PROCESS OF POWDER COATING ALUMINIUM SUBSTRATES
The present invention provides a process of powder coating aluminium substrate surfaces comprising the steps a) pre-treating the aluminium substrate surface by a color-less chemical treatment process, b) applying a clear powder coating composition based on at least one (meth)acrylic resin providing...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
28.04.2010
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention provides a process of powder coating aluminium substrate surfaces comprising the steps
a) pre-treating the aluminium substrate surface by a color-less chemical treatment process,
b) applying a clear powder coating composition based on at least one (meth)acrylic resin providing a low gloss of the cured coating in the range of 1 to 20 gloss units at 60 °, and curing the coating composition. The process according to the invention makes it possible to provide a desired special effect of the coated surface which meets the effect resulted using the anodizing process, called as "anodizing effect". A one-layer coating of the substrate is possible providing additionally a high appearance and smoothness of the cured coating, a strong adhesion to non-primered aluminium substrate surfaces as well as an excellent hardness, corrosion- resistance, weather resistance and light fastness of the cured coating. |
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Bibliography: | Application Number: EP20080828458 |