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Rheology Control

With HDK® pyrogenic silica, liquid coating formulations retain an optimum rheology profile throughout their product life cycle. During storage, settling is prevented while, in the application phase, leveling and sagging behavior are perfectly balanced.

How the three-dimensional HDK® network works

Benefits:

  • Rheology control
  • Antisettling effects
  • Enhanced free flow in powder coatings

Applications:

  • Anticorrosive coatings
  • Wood coatings
  • Automotive coatings
  • Coil coatings
  • Heat-resistant coatings
  • Marine and protective coatings
  • Strippable coatings
  • Windturbine coatings
  • Plastic coatings

Product Recommendations

Products
Technical data
BET surface
HDK® H13L approx. 110 m²/g[1] approx. 110 m²/g[1]
HDK® H15 approx. 120 m²/g[1] approx. 120 m²/g[1]
HDK® H17 approx. 90 m²/g[1] approx. 90 m²/g[1]
HDK® H18 approx. 120 m²/g[1] approx. 120 m²/g[1]
HDK® H20 approx. 170 m²/g[1] approx. 170 m²/g[1]
HDK® H30 approx. 250 m²/g[1] approx. 250 m²/g[1]
HDK® N20 175 - 225 m²/g[2] 175 - 225 m²/g[2]
HDK® T30 270 - 330 m²/g[2] 270 - 330 m²/g[2]
HDK® T30PLUS 270 - 330 m²/g[2] 270 - 330 m²/g[2]
HDK® T40 360 - 440 m²/g[2] 360 - 440 m²/g[2]
Legend
[1] BET surface | DIN ISO 9277 DIN 66132 | of the hydrophobic silica,  [2] BET surface | DIN ISO 9277 DIN 66132,  [] Suited,  [] Well suited,  [] Ideally suited