Our system has noticed that you are based in United States, but that the current country setting is Sri Lanka. Do you still want to change your country?

Automotive Coatings

HDK® pyrogenic silica serves as a rheological additive for automotive finishes and refinishes. With a comprehensive range of hydrophilic and hydrophobic grades, there is an optimum solution for every application. The typical HDK® dosage of 0.6 to ~1% allows for very efficient rheological control.


  • PDMS-free
  • Optimal balance of thixotropy and leveling
  • Excellent rheology control in 2K PUR coatings
  • Superior optical transparency
  • Improved anticorrosion performance
  • Superb free-flow agent in powder coatings
  • Improved storage stability


  • Semi-polar and polar coatings
  • Automotive base coats and clear coats
  • Powder coatings