Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Tokuyama REOLOSIL QS-10 Hydrophilic Fumed Silica

Tokuyama REOLOSIL QS-10 is a hydrophilic fumed silica imported from Japan. It features low specific surface area and low viscosity, with efficient rheology control and reinforcement, suitable for coatings, sealants, silicone rubber and other fields.

Features Of Tokuyama REOLOSIL QS-10 Hydrophilic Fumed Silica

  1. Low specific surface area - uniform particle size, suitable for low-viscosity formulations without affecting fluidity

  2. Precise rheology control - adjust liquid thixotropy, prevent sagging and sedimentation, improve construction convenience

  3. Efficient reinforcement - enhance mechanical properties of silicone rubber and sealants, improve adhesion and durability

  4. Easy dispersion and processing - fluffy white powder, no agglomeration after addition, reduce processing difficulty

  5. High purity and low impurities - SiO₂>99.9%, extremely low impurities, ensure end-product quality

Typical Applications Of Tokuyama REOLOSIL QS-10 Hydrophilic Fumed Silica

  1. Coating systems - water-based/UV coatings, leather finishing, anti-sagging and anti-settling, improve stability

  2. Sealants/adhesives - thickening and thixotropy, enhance bonding strength, prevent filler sedimentation

  3. Silicone rubber products - reinforcement for HCR-RTV-2K silicone rubber, improve toughness and service life

  4. Powder products - anti-caking and flow aid, improve storage and processing performance

  5. Polishing and grinding - used as raw material for abrasives and polishes, enhance grinding effect

Specifications Of Tokuyama REOLOSIL QS-10 Hydrophilic Fumed Silica

BrandTokuyama (REOLOSIL Series)
Product TypeHydrophilic Fumed Silica (Amorphous Silica)
AppearanceFluffy white powder
SiO₂ Content (dry basis)>99.9%
BET Surface Area120–160 m²/g
Primary Particle SizeApproximately 15 nm
pH Value (4% suspension)4.2
Moisture Content<1.5%
Bulk DensityApprox. 50 g/L
44μm Sieve Residue<0.01%


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