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Silica for Silicon Rubber

Silicon Rubber Silica / Transparent Silicon Rubber / Translucent Silicon Rubber

In silicon rubber, the silica is primarily used in translucent, transparent, common high-temperature vulcanized silicone rubber and other general rubber products, as well as rubber seal product, sealants, and plastic fillers.

Generally, fumed silica is used by manufacturers due to the high purity of the silica content and the low concentration of water and impurities, however, these silica types can be much more expensive than precipitates silica. Therefore, we have concentrated on the development of a special formula in order to improve the purity of the silica and reduce impurities such as iron with a goal of creating a higher economic efficiency.

The fluctuation value of BET can be controlled to less than 10.


Silica product SiO2 (w/%) DBP (ml/g) Soluble salt solution (w/%) Cu (ppm) Fe (ppm) Mn(ppm) General Use Recommendations
ZJ-710 ≧97.0 2.4-2.8 ≦0.3 ≦10 ≦200 ≦40 low BET, excellent processing performance and is suitable for making silicon rubber at room temperatures, miscellaneous rubber pieces and more
ZJ-720 ≧97.0 2.4-2.8 ≦0.2 ≦10 ≦150 ≦40 high BET with a very low impurity content. It also features properties for heat resistance, yellowing resistance, and a high transparency. suitable for pressure cooker seals, silicone keyboards and more

The silicon rubber silica should be stored in a ventilated, cool, dry place, away from direct sunlight, moisture and fire. It also should not be mixed with other materials. The storage temperature should be less than 40°C.

The warranty period is 12 months, from the date of manufacturing. After the 12 month period is up, a re-determination of the rubber silica product should be undertaken. In order to continue using the silica, all of its data must comply with industry health standards, though we do not recommend using the product outside of the warranty period, regardless.

Standard packaging includes small bags, paper bags, cartons and flexible intermediate bulk containers (FIBCs) in order to fully meet customer requirements.

The rubber silica product can also be packaged according to customer needs for material, form and size.


Contact Us

Fujian Sanming Zhengyuan Chemical Co., Ltd.

Grace Hu
Tel.: +86-182-0590-6390
Fax: +86-0598-5592-777
E-mail: Gracehu@fjsmzy.com
Skype: Gracehu.silica@outlook.com

Daniel Dai
Tel.: +86-185-8821-6368
Fax: +86-0598-5592-777
E-mail: sale@fjsmzy.com

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