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HDK® T30P is a hydrophilic, synthetic, amorphous silica produced through flame hydrolysis. It is a standard product widely used in various industrial applications. HDK® T30P is a white colloidal powder of high purity. It serves as a reinforcing filler in elastomers, particularly silicone elastomers. However, it is not suitable for use in pharmaceuticals, food, and feed applications. It is essential to achieve a good dispersion of HDK® T30P to ensure optimal performance.

Functions: Reinforcement

Chemical Family: Silica

Features: Amorphous, High Purity, Hydrophilic

Synonyms: Fumed Silica, Silica, Silicon Dioxide

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Chemical Name
Plastics & Elastomers Functions
Technologies

Features & Benefits

Applications & Uses

Markets
Plastics & Elastomers End Uses
Application Details

HDK® T30P is used as a reinforcing filler in elastomers, mainly silicone-elastomers. HDK® T30P is not suitable for pharmaceuticals, food and feed. A good dispersion of HDK® T30P is a must to assure optimum performance.

Properties

Color
Physical Form
Appearance
White colloidal powder
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C, SiO₂)approx. 2.2 g/cm³DIN 51757
Loss of Weight (at 1000°C, 2hours (based on the substance dried at 105 °C for 2 hours))max. 2 %DIN EN ISO 3262-19
Refraction Index1.46
Silanol Group Density2SiOH/nm²
SiO₂ Content (based on the substance heated at 1000°C for 2 hours)min. 99.8%DIN EN ISO 3262-19
Specifications
ValueUnitsTest Method / Conditions
BET Surface270 - 330 m²/gDIN ISO 9277 DIN 66132
Loss on Drying (at 105°C, 2 hours)max. 1.5 %DIN EN ISO 787-2
pH (in 4% aqueous dispersion)3.8 - 4.3DIN EN ISO 787-9
Sieve Residue (min. 40 µm)max. 0.03 %DIN EN ISO 787-18, Mocker Apparatus
Tamped Densityapprox. 100 g/lDIN EN ISO 787-11
Properties

White colloidal powder of high purity.

Regulatory & Compliance

Certifications & Compliance

Safety & Health

Safety Notes

During transportation and processing HDK® T30P may cause electrostatic charges. Like other amorphous silicas HDK® T30P does not show either carcinogenic (IARC classification, Volume 68, 1997) or mutagenic properties.

Packaging & Availability

Country Availability
Packaging Type
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania
Packaging Information

Pallet with paper bags: 20 kg bags.

Storage & Handling

Storage Information

HDK® T30P should be stored in the original packaging in dry storage areas. Due to the high surface area HDK® adsorbs volatiles and should be protected from humidity and volatiles. If single bags are taken away from an original pallet, the remaining bags of this pallet must again be protected against humidity and volatiles.