What environments are Heat Shrinkable Tube not suitable for?

Heat Shrinkable Tube, Heat Shrinkable Tube made of Cable Sleeve materials, are widely used in waterproof sealing of daily necessities such as fresh-keeping boxes, rice cookers, water dispensers, lunch boxes, heat preservation boxes, heat preservation boxes, water cups, ovens, magnetized cups, and coffee pots. and preservation.

First, what are the advantages of knowing it
1. It has the characteristics of heat resistance and can work in a very low environment, and the applicable low temperature can reach -100°.
2. It has good resistance to oxidation and ozone in the air. Due to the molecular structure of the Cable Sleeve, the Heat Shrinkable Tube has good air permeability and good selectivity to gases, and because it is non-toxic, tasteless and more Heat Shrinkable Tube is used in many food and medical industries.
3. Excellent insulation performance, but appropriately adding carbon black, nickel powder, aluminum powder, etc. to the material can increase the conductivity.
4. It has hygroscopic performance, which has the function of absorbing and isolating moisture in the environment, but has poor water vapor resistance.
2. Its disadvantages determine which environments are not suitable for using Heat Shrinkable Tube
1. It is not suitable for use in a working environment with a working pressure exceeding 50 pounds. Although the Heat Shrinkable Tube is compatible with most oils, compounds and solvents, and has good acid and alkali resistance, it is not suitable for alkane hydrogen and aromatics. Oil has little resistance.
2. It is not recommended to use Heat Shrinkable Tube in most concentrated solvents, oils, concentrated acids and diluted caustic soda solutions.
In short, some special Heat Shrinkable Tube with special ingredients also have radiation resistance, flame resistance, and oil resistance, but the disadvantage of Heat Shrinkable Tube is that their mechanical properties are poor. It is not recommended to use Heat Shrinkable Tube, usually only used as a static seal.