PreCoat A32: Passivation system for aluminium
Application of PreCoat A32 creates a passivation layer on the aluminium surface. This passivation layer provides so called bare corrosion protection, in other words corrosion protection of the aluminium without a coating. The characteristics of this layer are comparable with hexavalent chromium based passivation layers and some cases it even outperforms chromium-6 corrosion protection values. The product has been independently tested by a research institute affiliated to the European Space Agency (ESA).The outcome of this research is that it has been identified as one the most promising chromium-free anticorrosion pretreatments currently available worldwide.
Common application areas for PreCoat A32 are: Automotive, Aerospace, Electronics and Architectural/Construction industry
PreCoat A32 provides superior corrosion resistance and durable adhesive bonding with chromium-free organic (powder)- coatings and structural adhesives. For application in the electronics industry it’s high electrical surface conductivity is advantageous.
Extensive laboratory and field testing demonstrates that PreCaoat A32 meets or exceeds the quality standards described in Qualicoat, GSB and MIL-DTL 81706B/5541. Therefore it is a very good alternative to hexavalent chromium based pretreatment and passivation systems.