Your Specialist in Insulation & Sealing and Protection Solution

Focus on heat shrink tube, cold shrink tube, wire and cable identification labels, Volsun Electronics is your ideal choice for industry insulation, sealing and protection.

Press Release

Technology Knowledge



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As we all know, EPDM cold shrink tubes are mainly used for electric power industry. They have many excellent properties like acid and alkali resistant, wear resistant, puncture resistant, weather resistant, UV resistant, Ozone and aging resistant, etc. They will be expansion and contraction synchronized with the protected parts, can work well in a harsh environment. And they are easy to install with hands, no need to heat or any tools.
It is a good waterproof sealing solution for medium and low voltage power cables, communication cables, coaxial cables, etc. 

Since the EPDM cold shrink tube has excellent properties, some customer used them for reefer container cable protection. So far, our customers from Chile and Vietnam both ordered EPDM cold shrink tube from us and used for their reefer container maintenance or cable protection. The following photos are provided by our customers. 

Volsun was founded in 2006, as the pioneer of cold shrink tube manufacturer in China for more than 14 years. We keep focusing on the R&D, production and sales in insulation, sealing & protection solutions. Quality is our culture. Volsun has a modern quality management system, which has passed a series of quality system certification such as IATF16949, ISO9001. So our quality is guaranteed.
We have our own factory, excellent quality, best service and delivery on-time will be guaranteed. In early June this year, we moved into a new 1,2000㎡ factory building, our production capacity of cold shrink tube will up to 1 million pcs monthly. In addition, EPDM cold shrink tube is also one of our main products except silicone cold shrink tube, and EPDM cold shrink tube mostly used for electric power field of some coaxial cables and power cables, etc.
We also developed new design and new color of cold shrinkable tube based on customers’ actual needs.
Small cold shrink tube, but with a big function, connecting a wonderful future!
For more details, welcome to contact us via
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