A process for producing a repair coating

B - Operations – Transporting – 05 – D

Patent

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B05D 3/06 (2006.01) B05D 5/00 (2006.01)

Patent

CA 2214281

This invention relates to a process for producing a multi-layer repair coating by the application of a transparent clear lacquer coat, which is unpigmented or which contains colourless pigment, to a predried or hardened colour- and/or effect-imparting base pigment coat, or by the application of a pigmented covering lacquer coat to an optionally precoated substrate. Binder vehicles which are hardenable exclusively by radical and/or cationic polymerisation are used for the production of the transparent clear lacquer coat or of the pigmented covering lacquer coat, and hardening is effected by means of pulsed, high-energy UV radiation.

La présente invention concerne un procédé pour produire un revêtement de réparation multicouches par l'application d'une couche de vernis-laque incolore transparent, qui est non pigmenté ou qui contient un pigment incolore, sur une couche de base pigmentée préséchée ou durcie conférant une coloration et/ou un effet, ou par l'application d'une couche de vernis-laque couvrant pigmenté sur un substrat ayant facultativement reçu une précouche. Des véhicules liants durcissables exclusivement par polymérisation radicalaire et/ou cationique sont utilisés pour la production de la couche de vernis-laque incolore transparent ou de la couche de vernis-laque couvrant pigmenté, et le durcissement est réalisé au moyen d'un rayonnement UV pulsé de haute énergie.

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