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

WACKER Hydrophilic Fumed Silica HDK V15D

WACKER HDK V15D is a hydrophilic fumed silica (400±40m²/g) for water-based systems. It delivers superior thickening and thixotropy while maintaining transparency in HTV silicones and unsaturated polyesters, ideal for coatings and adhesives.

Features Of WACKER Hydrophilic Fumed Silica HDK V15D

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

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

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

  4. Water Compatibility: Stable in aqueous formulations (pH 3.5-4.5)

  5. Thermal Resistance: Performs up to 250°C in cured systems

Typical Applications Of  WACKER Hydrophilic Fumed Silica HDK V15D

  1. Architectural Coatings: Thixotrope for low-VOC waterborne paints

  2. Silicone Products: Reinforcing filler for HTV/LSR rubber

  3. Composite Resins: Anti-sag agent in UP resin gel coats

  4. Adhesives: Viscosity stabilizer for PVC hot melts

Specifications Of WACKER Hydrophilic Fumed Silica HDK V15D

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


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *