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

WACKER Hydrophilic Fumed Silica HDK T30P

WACKER HDK T30P is a hydrophilic fumed silica (400±40 m²/g BET) for water-based systems, offering superior thickening and thixotropy. It enhances HTV silicone rubber reinforcement and maintains transparency in unsaturated polyesters, ideal for coatings, adhesives, and cosmetics

Features Of WACKER Hydrophilic Fumed Silica HDK T30P

  1. High Surface Area: 400±40 m²/g BET for optimal rheology control

  2. Transparency: Low haze (<1%) in resin systems

  3. Silicone Reinforcement: Increases HTV rubber tensile strength by 35%

  4. Water Compatibility: Stable in aqueous formulations (pH 3.8-4.3)

  5. Thermal Resistance: Performs up to 300°C in cured systems

Typical Applications Of WACKER Hydrophilic Fumed Silica HDK T30P

  1. Coatings: Anti-settling agent in solvent-based paints

  2. Silicone Products: HTV/LSR rubber filler

  3. Adhesives: Viscosity stabilizer for PVC hot melts

  4. Inks: Rheology modifier for printing inks

Specifications Of  WACKER Hydrophilic Fumed Silica HDK T30P

BET Surface Area
400±40 m²/g
pH Value
3.8 - 4.3
Appearance
Fluffy white powder
Color
Transparent
Amorphous
SiO₂ crystalline structure
SiO₂ Silicon Content
99.8%
Refractive Index
1.46 Hydrophilic
Tapped Density
50g/l
Silane Alcohol Density
2SiOH/nm²
Resistance at a density of 50 - 60g
>10¹³



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