Everyone knows that there is a certain difference between asbestos rubber sheet and non-asbestos rubber sheet, but it is not clear where the specific difference is and where it is used. The following is a brief introduction by professionals from Jiangsu Saier Sealing Technology Co., Ltd.:

Asbestos Rubber Sheet:

Asbestos rubber sheet is made by pressing asbestos, rubber and filler. According to its formula, process, performance and use, there are mainly high-pressure asbestos rubber sheets, medium and low-pressure asbestos rubber sheets, oil-resistant asbestos rubber sheets, and acid and alkali resistance.

Manufacturing materials:

There are chrysotile asbestos and blue asbestos (crocidolite) as the asbestos materials for manufacturing asbestos rubber sheets.

Chrysotile asbestos belongs to the serpentine type of asbestos. Its main component is magnesium silicate containing about 13% of crystal water. It has good heat and alkali resistance, high tensile strength, and poor acid resistance. Beijing office decoration company, most Asbestos rubber sheets are made of it.

Blue asbestos belongs to the hornblende asbestos, the main component is silicate containing 2.5 to 3.5% of crystal water, magnesium oxide is very small, and iron oxide accounts for about 18 to 24%. Blue asbestos is not only good in heat resistance, but also in acid resistance, so it is mostly used to make acid-resistant asbestos rubber sheets.

The quality of asbestos fiber has a great influence on the performance of asbestos rubber sheet, so the asbestos fiber is required to have high tensile strength, good heat resistance, a certain length, and the fiber is easy to bend and be elastic. Generally, high-pressure asbestos rubber sheets and oil-resistant asbestos rubber sheets above No. 400 use asbestos fibers of grade 2 and 3. Due to restrictions on the use of asbestos rubber sheets, more non-asbestos rubber sheets are used to replace the original asbestos sheets.

Uses: As a sealing material for pipeline flanges, high pressure vessel flanges and various mechanical connection surfaces. When in use, gaskets of various shapes and sizes are generally punched as required.

Non-asbestos rubber sheet

Non-asbestos rubber sheet is also called non-asbestos rubber sheet. The board is a sealing board made of non-metallic materials as fillers, natural rubber, nitrile rubber, etc. as binders, and organic and inorganic fibers as the frame. 100% asbestos free. It is a substitute for imported asbestos-free products. The non-asbestos rubber sheet is safe and environmentally friendly, and is used to process various sealing gaskets.

Summary: Non-asbestos rubber sheet is 100% asbestos-free, the product is safe and environmentally friendly, and can be used in places where asbestos rubber sheet is not allowed.

The above is all the content introduced by the non-asbestos board manufacturers. For more information, please follow the company's official website!