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Aerosil 200 Fumed Silica Thickener is a high-purity fumed silica produced by flame hydrolysis of silicon tetrachloride, widely used as a rheology modifier and thickener in coatings, adhesives, cosmetics, and sealants.
It features an extremely high surface area and thixotropic properties, making it an ideal viscosity builder and anti-settling agent.
Aerosil 200 enhances suspension stability, texture, and printability while maintaining clarity and transparency in transparent systems.
CAS Number: 112945-52-5
EC Number: 310-127-6
Molecular Formula: SiO₂
Molecular Weight: 60.08 g/mol (monomer unit)
Synonyms: Aerosil 200, Cab‑O‑Sil TS‑720, Fumed Silica 200, Hydrophobic Fumed Silica (if surface-treated), Pyrogenic Silica, Silicon Dioxide Thixotropic Agent, Fumed Silica Thickener, Hydrophilic/Altered hydrophilic silica grade, Aerosil 200, Aerosil‑200, AEROSIL 200, AEROSIL‑200, Aerosil 200 hydrophilic fumed silica, Evonik Aerosil 200, Pyrogenic silica 200 m²/g, Fumed silica 200 grade, Silicon dioxide fumed, Amorphous fumed silica 200, Silica fume 200, Hydrophilic pyrogenic silica, Colloidal anhydrous silica, Silicon (IV) oxide aerosol, Hydrophilic silica powder, Flame‑hydrolysis silica 200, Silica rheology modifier, Silica thickener 200, Silica thixotrope N20, Silica flow‑aid N20, Silica reinforcing filler 200, fumed SiO₂ 200 m²/g, Aerosil hydrophilic 200, Aerosil pharmaceutical grade 200, Aerosil food grade 200 (where permitted), Aerosil coating grade 200
APPLICATIONS
Aerosil 200 Fumed Silica Thickener is used to increase viscosity in coatings.
Aerosil 200 Fumed Silica Thickener is added to adhesives to enhance thixotropic properties.
Aerosil 200 Fumed Silica Thickener is used in sealants to improve sag resistance.
Aerosil 200 Fumed Silica Thickener is incorporated into silicone rubber for reinforcement.
Aerosil 200 Fumed Silica Thickener is used in inks to stabilize pigments.
Aerosil 200 Fumed Silica Thickener is used in epoxy systems to prevent settling.
Aerosil 200 Fumed Silica Thickener is applied in gel batteries as a rheology modifier.
Aerosil 200 Fumed Silica Thickener is used in cosmetics to adjust texture.
Aerosil 200 Fumed Silica Thickener is used in nail polish for consistent viscosity.
Aerosil 200 Fumed Silica Thickener is used in skincare creams to create a matte finish.
Aerosil 200 Fumed Silica Thickener is used in paints to prevent dripping.
Aerosil 200 Fumed Silica Thickener is used in hair care products for improved stability.
Aerosil 200 Fumed Silica Thickener is added to pharmaceuticals as a glidant.
Aerosil 200 Fumed Silica Thickener is used in tablet formulations for flowability.
Aerosil 200 Fumed Silica Thickener is used in ointments for thickening.
Aerosil 200 Fumed Silica Thickener is used in 3D printing resins to adjust flow.
Aerosil 200 Fumed Silica Thickener is used in gel coats to prevent sagging on vertical surfaces.
Aerosil 200 Fumed Silica Thickener is used in industrial lubricants for thickening.
Aerosil 200 Fumed Silica Thickener is used in resin pastes to improve application properties.
Aerosil 200 Fumed Silica Thickener is added to greases to increase stability.
Aerosil 200 Fumed Silica Thickener is used in construction chemicals for flow control.
Aerosil 200 Fumed Silica Thickener is used in polyurethane foam systems for anti-settling.
Aerosil 200 Fumed Silica Thickener is used in adhesives for shear-thinning properties.
Aerosil 200 Fumed Silica Thickener is used in pigments for improved dispersion.
Aerosil 200 Fumed Silica Thickener is applied in dental pastes for texture consistency.
Aerosil 200 Fumed Silica Thickener is used in modeling clays for pliability.
Aerosil 200 Fumed Silica Thickener is added to epoxy grout for uniform mixing.
Aerosil 200 Fumed Silica Thickener is used in agrochemicals for suspension stabilization.
Aerosil 200 Fumed Silica Thickener is used in liquid fertilizers to improve flowability.
Aerosil 200 Fumed Silica Thickener is used in fragrance formulations to create dry-flowing powders.
Aerosil 200 Fumed Silica Thickener is added to UV-curable inks to prevent pigment settling.
Aerosil 200 Fumed Silica Thickener is used in heat-curing adhesives for structural bonding.
Aerosil 200 Fumed Silica Thickener is used in emulsion paints to enhance brushing consistency.
Aerosil 200 Fumed Silica Thickener is used in solvent-based lacquers for better sag control.
Aerosil 200 Fumed Silica Thickener is added to antiperspirants to create a silky skin feel.
Aerosil 200 Fumed Silica Thickener is used in technical ceramics for uniform particle dispersion.
Aerosil 200 Fumed Silica Thickener is used in conductive pastes for stability.
Aerosil 200 Fumed Silica Thickener is applied in bio-based resins for consistent viscosity.
Aerosil 200 Fumed Silica Thickener is used in electrochemical pastes to prevent component separation.
Aerosil 200 Fumed Silica Thickener is used in high-viscosity suspensions for improved application.
Aerosil 200 Fumed Silica Thickener is added to metallic paints for uniform flake distribution.
Aerosil 200 Fumed Silica Thickener is used in reactive polyurethane adhesives for processing ease.
Aerosil 200 Fumed Silica Thickener is used in glass fiber resins for structural uniformity.
Aerosil 200 Fumed Silica Thickener is incorporated into photoresist formulations for microelectronics.
Aerosil 200 Fumed Silica Thickener is used in pigment pastes to prevent caking.
Aerosil 200 Fumed Silica Thickener is used in two-component systems for anti-settling.
Aerosil 200 Fumed Silica Thickener is added to cosmetic powders for improved flow.
Aerosil 200 Fumed Silica Thickener is used in industrial hand cleaners to stabilize the gel matrix.
Aerosil 200 Fumed Silica Thickener is used in caulking compounds to improve consistency.
Aerosil 200 Fumed Silica Thickener is used in solder pastes for printing accuracy.
Aerosil 200 Fumed Silica Thickener is used in chemical polishing agents.
Aerosil 200 Fumed Silica Thickener is used in thermal interface materials to ensure uniform application.
Aerosil 200 Fumed Silica Thickener is used in flavor oil suspensions in the food industry.
Aerosil 200 Fumed Silica Thickener is used in defoamers for controlled viscosity.
Aerosil 200 Fumed Silica Thickener is used in polyester resins to maintain application thickness.
Aerosil 200 Fumed Silica Thickener is used in plasticizers for controlled rheology.
Aerosil 200 Fumed Silica Thickener is added to shampoos for thickening.
Aerosil 200 Fumed Silica Thickener is used in mascara for uniform application.
Aerosil 200 Fumed Silica Thickener is used in ceramic glazes to avoid sedimentation.
Aerosil 200 Fumed Silica Thickener is used in pesticide formulations for better dispersion.
Aerosil 200 Fumed Silica Thickener is used in body lotions to avoid phase separation.
Aerosil 200 Fumed Silica Thickener is added to car care waxes for smooth application.
Aerosil 200 Fumed Silica Thickener is used in polish pastes for rheology control.
Aerosil 200 Fumed Silica Thickener is used in brake fluids to stabilize formulations.
Aerosil 200 Fumed Silica Thickener is used in casting resins for uniform dispersion.
Aerosil 200 Fumed Silica Thickener is used in anti-corrosive paints for improved thickness.
Aerosil 200 Fumed Silica Thickener is used in flexographic inks for transfer efficiency.
Aerosil 200 Fumed Silica Thickener is used in waterborne coatings to prevent settling.
Aerosil 200 Fumed Silica Thickener is used in cementitious adhesives for sag resistance.
Aerosil 200 Fumed Silica Thickener is used in magnetic tapes for dispersion stabilization.
Coatings, Inks & Paints:
Prevents pigment settling, improves sag resistance, and enhances rheology.
Adhesives & Sealants:
Increases viscosity, reduces slump, and enhances thixotropy.
Cosmetics & Skincare:
Provides smooth texture, sensory enhancement, and suspension of pigments in lotions and creams.
Plastics & Composites:
Acts as a reinforcing filler and anti-blocking agent in resins.
Industrial Lubricants & Oils:
Stabilizes suspensions and improves structural integrity.
Pharmaceutical Topicals:
Suspends particles and supports cream/gel consistency.
Food Applications (e.g., powders):
Used as an anti-caking or flow-enhancing agent (GRAS status).
Electronics & Sealant Formulations:
Enhances dielectric properties and gap-filling abilities.
DESCRIPTION
Aerosil 200 Fumed Silica Thickener is a high-purity, amorphous silicon dioxide.
Aerosil 200 Fumed Silica Thickener is produced by flame hydrolysis of silicon tetrachloride.
Aerosil 200 Fumed Silica Thickener has a very high surface area and low bulk density.
Aerosil 200 Fumed Silica Thickener is a white, fluffy, and ultrafine powder.
Aerosil 200 Fumed Silica Thickener is hydrophilic and disperses easily in many systems.
Aerosil 200 Fumed Silica Thickener acts as a rheological control additive.
Aerosil 200 Fumed Silica Thickener enhances suspension stability and prevents settling.
Aerosil 200 Fumed Silica Thickener is compatible with water-based and solvent-based systems.
Aerosil 200 Fumed Silica Thickener improves storage stability and process control.
Aerosil 200 Fumed Silica Thickener is widely used in industrial, pharmaceutical, and cosmetic applications.
Aerosil 200 is a fluffy, white, lightweight powder with extremely low bulk density.
The particles are amorphous, non-porous, and form a high surface area network (~200 m²/g), creating a highly viscous yet lightweight structure.
When added to liquids, even at low concentrations (0.5–3 %), Aerosil 200 develops a three-dimensional network that transforms liquids into pastes or gels via hydrogen bonding or hydrophobic interactions (if treated).
This fumed silica is chemically inert, thermally stable, non-flammable, and compatible with a wide range of solvents, resins, oils, and water-based systems.
Often used in surface-treated (e.g., hydrophobic) or untreated (hydrophilic) forms, enabling compatibility with polar or non-polar systems.
Aerosil 200 helps reduce syneresis in gels, provides slip, and improves product feel in personal care formulations.
PROPERTIES
Appearance: White, fluffy powder
Surface Area: ~200 m²/g
Primary Particle Size: 12 nm median
Bulk Density (tapped): ~50 kg/m³
pH (1 % aqueous slurry): ~3.7–4.5
Loss on Ignition (at 1000 °C): <10 %
Moisture Content: <0.5 %
Solubility: Insoluble in water and organic solvents
Thermal Stability: Up to 1000 °C
Reactivity: Chemically inert; oxidizer at very high temperatures
Storage Conditions: Store in a cool, dry place; avoid moisture ingress
FIRST AID
Inhalation:
Move the person to fresh air; fumed silica dust may irritate respiratory tract.
Seek medical attention if coughing, wheezing, or breathing difficulties occur.
Skin Contact:
Wash off with water; prolonged skin contact may cause mild dryness or irritation.
Eye Contact:
Rinse immediately with plenty of water for at least 15 minutes.
Seek medical attention if irritation persists.
Ingestion:
Not expected to cause harm; rinse mouth and drink water if ingested.
Seek professional advice if discomfort develops.
HANDLING AND STORAGE
Handling:
Avoid dust generation; use local exhaust ventilation or dust control measures.
Wear dust mask or respirator, safety glasses, and gloves when handling powder.
Storage:
Store in sealed containers in a dry, well-ventilated area.
Protect from moisture—powder may cake upon exposure to humidity.
Spill Procedures:
Avoid raising dust; sweep or use vacuum with HEPA filter.
Store rinsed residue with waste and dispose of following local regulations.
Disposal:
Fumed silica is not classified as hazardous waste; dispose of as non-toxic inorganic material unless contaminated.
