Related Products And Application Of Rubber Gasket

Rubber gasket is a kind of sheet rubber product that plays a sealing role between two static surfaces of metal flange or other connecting parts. It can be made by molding or by vulcanizing film. It can be widely used in all kinds of mechanical equipment, such as pad, seal, buffer and so on.

In terms of form, the commonly used rubber washer includes: rubber flat washer, rubber O-ring, plastic flat washer, polytetrafluoroethylene wrapped washer, asbestos rubber washer, metal flat washer, metal abnormity washer, metal sheath washer, wave washer, spiral wound washer, etc.

(1) Rubber flat washer: it is easy to deform and easy to compress, but its pressure and temperature resistance are poor. It is only used in places with low pressure and low temperature. Natural rubber has a certain acid-base resistance, and the service temperature should not exceed 60 ℃; chloroprene rubber can also be resistant to some acid-base, and the service temperature is 80 ℃; nitrile rubber can be resistant to oil, and it can be used to 80 ℃; fluororubber has a good corrosion resistance, and its temperature resistance is better than general rubber, and it can be used in 150 ℃ medium.

(2) Rubber sealing washer: the section shape is round and has a certain self tightening effect. The sealing effect is better than that of flat washer, and the pressing force is smaller.

From the material point of view, the main products of rubber pad are: silica gel pad, nitrile rubber pad, fluororubber pad, and other rubber pads. Rubber gasket has the properties of oil resistance, acid and alkali resistance, cold and heat resistance, aging resistance, etc. it can be directly cut into various shapes of sealing gasket, widely used in medicine, electronics, chemical industry, antistatic, flame retardant, food and other industries.

silicon rubber

It has outstanding high and low temperature resistance, good use elasticity in the temperature range of - 70 ℃ - + 260 ℃, ozone resistance and weather aging resistance. It is suitable for sealing gasket in thermal machinery. Non toxic can be used to make thermal insulation, insulation products and medical rubber products. At the same time, it has waterproof, flame retardant, high temperature resistance, conductive, wear-resistant, oil-resistant and other excellent properties, widely used in machinery, electronics, water heating and other industries.


NBR (Nitrile-Butadiene Rubber) is a polymer made from emulsion copolymerization of butadiene and acrylonitrile. It is known for its excellent oil resistance, and also has good wear resistance, aging resistance and tightness. Therefore, it is widely used in rubber industry.

Fluorine rubber

High temperature resistance, can be used in - 20 ℃ - + 200 ℃, strong oxidant resistance, oil resistance, acid and alkali resistance. It is usually used in high temperature, high vacuum and high pressure environment, also suitable for oil environment, widely used in petroleum, chemical, aviation, aerospace and other sectors.


Chloroprene rubber, natural rubber, EPDM rubber, acrylate rubber and other special rubber. It is resistant to oil, acid, alkali, wear, high and low temperature.