The particularity of the raw material used for rubber seals is that it not only meets the structural characteristics of the product, such as its elasticity, strength and other mechanical properties, but also meets the functional characteristics of the rubber seal product, such as its sound, light, Electromagnetic and thermal properties.

At the same time, the rubber varieties and raw materials involved in rubber sealing products are the most used professions in the rubber industry, and the material disciplines, precision, methods, and standards involved are also the most extensive.

Therefore, rubber sealing products are not general vulnerable parts, but basic components. The failure of the two small fluorine rubber seals caused the destruction of the US Space Shuttle Challenger.

With the development of science and technology, environmental protection requirements and sanitary requirements, relevant international organizations have formulated many standard certifications such as NSF, ROHS, PAHS, UL, FDA, WRAS, TZW, etc. The requirements for trace heavy metal content are very high. Strict, even not greater than 0.1PPM, to meet the quality certification of these rubber seals, it is necessary to strictly implement the relevant specifications and standards in the production and processing.

The raw materials are the first hurdle. Good products cannot be made without raw materials that meet professional standards, especially for rubber sealing products.