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

WACKER Hydrophilic Fumed Silica HDK T40 NUTRITION

WACKER HDK T40 NUTRITION is a food-grade hydrophilic fumed silica (400±40m²/g) for aqueous systems. This high-purity additive provides superior thickening and thixotropy while maintaining transparency in HTV silicones and food-contact coatings.

Features Of WACKER Hydrophilic Fumed Silica HDK T40 NUTRITION

  1. Food Safety: Complies with FDA 21 CFR 172.480 for food applications

  2. Rheology Control: 400±40m²/g surface area for optimal viscosity

  3. Optical Clarity: <1% haze in resin systems

  4. Thermal Stability: Withstands 250°C in HTV rubber processing

  5. Moisture Resistance: <1.5% water content (105°C)

Typical Applications Of WACKER Hydrophilic Fumed Silica HDK T40 NUTRITION

  1. Food Packaging: Anti-settling agent for edible coatings

  2. Silicone Products: Reinforcing filler for food-grade HTV rubber

  3. Cosmetics: Thickener for personal care products (INCI: Silica)

  4. Industrial Coatings: Rheology modifier for water-based paints

Specifications Of WACKER Hydrophilic Fumed Silica HDK T40 NUTRITION

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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