Shanghai Semitech New Material Co., Ltd.
Address
1628 Lijing Road, Lingang New Area, 200000, Shanghai, China.
Address
1628 Lijing Road, Lingang New Area, 200000, Shanghai, China.
Precision additives engineered for anti-corrosive primers, marine coatings, and industrial topcoats. SEMITECH solutions meet rigorous AMPP performance standards for rugged durability.

Ensure perfect inter-coat adhesion in heavy-duty epoxy and PU systems. We recommend our untreated silica matting agent for multi-layer coatings where organic wax could compromise recoatability.
Prevent hard-packing in zinc-rich primers. Our anti-settling silica matting agent for industrial paint creates a robust thixotropic network that keeps heavy pigments in permanent suspension during storage.
Engineered for low-VOC systems. Our specialized silica offers excellent dispersibility in water without inducing micro-foam, maintaining the chemical resistance and integrity of the final industrial film.
Recognized as a premier silica flatting agent, our products provide highly efficient 60° and 85° gloss reduction for heavy machinery and automotive refinish applications, even at minimal dosages.
Solutions for heavy-duty protection and anti-corrosive formulations.
In high-performance industrial systems, wax-treated silica can migrate to the surface and cause inter-coat peeling. Our untreated silica matting agent (GMATT 100 Series) ensures maximum inter-coat adhesion, allowing subsequent layers to bond perfectly to the primer or intermediate coat.
Zinc dust is extremely heavy. Incorporating our fumed silica anti-settling agent (SEMISIL Series) builds a 3D thixotropic network. This structure holds heavy particles in place during storage but breaks down under shear for easy spray application, preventing "hard-packing" at the bottom of the drum.
No. SEMITECH synthetic silica is high-purity and chemically inert. When formulated as a silica flatting agent, it does not create pathways for moisture or electrolytes, ensuring the final film maintains its full anti-corrosive performance according to ISO 12944 standards.
Yes. Our specialized WB Series provides excellent dispersibility in water. It is surface-modified to wet out instantly, reducing the need for high-shear mixing that typically generates micro-foam, which can lead to pinholes in industrial finishes.
For precision "flatting" or low-sheen finishes, we recommend the GMATT 100 or 200 Series. These grades provide consistent gloss reduction at both 60° and 85° angles, ensuring a uniform matte appearance on large surfaces like earth-moving equipment or trailers.
For maximum adhesion and suspension in protective coatings, we recommend pairing the GMATT 100 Series with SEMISIL Hydrophilic Fumed Silica.