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

Tokuyama REOLOSIL PM-20L Hydrophobic Fumed Silica

Tokuyama REOLOSIL PM-20L is a hydrophobic fumed silica imported from Japan, surface-modified with polydimethylsiloxane. It features strong hydrophobicity, high thixotropy and excellent rheological stability, specially designed for polar solvent systems like epoxy, polyurethane and vinyl ester resins.

  • tokuyama reolosil pm 20l
  • tokuyama reolosil pm 20l

Features Of Tokuyama REOLOSIL DM-30S Hydrophobic Fumed Silica

  1. Strong hydrophobicity & moisture resistance – organically modified surface, hydrolysis-resistant, prolong formula storage stability

  2. High specific surface area reinforcement – ultra-fine particle structure, greatly enhance mechanical strength of silicone rubber

  3. Strong thixotropic thickening – quickly form 3D network, prevent sagging and sedimentation, improve construction fluency

  4. Ultra-high purity – extremely low metal ions, suitable for high-cleanliness scenarios like LED and toner

  5. Multi-scenario adaptability – flow aid and anti-caking functions, suitable for powder and liquid system

Typical Applications Of Tokuyama REOLOSIL DM-30S Hydrophobic Fumed Silica

  1. Paints & coatings – thickening and anti-settling for polar systems, improve film flatness and weatherability

  2. Printing inks – enhance thixotropy and pigment dispersion, improve printing clarity and color stability

  3. Sealants & adhesives – thickening and reinforcement, improve bonding strength and waterproof performance

  4. LED & electronic materials – high purity for encapsulation, ensure insulation and electronic stability

  5. Toner & powder materials – flow aid and anti-caking, adjust charging performance, improve processing effect

Specifications Of Tokuyama REOLOSIL DM-30S Hydrophobic Fumed Silica

BrandTokuyama (REOLOSIL Series)
Product TypeHydrophobic Fumed Silica
AppearanceFluffy white powder
SiO₂ Content≥99.8%
BET Surface Area210–250 m²/g
Carbon Content2.2%
pH Value (4% suspension)4.8
Moisture Content<0.5%


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