SurTec 650 chromium-free aluminium conversion coatings

SurTec 650 chromium-free aluminium conversion coatings

By using SurTec 650, a chromium-free passivation for aluminium, we can conduct high quality industrial cleaning. It is a high-value chemical product which is primarily used in the electronics, automotive and aerospace industries along with either as a pre-treatment or 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 passivation’s
  • also works on alloyed and casted aluminium
  • suitable as pre-treatment before lacquering, powder coating and gluing and
  • approved by GSB and QUALICOAT
  • easy to handle in immersion, spray and wipe, application produces an iridescent, faintly blue to tan 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

If you are looking for chromium-free passivation for aluminium using SurTec650, please get in touch with our friendly and professional team on 0191 438 6612