Applications
How fumed silica performs across industries and formulation types.
3d Printing Additive Manufacturing
Photopolymer resins for SLA, DLP, and inkjet 3D printing require precise viscosity control — fluid enough for layer spreading and recoating, structured…
Adhesives Sealants
Modern assembly lines and construction sites rely heavily on structural adhesives and sealants that must perform predictably under varying sheer forces.…
Coil Coatings
Coil coating is a continuous, highly automated process where metal strips are cleaned, treated, coated, and cured at extreme baking temperatures before being…
Construction Cementitious
From tile adhesives and waterproofing mortars to construction sealants and self-leveling compounds, fumed silica delivers the anti-sag thixotropy, water…
Cosmetics Personal Care
SEMISIL grades deliver precision rheology control, silky texture, anti-caking performance, and SPF stabilization across leave-on and rinse-off formulations.…
Electronics Encapsulants
Electronics potting compounds and encapsulants demand precise rheology — low enough viscosity to flow around components, high enough thixotropy to prevent…
Epoxy Flooring
Epoxy flooring requires carefully balanced rheology — low enough viscosity to self-level on horizontal surfaces, yet structured enough to prevent slumping on…
Food Feed Anti Caking
Food-grade fumed silica (E551 / silicon dioxide) is a globally approved anti-caking additive that keeps powdered foods free-flowing and clump-free. From table…
Fumed Silica As Anti Sagging Agent
Hydrophilic fumed silica at 1–3 wt% builds reversible hydrogen-bond networks that eliminate sag on vertical and overhead surfaces without sacrificing flow…
Fumed Silica As Anti Settling Agent
Fumed silica builds thixotropic gel networks that suspend pigments against gravity, replacing traditional anti-settling clays with lower loading and better…
Fumed Silica As Reinforcing Filler
Hydrophilic fumed silica at 200–380 m²/g BET transforms weak silicone gums into high-performance elastomers with tensile strengths exceeding 10 MPa.
Fumed Silica As Thixotropic Agent
Fumed silica creates reversible hydrogen-bond networks that deliver shear-thinning flow and rapid structure recovery in coatings, adhesives, and sealants.
Fumed Silica For 3d Printing Resins
Hydrophilic fumed silica at 1–5 wt% delivers thixotropic rheology control in vat photopolymerization resins, preventing filler settling and sharpening…
Fumed Silica For Acrylic Systems
Hydrophilic and hydrophobic fumed silica grades deliver shear-thinning rheology, pigment suspension, and mechanical reinforcement across solvent-borne…
Fumed Silica For Aerogel Production
High-BET fumed silica replaces costly supercritical drying in aerogel production, cutting capex while maintaining thermal conductivity below 20 mW/m·K.
Fumed Silica For Alkyd Coatings
Hydrophilic fumed silica at 0.5–2.0 wt% delivers shear-thinning rheology, pigment suspension, and sag resistance in solvent-borne alkyd systems without…
Fumed Silica For Battery Electrolytes
Hydrophilic fumed silica converts liquid Li-ion electrolytes into mechanically stable gel polymer systems while preserving ionic conductivity above 10⁻³ S/cm.
Fumed Silica For Cable Jacketing
Hydrophilic fumed silica enables higher mineral filler loading in halogen-free cable compounds while preserving mechanical integrity and promoting stable char…
Fumed Silica For Catalyst Support
High-purity fumed silica delivers 150–400 m²/g BET surface area with non-porous primary particles, enabling uniform metal dispersion for heterogeneous…
Fumed Silica For Cyanoacrylate
Surface-treated fumed silica converts liquid cyanoacrylate into stable gel adhesives that hold on vertical surfaces without dripping.
Fumed Silica For Dental Composites
Silanized fumed silica at 5–15 wt% loading delivers the thixotropy, radiolucency control, and sub-micron polish retention that light-cure dental composites…
Fumed Silica For Epoxy Systems
Fumed silica delivers shear-thinning rheology, anti-sag performance and mechanical reinforcement across DGEBA, cycloaliphatic and novolac epoxy systems.
Fumed Silica For Fertilizer Anti Caking
Hydrophilic fumed silica at 0.1–0.5 wt% coats NPK granules to block moisture bridges and maintain free-flow through bulk storage and handling.
Fumed Silica For Flame Retardants
Hydrophilic fumed silica at 1–3 wt% loading strengthens intumescent char layers, raises LOI by 2–4 points, and doubles anti-drip performance in halogen-free…
Fumed Silica For Grease Thickener
Hydrophobic fumed silica delivers shear-stable thixotropy in non-soap greases, maintaining consistency from −40 °C to 300 °C where lithium and calcium soaps…
Fumed Silica For Investment Casting
Fumed silica delivers thixotropic rheology control and high-temperature dimensional stability in colloidal silica-based investment casting slurries.
Fumed Silica For Mma Adhesives
Hydrophilic and treated fumed silica grades deliver thixotropy, anti-sag, and gap-filling control in two-part methacrylate structural adhesives for marine…
Fumed Silica For Mold Release
Fumed silica delivers thixotropic suspension and anti-settling performance in semi-permanent and sacrificial mold release formulations across FRP, injection…
Fumed Silica For Paper Coatings
High-surface-area fumed silica builds microporous coating layers that absorb inkjet inks instantly, delivering photo-quality color density and resolution on…
Fumed Silica For Phenolic Resin
Hydrophilic fumed silica delivers thixotropic rheology, anti-settling control, and thermal reinforcement in novolac and resole phenolic systems up to 1000 °C.
Fumed Silica For Polysulfide Sealants
Hydrophilic and hydrophobic fumed silica grades deliver thixotropy, anti-sag, and moisture barrier performance across IGU, aerospace, and marine polysulfide…
Fumed Silica For Printing Inks
Hydrophilic and treated fumed silica grades deliver shear-thinning rheology, pigment suspension, and dot sharpness across flexo, gravure, screen, and inkjet…
Fumed Silica For Pu Systems
Hydrophilic and hydrophobic fumed silica grades control sag, settling and mechanical strength across 1K moisture-cure and 2K polyurethane formulations.
Fumed Silica For Silicone Sealants
Fumed silica provides the dual reinforcement and sag resistance that one-component silicone sealants require for structural glazing and weatherproofing joints.
Fumed Silica For Spray Drying
Hydrophilic fumed silica at 0.5–2 wt% loading transforms spray-dried powders from cohesive fines into free-flowing granules with controlled bulk density.
Fumed Silica For Toner Cartridges
Hydrophobic fumed silica at 7–40 nm primary particle size governs toner flowability, triboelectric charge stability, and long-run print consistency in…
Fumed Silica For Uv Curable Systems
How fumed silica surface chemistry governs rheology, cure speed, and film clarity in solvent-free UV and EB systems.
Fumed Silica For Vinyl Ester Resin
Hydrophobic fumed silica delivers sag-free vertical lamination and stable gel coats in vinyl ester FRP systems without compromising moisture resistance.
Industrial Paints
Silica Matting Agent selection is critical for formulating high-performance industrial paints. At SEMITECH, we understand that balancing aesthetics with…
Leather Finishes
Modern consumers demand synthetic leather that looks, feels, and performs like the real thing, without the harmful environmental footprint. To eliminate the…
Marine Coatings
Marine and heavy-duty protective coatings face extreme demands — thick film builds (100–500 µm DFT), aggressive environments (salt spray, UV…
Pharmaceuticals
Fumed silica — silicon dioxide (SiO₂) produced by flame hydrolysis — is an indispensable excipient in tablet formulation, capsule filling, and nutraceutical…
Powder Coatings
Powder coating technology requires precision in dry-blend flowability to ensure uniform application and high-quality finishes. Unlike liquid systems, the…
Silicone Rubber
Base silicone polymers (polysiloxanes) exhibit very low mechanical strength on their own. To achieve industrial utility in High Consistency Rubber (HCR) and…
Specialty Inks Batteries
In high-tech manufacturing, Pyrogenic Silica is the cornerstone of precision rheological control. SEMITECH delivers world-class pyrogenic silica solutions…
Thermal Insulation
Vacuum insulation panels demand core materials that maintain ultralow thermal conductivity under long-term vacuum conditions and resist structural collapse.…
Tires Rubber
Hydrophilic and hydrophobic fumed silica grades deliver exceptional reinforcement in tire treads, technical rubber goods, and elastomeric compounds…
Unsaturated Polyester Resin
The manufacturing of Fiberglass Reinforced Plastics (FRP) — ranging from luxury yacht hulls and wind turbine blades to sanitary ware — relies heavily on the…
Uv Coatings
Formulating 100% solid UV coatings, such as those used in high-speed wood flooring or PVC production, presents unique rheological challenges. Standard…
Wire Cable
Fumed silica is the critical reinforcing filler in HTV and RTV silicone rubber compounds used for high-voltage, high-temperature, and flame-retardant wire and…
Wood Coatings
Formulating high-end wood coatings requires a delicate balance between gloss reduction and optical clarity. At SEMITECH, we engineer the ultimate silica…