Skip to content

SurTec 650V

SurTec 650V

Trivalent Chromium Conversion Coating - Visible

SurTec 650V is a trivalent Chromium passivation treatment for Aluminium and Magnesium, which produces a visible blue-grey to yellow iridescent layer. It is hexavalent Chromium free.

  • SurTec 650V provides excellent corrosion protection.
  • REACH, RoHS and WEEE compliant.
  • Designed for immersion application but can also be spray or wipe applied.
  • Can be used to repair anodised coatings and refresh them before painting.
  • Approved for aerospace use to MIL-DTL-81706 and MIL-DTL-5541F. Also approved by Qualicoat for architectural aluminium.
  • Supplied as a concentrated liquid.
  • Low electrical resistance.
  • Drop-in replacement for hexavalent chrome passivation.


Download a Technical Data Sheet for SurTec 650V here.

For a Safety Data Sheet, or to buy SurTec 650 in the UK, please contact us.

Back to Pretreatment.

SurTec logo
Powder coating of metal parts. A woman in a protective suit sprays powder paint from a gun on metal products
Metallic pieces galvanized on zinc bath