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Heat Shrinkable Tubing

Introduction

Good Gi Heat Shrinkable Tubing is characterized above all by its flame retardant, softness, insulation and low-temp. contracting.

Complete specifications such as thin-walled, high-temperature resistant, adhesive and oil-resistant can meet different applications. High-energy electron beam generated by radiation is used to impact the insulating layer and the sheath so that the polymer chains are interrupted and rearranged to enhance the high-voltage resistance, aging resistance, and heat resistance of the tubing. Axial shrinkage is the core specification of heat shrinkable tubing. And the advancement of expansion technology makes us more outstanding than others. The integration of heating, expansion, vacuum and other processes enables us to achieve the smallest tube size and the most stable quality in this industry  ISO9001:2015 certificated factory  Full tooling sizes to manufacture variety of heat shrinkable tubes  Eco-friendly material; Halogen-Free; Red phosphorus-Free  Comply with UL, RoHS, REACH.  Materials, sizes, or colors can be adjusted to meet customized requirements.

Photo Product Name Operating Temp. Rated voltage Shrink Ratio Flame Rating
product Polyolefin Heat Shrink Tubing
GHT
 -55℃~125℃ 600V 2：1 VW-1
product Polyolefin Heat Shrink Tubing
S-901
 -55℃~125℃ 600V 2：1 VW-1
product Diesel Resistant Neoprene Heat Shrinkable Tubing
GCR
 -70℃～121℃ 2KV 2：1 ASTM D 2671
product KYNAR PVDF175 Heat Shrinkable Tube
GKY
 -55℃ ~ 175℃ 2：1 VW-1
Photo Product Name Operating Temp. Rated voltage Shrink Ratio Flame Rating
product Heat Shrinkable Tubing with Adhesive
GDW
 -55℃~125℃ 600V 3:1 VW-1
product Heat Shrinkable Tubing with Adhesive
S-901-DWT(3X)
 -55℃~125℃ 600V 3:1 VW-1
product Heat Shrinkable Tubing with Adhesive - 4:1
GDW(41)
 -45℃~125℃ 600V 4:1 -
Photo Product Name Operating Temp. Rated voltage Shrink Ratio Flame Rating
product 200℃ Viton Fluoro rubber Heat Shrinkable Tubing
G-VT
 -55 °C ~ 200 °C 2 : 1 VW-1
product PTFE Heat Shrinkable Tube
GDPTFE
 -65°C ~200°C 300V 2 : 1 VW-1
product Temperature Resistant FEP 200℃ Heat Shrinkable Tubing
HFEP
 -65°C ~200°C 1.7 : 1 VW-1
product Heat Shrinkable Silicone Rubber Tubing
HSRT
 -60～200℃ 600V 2:1 VW-1
Photo Product Name Operating Temp. Rated voltage Shrink Ratio Flame Rating
product 1KV Busbar Heat Shrink Tubing
1KV
 -40℃~125℃ 1000V 2:1 VW-1
product 10000 Volts Busbar Heat Shrink Tubing
10KV
 -40℃~125℃ 10000V 2:1 VW-1
product 20000 Volts Busbar Heat Shrink Tubing
20KV
 -40℃~125℃ 20000V 2:1 VW-1
product 35000 Volts Busbar Heat Shrink Tubing
35KV
 -40℃~125℃ 35000V 2:1 VW-1

What is Heat Shrinkable Tubing?

Heat Shrinkable Tubing (also known as Heat Shrink Tubing) is a type of plastic tubing that shrinks when heated, tightly wrapping around wires, cables, wire harnesses, busbars, or other objects. This provides protection functions such as insulation, temperature resistance, waterproofing, and abrasion resistance.

Applications of Heat Shrinkable Tubing

  • Electrical Insulation: Used to repair or cover damaged and exposed wires, providing excellent electrical insulation protection.

  • Barrier Protection: Effectively isolates wires from dust, chemicals, moisture, and external friction, enhancing the cable's resistance to cracking, tensile strength, and bending, thus extending the cable's lifespan.

  • Cable Organization: Organizes and bundles wire harnesses (multiple wires) together, simplifying installation and management.

  • Identification & Labeling: Heat shrinkable tubing comes in a variety of colors, making it easy for identification and color-coded management.

Common Types of Heat Shrinkable Tubing Materials

  • PVC Heat Shrink Tubing

    Primarily used for low-cost, light protection applications, suitable for general electronic products.

  • Polyolefin (PE) Heat Shrink Tubing

    Offers good flexibility and temperature resistance, suitable for various electrical and electronic applications.

  • Silicone Heat Shrink Tubing

    Ideal for extreme temperature environments due to its excellent high-temperature resistance.

  • Fluoroelastomer (Viton) Heat Shrink Tubing

    Designed for high-temperature and chemical environments, perfect for demanding industrial applications.

  • PTFE (Teflon) Heat Shrink Tubing

    Provides exceptional high-temperature and chemical stability, ideal for high-end and extreme environmental needs.

5 Key Factors to Consider When Choosing Heat Shrinkable Tubing

  1. Measure the Diameter of the Object to be Covered

    Choose a size slightly larger than the object to ensure smooth installation and proper shrinkage. If too large, heating time will be extended; if too small, it will be difficult to fit.For more details on how to choose the right specification of heat shrinkable tubing, please refer to our article: How to choose the specification of heat shrinkable tubing?.

  2. Consider Shrinkage Ratio

    Ensure the shrinkage time is within acceptable limits. Tubing size, thickness, material, and heating tools all affect shrinkage time.

  3. Wall Thickness

    The thicker the wall, the better the protection and insulation performance.

  4. Temperature Resistance

    Choose the right temperature resistance range based on the environment's needs.

  5. Length

    Determine the required length and leave extra space for overlap and shrinkage to ensure complete coverage.

Frequently Asked Questions About Heat Shrinkable Tubing

Can Heat Shrinkable Tubing Be Cut?

Yes, heat shrinkable tubing can be cut horizontally to the desired length. Use standard scissors and a tape measure for this purpose. However, avoid cutting lengthwise, as it can affect its ability to wrap and secure properly. Once it has shrunk, it cannot be reopened unless you need to remove it.

Is Heat Shrinkable Tubing Insulated?

Yes, heat shrinkable tubing generally provides excellent insulation. The insulation quality varies based on the material and thickness of the tubing. You can find the perfect heat shrinkable tubing for your needs by selecting the right material and thickness.

How to Remove Heat Shrinkable Tubing?

Removing heat shrinkable tubing requires careful handling since it tightly adheres to the object once shrunk. Typically, a small knife or scissors are needed to gently cut the tubing without damaging the underlying material. Always be cautious when cutting and avoid applying excessive force. If necessary, using a heat tool like a heat gun can soften the tubing, but this depends on the situation.