Main Application Areas of Silica Powder

What is silica?

Silica powder can be made from natural quartz, fused silica and others. Raw materials are processed through multiple processes, such as grinding, precision classification, and removal of impurities. The most popular products are fused silica powder and crystalline silicone powder. Micropowders and spherical micropowders of silica are two examples.

Silica powder has a wide range of applications.

Crystalline silica is used primarily for copper clad laminations in refrigerators, air conditioners, and other household appliances. The majority of copper clad laminates found in smart phones and tablet computers, as well as air conditioners, washing machines, and air conditioners are made from fused silica. The spherical silica powder, which is among the many epoxy plastic molding materials, has exceptional characteristics, including high fluidity and low stress. Spherical silicon dust fills at a higher rate than angular silica powder. This is a significant advantage over epoxy plastic mold compounds and copper clad laminations. The coefficient of linear extension is used most often in high-end copper laminates like aerospace, 5G communications and epoxy plastic packaging materials that are large-scale integrated device packaging such as smart phone and wearable devices.

Copper Clad Laminate – Application of silica powder

It is important to add performance fillers to copper clad laminate’s production formula to improve heat resistance and reliability. Silica powder is widely used as a filler in the copper-clad laminate industry because it has many advantages, including heat resistance, dielectric property, linear expansion coefficient, and dispersibility within resin systems.

Epoxy Molding Compound – Application of silica powder

A molding compound that is composed of epoxy resin as matrix resin and high-performancephenolic resin curing agent. Silicon powder can be used as filler. The epoxy molding compound composition consists of 60-90% filling rate.


Tech Co., Ltd. is a silica supplier that has more than 12 years of experience in chemical products development and research. We accept credit cards, T/Ts, West Union, and Paypal payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.


Send us an inquiry if you are interested in SiO2 powder of high quality.