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Gallery View: Heat-shrink tubes in various materials, shrink ratios, operating temperatures
Global SourcesUpdated on 2023/12/01
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Makers of heat-shrink tubes in China highlight customization capability to meet diverse application requirements.
For use in wires, cables, passive components and batteries, heat-shrink tubes offer enhanced flexibility and insulation, and flame retardancy. In China, makers can supply them in any specification.
The standard selection consists of single- and dual-wall versions. The former is based on materials such as PVC, PET and PTFE, while the second has polyolefin alloy outer and EVA inner layers for added abrasion and corrosion resistance. Typical choices are 2:1, 3:1 and 4:1 shrink ratios. The usual color options are black, red, yellow, green, blue, white, purple and gray.
Based on the highest temperature supported, PVC heat-shrink tubes have 85 and 105 C variants and come in diameters of 2 to 200mm. These meet RoHS guidelines. PET counterparts are nontoxic and easier to recycle, and offer better electrical insulation, mechanical performance and resistance against heat. Besides RoHS, the latter type conforms to SS-00259 standards.
Manufacturers said releases that can withstand 125, 150, 175, 200 and 260 C are popular in electronics, automotive, mechanical, medical and military applications.
Materials are sourced from local or foreign sources, depending on buyers' requirement. Input cost has remained flat, so prices have not changed much. This trend is expected to last in the months ahead.
The products in this gallery have been handpicked by our China-based market analyst for representing current trends in heat-shrink tubes from China makers.
70% tensile strength retention after aging
The DW Series model is a heat-shrink tube from Guangzhou Kaiheng K&S Co. Ltd with -10 to 10 percent longitudinal shrinkage. It retains 70 percent of the original minimum tensile strength after aging, can withstand 2,500V/min and has less than 1min average burn time.
An order of at least 1,000m has a delivery lead time of 7 days.
VW-1 rating
Guangzhou Kaiheng K&S Co. Ltd offers the model K-2 Series heat-shrink tube that is resistant to heat shock and will not crack, drip or flow. The VW-1-rated unit has -10 to 10 percent longitudinal shrinkage, 70 percent original minimum tensile strength retention after aging and 2,500V/min withstand voltage.
The minimum order is 1,000m. Delivery is within 7 days.
2:1, 3:1, 4:1 shrink ratios
In single- and dual-wall variants, this Heatshrinktube1 model from Sasun International Electric Co. Ltd is available in 2:1, 3:1 and 4:1 shrink ratios, and in white, yellow, red, blue and black. It operates in -55 to 125 C.
The 1,000m minimum order has a 5-day delivery lead time.
Single-, dual-wall tubing options
Sasun International Electric Co. Ltd offers the model Heatshrinktube2 with 2:1, 3:1 or 4:1 shrink ratio, and single or dual walls. It operates in -55 to 125 C, and comes in black, white, yellow, red or blue.
The minimum order is 1,000 meters. Delivery lead time is 5 days.
Halogen-free, single-wall
This heat-shrink tube from Yueqing Kaisen Electric Technology Co. Ltd, RSFR-H model, has 120 C shrink and -45 to 125 C continuous operating temperatures. The single-wall unit is made of halogen-free PE.
The minimum order for this RoHS-compliant product is 200m. Delivery takes 7 days.
PE, RoHS-compliant
From Yueqing Kaisen Electric Technology Co. Ltd, the model RSFR(2X)-6000 heat-shrink tube is made of PE, and comes in black, red, green, blue, yellow and orange versions. It is RoHS-compliant.
An order of at least 100m has a 7-day delivery lead time.
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