What material is better for FEP PTFE PVDF heat shrinkable tube?

Types of heat shrinkable tube materials:
A kind of tube that has gradually replaced the original insulation protection measures is called heat shrinkable tube. There are many types of materials. Today, I will do an in-depth interpretation of its material. The more common heat shrinkable tube materials are PVC (polyvinyl chloride), PE (polyethylene), PVDF (polyvinylidene fluoride), PTFE (polytetrafluoroethylene), fluorine rubber, EPDM (ethylene propylene diene rubber), FEP (Polyfluoroethylene) is often used in standard products, and silicone rubber can be used in food and medical.

PTFE (polytetrafluoroethylene) heat shrink tubing
It is also called Teflon, so the prepared heat shrinkable tube is also called Teflon heat shrinkable tube, commonly known as plastic king resin. The standard products of Teflon heat shrinkable tubes are generally only transparent. Because of the particularity of the material, the products produced have a certain whitening and are not completely transparent.

( PTFE (polytetrafluoroethylene) heat shrink tubing )

FEP (polyperfluoroethylene) heat shrink tubing
The main outstanding performance is transparency, which can continue to work at high temperature of 200 °C. It can perfectly solve the places where high temperature resistance, corrosion resistance and high transparency are required.

( FEP (polyperfluoroethylene) heat shrink tubing )

PVC (polyvinyl chloride) heat shrink tubing
It is often used to make PVC heat-shrinkable tubes. The wall thickness of its products is thin, and it is one of the cheapest heat-shrinkable tubes. It is often used for the insulation protection of batteries and the packaging of mop poles. The products have many colors and are brighter.

( PVC (polyvinyl chloride) heat shrink tubing )
PE (polyethylene) heat shrinkable tube
It is the most widely used and proportioned product at present. Because of its good insulation and wear resistance, it can manufacture more products. Representative products are: single-wall heat-shrinkable tube, high-pressure busbar heat-shrinkable tube. After secondary development, the original process was improved, and the inner wall was coated with a layer of hot-melt adhesive. The new product, double-walled heat-shrinkable tube with glue, was launched, because the hot-melt adhesive on the inner wall melted when heated to block the entry of air and moisture Also known as waterproof heat shrinkable tube. In the follow-up, with the progress and development of the industry, the requirements for the required performance have increased, and the wall thickness and glue layer have been increased on the original basis, which has evolved into the commonly used cable heat shrinkable sleeve. PE material is involved in both the electronics industry and the power industry, so it is the most widely used material. Can produce red, yellow, green, blue, black, white, transparent and other color products, the gloss is relatively dull (matt).

( PE (polyethylene) heat shrinkable tube )
PVDF (polyvinylidene fluoride) heat shrink tubing
The manufactured heat shrinkable tube material can have the effect of high temperature resistance, and can resist some solvents and oils. The temperature resistance grade is divided into 150℃ and 175℃, 150℃ is soft type, 175℃ is semi-hard type. The use environment can also be divided into two types: industrial industry and medical industry. Standard products are black and transparent, black has better gloss, and transparent products are specially prepared to not turn yellow during use. Industrial industry: Especially suitable for environments that require high temperature resistance, solvent resistance and wear resistance. Medical industry: It is made of medical grade fluoropolymer and passed the ISO10993 medical biocompatibility test.

PVDF (polyvinylidene fluoride) heat shrink tubing
Fluorine rubber heat shrinkable tube
The prepared heat-shrinkable tube also has high temperature resistance, and the low temperature resistance can reach -65°C, and is not brittle at low temperature. Fluorine rubber heat shrinkable tube has excellent oil resistance and chemical corrosion resistance, which can protect wire harnesses and cables in oily or high temperature environments. The finished product is only black in color and appears to have a layer of oil on the surface. It feels like an eraser and has a certain stickiness.

( Fluorine rubber heat shrinkable tube 
EPDM (EPDM rubber) heat shrinkable tube
It is processed by a special process, with good physical and mechanical properties and excellent wear resistance. It is mainly used in the insulation protection of electronic components of cable harnesses. It is soft and elastic, and has a good grip. It is used more in electronics, automotive, decoration and lighting engineering. It can work at a temperature of 150 °C for a long time, and can also be used for a short time or intermittently at a temperature of 180-200 °C for a short time. Standard color is black.

EPDM (EPDM rubber) heat shrinkable tube

Silicone heat shrink tube
Heat shrinkable tubes are prepared by mixing silicone rubber. The products are divided into two types: flame retardant and non-flame retardant. Silicone heat shrinkable tubes are often used in medical equipment, household appliances, and aviation that have certain requirements for product flexibility and temperature resistance. Aerospace, automotive, electronic components, transformers, engines and other fields, provide insulation protection for wires and cables. Able to withstand high temperature 200 ℃, the standard colors are mainly iron red and gray. The above is an overview of heat shrinkable tube materials and the difference between various materials, and how to choose suitable heat shrinkable materials in future projects, which can achieve the effect of protecting products.

( Silicone heat shrink tube )

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