Silica Matting Agent CAS 7631-86-9

Physicochemical Properties

Typical Applications

• Wood & Furniture Coatings: Provides excellent transparency and a smooth, natural surface feel. It is widely used in clear wood finishes where maintaining the visibility of the wood grain without hazing is critical.
• Industrial Finishes & Coil Coatings: Offers high matting efficiency and improves the scratch and mar resistance of industrial metal coatings and baking enamels.
• Architectural Paints: Incorporated into interior and exterior decorative paints to reliably control gloss levels, achieving consistent matte, eggshell, or satin finishes.
• Printing Inks & Leather Finishes: Controls surface reflection while maintaining film flexibility, color vibrancy, and adhesion in flexible substrates.

Packaging

As a highly porous micronized powder, this product is standardly packaged in 10kg or 15kg multi-wall paper bags equipped with an inner polyethylene liner. This packaging is specifically designed to prevent moisture ingress and external contamination. The bags are palletized, stretch-wrapped, and prepared for secure bulk transport. Packaging configurations can be aligned with specific warehouse handling capacities and order volumes.

Storage

Store in a cool, dry, and well-ventilated indoor warehouse. Synthetic amorphous silica is inherently hygroscopic; therefore, pallets must be kept off the floor and strictly protected from high-humidity environments and direct water contact. Bags must be tightly sealed immediately after partial use to prevent moisture absorption, which can negatively impact dispersion efficiency and matting performance.

FAQ

• What is the functional difference between wax-treated and untreated grades?Wax-treated grades are designed to improve anti-settling properties, preventing the formation of hard sediments during the long-term storage of the liquid coating. Untreated grades typically offer faster dispersion and superior optical clarity in clear coats.
• Is this matting agent compatible with waterborne systems?Yes, our silica matting agents exhibit broad compatibility and can be successfully formulated into waterborne, solvent-borne, and 100% solid UV-curable coating systems.
• How should this powder be incorporated during coating manufacturing?It is engineered for easy dispersion and is typically incorporated during the let-down stage using standard high-speed dispersion (HSD) equipment. Grinding is usually not required and should be avoided to prevent over-shearing the particles.
• Do you provide samples for formulation matching?Yes, we provide representative samples along with the Technical Data Sheet (TDS) and Safety Data Sheet (SDS) so your laboratory can conduct dispersion testing and gloss-level matching prior to commercial procurement.