including stripping, cleaning, and positioning the components so the joint can seal correctly once installed.
3. Slide the cold shrink body into place and remove the support core so the elastomeric joint contracts evenly around the cable.
Frequently asked questions
Q: What are cold shrink joints used for?A: Cold shrink joints are used to seal and protect cable connections without the need for heat-shrink tools. They are a practical choice for LV cable joints, medium voltage work, and installations where fast, controlled assembly is important.
Q: Are cold shrink joints suitable for outdoor installations?
A: Yes, they are designed to create a tight environmental seal that helps protect the joint from moisture and contamination. That makes them useful for outdoor utility, municipal, and industrial cable networks.
Q: How do cold shrink joints compare with heat shrink tubing?
A: Cold shrink joints install without heat, while heat shrink tubing requires a heat source to activate and form the seal. Both have their place, but cold shrink is often preferred where safety, speed, or site conditions make open flame impractical.
Cold Shrink Joints | Jointmaster South Africa Cold shrink joints are the answer when cable sealing has to be fast, clean, and dependable on site. Jointmaster supplies ISO 9001-certified cold shrink solutions from Alberton, backed by more than 33 years of cable jointing know-how and in-house technical support. From LV cable joints to medium voltage installations, the focus is on secure performance in South African transmission, distribution, municipal, and industrial networks.