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What is cold shrink tube?
Time: 2020-11-07 10:38:42     Copyfrom: SuZhou Volsun Electronics Technology Co.,Ltd.

Everyone already knows Heat shrink tube what they are. In recent years, a new type of cold shrink tube has been released.The first question that follows must be: what is a cold shrink tube?


The cold shrink tube generally refers to the tubular cable accessories using cold shrink technology,which has the functions of insulation, sealing and protection.Cold shrink technology is also called pre-expansion technology,because it shrinks by elastic retraction force at room temperature,instead of heating and shrinking like heat shrinking materials.So it is commonly known as cold shrink technology. Commonly used materials for cold shrink tube are silicone rubber and ethylene propylene rubber.

So what are the characteristics of cold shrink tube:

1. First of all,the cold shrink tube is easy to install,only manual operation is required,no heating or special tools are required and no hot melt glue or tape is required to strengthen the seal at the joint.

2. The cold shrink tube can be suitable for the connection and sealing of a wide range of cables with different specifications and can be used for indoor,outdoor,overhead,water or buried power,communication and other cables.

3. Strong resilience,large radial retraction force and small permanent deformation.Even if it is used for a long time,it still maintains permanent radial pressure on the cable,tightly sealed and has excellent moisture-proof,waterproof and dust-proof performance.

4. With excellent resilience and "elastic memory", it can "breathe" with the seal,so it can achieve an excellent sealing effect, and it can still maintain a very good sealing effect in a dynamic environment of wind swings.


5. Mechanical properties,electrical properties,aging resistance and corrosion resistance are all excellent.


Volsun silicone cold shrink tube application in telecommunication base station, if you have more special requirement on base station waterproof solutions, welcome to contact us. We will develop new products for you specially. In the coming future, we will follow up the market demand to develop more insulation tube products to satisfy different customers’ needs.

More detail please contact our Sales team by volsuntube@szvolsun.com

KEYWORD:cold shrink tube,silicone rubber cold shrink tube
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