Method of producing multi-layer coatings

Details Method of producing multi-layer coatings Method of producing multi-layer coatings

1998-11-05

2000-02-15

Dudash, Diana

Coating processes

Applying superposed diverse coating or coating a coated base

Synthetic resin coating

427142, 427409, B05D 136, B05D 716

Patent

active

06025033&

ABSTRACT:
A method of producing a multi-layer coating comprising the application of a color- and/or effect-imparting base lacquer coat of an aqueous base lacquer, the wet-into-wet-application on to the aqueous base lacquer coat of a clear lacquer coat of a two-component polyurethane clear lacquer, which is produced shortly before the application thereof by mixing a master lacquer component, which contains hydroxy-functional binder vehicles and solvents, with a polyisocyanate component, and joint stoving of the aqueous base lacquer and clear lacquer coats, wherein the two-component polyurethane clear lacquer which is used contains 0.01 to 1% by weight, with respect to the clear lacquer solids, of one or more additives with a surface tension-lowering effect, wherein at least 25% by weight of the additives with a surface tension-lowering effect is contained in the polyisocyanate hardener component before mixing.

REFERENCES:
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patent: 5166272 (1992-11-01), Burks et al.
patent: 5294665 (1994-03-01), Pedain et al.
patent: 5342882 (1994-08-01), Gobel et al.
patent: 5418264 (1995-05-01), Obloh et al.
patent: 5496642 (1996-03-01), Martinez
patent: 5910369 (1999-06-01), Macris et al.

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