Microsilica By Xiamen Bentonite International Corporation

Microsilica, also known as Silica fume, is a by-product from producing silicon metal or ferrosilicon alloys. Microsilica consists primarily of amorphous (non-crystalline) silicon dioxide. The individual particles are extremely small, approximately 1/100th the size of an average cement particle. Because of its fine particles, large surface area, and the high SiO2 content, silica fume is a very reactive pozzolan when used in concrete. Microsilica often applies to a variety of cementitious products such as concrete, grouts, and mortars as well as elastomer, polymer, refractory, ceramic and rubber applications.
As a credit standing enterprise, our microsilica are collected from ferrosilicon and silicon metal factories, which have stable SiO2 content and high pozzolanic strength activity. According to SiO2 content, our microsilica ranges from Grade 85, Grade 90, Grade 95 ect.