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HDK®

Pyrogenic silica is a mature product that WACKER has produced for over 50 years and is used by customers worldwide with great success. Thanks to our integrated production system with statistical process control and highly efficient reactor dynamics, we produce pyrogenic silica of exceptionally purity.

With HDK® you get not only great product performance, but also tailored customer service. Our specialists can offer you extensive applications support. They will work with you to develop process-focused solutions, providing comprehensive support with optimizing your products and formulations.

Advantages

HDK® pyrogenic silica improves the performance, stability and handling of your systems and formulations at all phases of production and processing. HDK® is ideal for adjusting the flow properties of liquids and giving powders optimum free-flow properties.

Application Areas

HDK® optimizes processes and products across a wide range of applications and industries:

  • Accumulators,
  • Composites,
  • Printing inks, developers,
  • Paints,
  • Joint fillers,
  • Animal feed,
  • Insulating gels,
  • Adhesives,
  • Foodstuffs,
  • Coatings,
  • Natural and synthetic rubber,
  • Food products,
  • Pharmaceuticals,
  • PVC,
  • Bulk goods,
  • Silicone elastomers,
  • Thermal insulation,
  • Toners, and
  • Paper coating and textile impregnation.

Product Recommendations

Products
Technical data
BET surface
HDK® D05 35 - 65 m²/g[1] 35 - 65 m²/g[1]
HDK® H13L approx. 110 m²/g[2] approx. 110 m²/g[2]
HDK® H15 approx. 120 m²/g[2] approx. 120 m²/g[2]
HDK® H17 approx. 90 m²/g[2] approx. 90 m²/g[2]
HDK® H18 approx. 120 m²/g[2] approx. 120 m²/g[2]
HDK® H20 approx. 170 m²/g[2] approx. 170 m²/g[2]
HDK® H2000 approx. 200 m²/g[3] approx. 200 m²/g[3]
HDK® H30 approx. 250 m²/g[2] approx. 250 m²/g[2]
HDK® I13 - -
HDK® N20 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® N20 NUTRITION 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® N20 P PHARMA 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® N20 PHARMA 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® N20D 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® N20P 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® N20PLUS 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® N20ST 175 - 225 m²/g[1] 175 - 225 m²/g[1]
HDK® S13 110 - 140 m²/g[1] 110 - 140 m²/g[1]
HDK® T30 270 - 330 m²/g[1] 270 - 330 m²/g[1]
HDK® T30P 270 - 330 m²/g[1] 270 - 330 m²/g[1]
HDK® T30PLUS 270 - 330 m²/g[1] 270 - 330 m²/g[1]
HDK® T40 360 - 440 m²/g[1] 360 - 440 m²/g[1]
HDK® V15 130 - 170 m²/g[1] 130 - 170 m²/g[1]
HDK® V15A 130 - 170 m²/g[1] 130 - 170 m²/g[1]
HDK® V15D 130 - 170 m²/g[1] 130 - 170 m²/g[1]
HDK® V16 130 - 170 m²/g[1] 130 - 170 m²/g[1]
HDK® V16D 130 - 170 m²/g[1] 130 - 170 m²/g[1]
Legend
[1] BET surface | DIN ISO 9277 DIN 66132,  [2] BET surface | DIN ISO 9277 DIN 66132 | of the hydrophobic silica,  [3] BET surface | DIN ISO 9277 DIN 66132 | area of hydrophilic silica