Conversion coatings chromium(VI)-free
Passivation of aluminium
The characteristics of aluminium surfaces can be improved exactly by depositing of a conversion coating. In this process, the non-uniform oxide film of the AL-surface is removed and replaced by a defined thin and resistant conversion layer.
The applied layers meet the requirements of the EU End of Life Vehicles Directive.
- Improved corrosion protection
- Excellent adhesion primer for paints and varnishes
- The formation of the natural oxide layer is inhibited by the application of this extremely thin layer
- These layers are an excellent basis for subsequent processes:
- Welding
- Paint
- Glue
- Vulcanize
- Environmentally friendly process
Among others, meets the requirements of::
Porsche
Porsche Standard PTL 7556
„Converse coating of Aluminium semis and aluminium components“
VW
VW Standard TL 824 27
„Washing and passivation of aluminium parts“
Mercedes-Benz
Mercedes-Benz delivery specification DBL 4952
„Delivery specification for Aluminium surfaces in car body“
Version 10
BMW
BMW PV 97022
Procedural requirement „Conversion layers on Aluminium“
JLRSTJLR.50.5002
Ti conversion layer (Alodine 2040 / Bonderite M-NT 2040)
| Umweltrelevanz: | Chrom(VI)-frei, entwickelt für die neuen europäischen Umwelt-Richtlinien |
| Schichtauflage: | 2 – 15 mg/m2 |
| Korrosionsschutz: | Lagerschutz bis 3 Monate |
| Eigenschaften: | Verbesserung Schweißbarkeit und Adhäsion (Kleber und Lacke) |
| Temperatur: | unempfindlich |
| Oberflächenwiderstand: | < 20 μOhm/cm2 |
| Anwendungsbereiche: | Aluminium-Knetlegierungen, Guss- und Schmiedeteile |
Chrom III (Surtec 650)
| Umweltrelevanz: | Chrom(VI)-frei, entwickelt für die neuen europäischen Umwelt-Richtlinien |
| Norm: | z. B. VW TL 13750 V111 |
| Schichtdicke: | 50-400 nm |
| Korrosionsschutz: | bis zu 720 h Salzsprühtest nach DIN EN IS0 9227 – NSS (legierungsabhängig) |
| Farbe: | schwach irisierende, sichtbare Schichten |
| Temperatur: | hitzebeständig bis zu 100°C |
| Oberflächenwiderstand: | < 0,8 mOhm/cm2 |
| Anwendungsbereiche: | Aluminium-Knetlegierungen, Guss- und Schmiedeteile |
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Direct contact
Hussein Ghazi
Phone +49 7021 5704–147Katrin Unterseher
Phone +49 7021 5704–155Internal sales office
Phone +49 7021 5704–155Direct contact sales office
Hussein Ghazi
Katrin Unterseher
Sales office