Method for producing color and/or effect-producing...

B - Operations – Transporting – 05 – D

Patent

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Details

B05D 1/38 (2006.01) B05D 1/02 (2006.01) B05D 3/02 (2006.01) B05D 5/06 (2006.01) B05D 7/16 (2006.01)

Patent

CA 2400621

The invention relates to a method for producing color and/or effect-producing multilayer paints on car bodies by (1) applying a water-based paint on the body and drying or partially curing the resulting water-based paint layer; (II) applying an aqueous powder-slurry clearcoat on the dried or partially hardened water-based paint layer (I); and (III) curing the layers (I) and (II) by heat or heat and actinic radiation (dual cure). The aqueous powder- slurry clearcoat (II) is applied by (IIa) electrostatically painting the body exterior parts, and then (IIb) pneumatically spraying (compressed-air spraying) the body interior parts.

L'invention concerne un procédé de réalisation sur des carrosseries d'automobile de recouvrements de peinture multicouches colorés et/ou à effet, consistant à: (I) appliquer une peinture aqueuse sur la carrosserie et à faire sécher ou partiellement durcir la couche de peinture aqueuse ainsi formée; (II) appliquer un vernis incolore aqueux à base de dispersions de poudres sur la couche de laque aqueuse (I) partiellement durcie; et (III) faire durcir les couches (I) et (II) par chauffage ou chauffage et rayonnement actinique (double cuisson). L'application du vernis incolore aqueux à base de dispersions de poudres (II) se fait (IIa) par dépôt électrostatique sur les parties extérieures de la carrosserie, puis par (IIb) pulvérisation pneumatique (pulvérisation par air comprimé) sur les parties intérieures de la carrosserie.

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