Professional manufacturer of expanded PTFE gaskets

Professional manufacturer of expanded PTFE gaskets

It is a non-metallic gasket generally composed of a cladding layer and an embedded material. The coating layer mainly serves the purpose of corrosion resistance and is usually made of polytetrafluoroethylene material. The embedded material (filler) is a non-metallic sealing material with or without a metal reinforcement layer, usually asbestos rubber sheet, which has good elasticity. The sealing gasket is divided into V-shaped, U-shaped, and L-shaped according to the different core structures. In the petroleum, chemical, pharmaceutical, and food industries, some containers, pipelines, and valve connections are often sealed with polytetrafluoroethylene gaskets to ensure material cleanliness.

Application scope:
It is widely used for sealing various strong acids, strong bases, strong oxidants, and non polluting media.

Professional manufacturer of expanded PTFE gaskets

High temperature resistance - operating temperature up to 250 ℃.
Low temperature resistance - with good mechanical toughness; Even if the temperature drops to -196 ℃, it can maintain a 5% elongation rate.
Corrosion resistance - exhibits inertness towards most chemicals and solvents, and can withstand strong acids, alkalis, water, and various organic solvents.
High lubrication - refers to the coefficient of friction in solid materials.
Non adhesive - refers to the small surface tension in solid materials that does not adhere to any substance.
Non toxic - physiologically inert, implanted as artificial blood vessels and organs without adverse reactions.

1. Strong acid resistance Strong alkali, almost resistant to all chemical media, except for molten alkali metals and elemental fluorine.

2. Outstanding insulation performance, good aging resistance and weather resistance.

3. Low friction coefficient, difficult to bond, easy to install and disassemble

4. The product is clean and can be used in sealed areas that are not allowed to be contaminated, such as food and medicine

5. The coefficient of linear expansion is low, and it is prone to creep or stress relaxation during cold flow and high temperature under compression, making it unsuitable for use in high-temperature and high-pressure areas.

6. High mechanical strength, good turning performance, and easy processing into different sealing products.

It has * structure and function, good biocompatibility, and is very suitable as organ repair material and plastic surgery material. Moreover, with the advancement of medicine, the popularization of various difficult surgeries, and the improvement of people's living standards, the demand for EPTFE products is increasing. However, currently, most of the EPTFE products used rely on imports and are expensive, which brings a great economic burden to patients. Therefore, the development of EPTFE materials that are functionally compatible with imported products not only has important theoretical significance, but also generates significant economic benefits.