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Application Fields of Silica Powder

Microsilica powder is made from crystalline quartz, fused quartz, and other materials. It is processed through grinding, precise classification, and impurities removal. It is widely used in copper-clad laminates and epoxy plastic sealants. It is also used in electrical insulation materials, rubber, and plastics. It is also used in coatings and adhesives. It is utilized in creating artificial stones, honeycomb ceramics, cosmetics, and other products.

Copper clad laminate

Currently, copper-clad laminates use a variety of silica powder. These are crystalline, fused, spherical, and composite silica powders. The resin filling ratio is approximately 50%. The resin filling rate is generally 30%. This is the weight ratio of silica powder in copper clad laminate, which is approximately 15%.

Epoxy plastic sealing compound

Microsilica powder is the main filler in the epoxy molding compound (EMC). It accounts for approximately 60% and 90%. The epoxy molding compound should enhance the performance of silica powder. Therefore, the particle size, purity, and sphericity of silica powder are crucial. The degree requirements are higher.

Electrical insulation materials

Microsilica powder is used as an insulating filler for epoxy resins. It is utilized in electrical insulation products. It reduces the cured product’s expansion and shrinkage during curing. This reduces stress and enhances mechanical strength. This improves the insulation material. Mechanical and electrical properties.


Silica powder has many advantages. It has small particles and a large surface area. It has good heat and wear resistance. It can enhance the wear resistance, strength, and modulus of rubber. However, the surface of silica powder contains many acidic silanol groups. If these groups are not modified, the powder will be dispersed unevenly in the rubber. The acidic groups will interact with alkaline catalysts to react. This will make rubber vulcanize.


You can use microsilica powder as a filler in PE, PVC, PP, PPO, and other materials when making plastics. It is widely used in construction and cars. It’s also used in electronics, insulation, farming, daily items, and the military.


Microsilica powder can be used as a filler in the coating industry. It can decrease the cost of coatings. It can also enhance their high temperature, acidity, alkali, wear, and weather resistance. It can be widely utilized in construction materials, automobiles, pipes, and hardware. It is also used in household appliances and other fields.


Silicone powder is an inorganic filler. It can reduce the expansion and shrinkage of the cured product when added to adhesive resin. It strengthens adhesion. It also improves its heat resistance, permeability, and heat dissipation. This enhances its adhesion and sealing.

The size of silica particles affects the viscosity. This also affects the adhesive settling. This affects the ease of working with the adhesive and its expansion after curing.

Artificial quartz stone

Silica powder is used as a filler in artificial quartz slabs. It reduces the use of unsaturated resin. It also improves the wear, acid, and alkali resistance of the slabs. It also makes them stronger.

Automobile honeycomb ceramics

The DPF (Diesel Particulate Filter) is made of honeycomb ceramic. This is for car exhaust. It is made of cordierite for diesel engine exhaust. It is made of alumina, silica powder, and other materials. They are mixed, formed, dried, and sintered.


The powder is good for cosmetics. It is used in lipstick, powder cake, and foundation cream.

The silica powder application areas have varying quality requirements. Our main focus will be in high-tech fields. These include high-end copper-clad laminates, coatings, adhesives, and insulating materials. They are made using spherical silica powder. Silica powder’s main future direction is refinement and functionality. It will specialize.

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