SurTec 644 Next Generation for Pre-treatment of Aluminum Wheels


  • Easy and robust process for pre-treatment bevor painting
  • Optimized paint adhesion and outstanding protection of the treated surface
  • Almost no sludge or incrustations at tank walls and thus less descaling operations needed
  • Significantly improved process stability since spray nozzles don’t become clogged due to the use of the cleaners SurTec 062 and SurTec 085
  • SurTec 642 Cr-free passivation creates a first conversion layer and is almost free of sludge
  • Conversion coating based on zirconium compounds and polymers
  • Free of chromium and phosphates
  • Usable for spray and immersion application

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