Surtec 650

SurTec 650 high-value chemical products and processes for industrial cleaning as well as  pre-treatment, finishing and post-treatment in the electroplating industry…

SurTec 650 Properties

  • hexavalent chromium free passivation for aluminium
  • suitable as post-treatment of anodic coatings
  • suitable as conversion coating of magnesium
  • liquid concentrate, based on trivalent chromium
  • excellent bare corrosion protection comparable to hexavalent passivations
  • also works on alloyed and casted aluminium
  • suitable as pretreatment before lacquering, powder coating and gluing and
  • approved by GSB and QUALICOAT
  • easy to handle in immersion, spray and wipe applicationproduces an iridescent, faintly blue to tan and visible layer
  • meets or exceeds MIL-DTL-81706B and MIL-DTL-5541F for bare corrosion (336 h in NSS per ASTM B-117, respectively, DIN EN ISO 9227)
  • low contact resistance: < 5000 μOhm per square inch per MIL-DTL-81706B
  • heat resistant inorganic passivation layer (see “hints”)
  • applied for US-patent: 6,375,726; 6,511,532; 6,521,029; 6,527,841
  • IMDS-number: 30429267


More information about SURTEC 650…


SALT Test Technical Data Sheet