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An environmetally acceptable chromate replacement for the passivation of aluminium surfaces

Objective

The proposal addresses the replacement of toxic hexavalent chromate compounds in the formation of passive films for corrosion protection on aluminium and its alloys. The aim is to develop a low-toxicity replacement processing solution to give the level of corrosion resistance and paint adhesion currently provided by chromate-containing formulations.
The objectives are to:
(a) establish the most effective chromate-replacement for passivating aluminium/aluminium alloy surfaces
(b) optimize the treatment in terms of its operating parameters e.g. treatment time, solution composition, pH, temperature
(c) develop the coating's characteristics in terms of adhesion of subsequent organic films and
(d) develop the process to a level where industrial specimens can be passivated in small batch trials. passivated surfaces will be subjected to partner acceptance trials.

Call for proposal

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Coordinator

ANOTECH (LEICESTER) LTD.
EU contribution
No data
Address
70 FRIDAY STREET
LE1 3BW LEICESTER
United Kingdom

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Total cost
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Participants (1)