Multi-layer coating system having a top layer comprising a two-component reaction resin
Assigneewedi GmbH
InventorStephan Wedi
Life of this patent
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Abstract
The invention relates to a multi-layer coating system for a body (1) made of a building material, wherein the coating system has a sandwich-like design comprising at least three layers, namely: a first base layer (2) that comes in contact with the body, comprising a fiber-free and granule-free two-component epoxy resin; an intermediate layer comprising a flat random fiber non-woven material (3); and a sand-finished top layer (4) comprising a fiber-free and granule-free two-component epoxy resin. The invention further relates to a method for producing such a coating system.
Claims18
A multi-layer coating system for a body, said body being a substrate or base for a building material of the coating system, at least one layer of the coating system being a covering layer that comprises a two-component epoxy resin which is sand-finished with hard granules, characterized in that the coating system has a sandwich-like design comprising at least three layers, namely:
- a first base layer (2) that comes in contact with the body and comprises a fiber-free and granule-free two-component epoxy resin;
- an intermediate layer that comprises a flat random fiber non-woven material (3), and a sand-finished top layer (4) comprising a fiber-free and granule-free two-component epoxy resin.
A method for producing a coating system on a body, the latter comprising a building material that forms a substrate for the coating system, characterized in that a two-component compound that cures into an epoxy resin compound is sprayed onto the surface of the body, and subsequently fibers are blown onto the layer, which still has low viscosity, by means of compressed air, or are sprinkled thereon, so as to bond with the still uncured epoxy resin layer, whereupon the epoxy resin layer is cured by way of cold and/or hot curing, whereafter a second two-component epoxy resin compound is applied in a low-viscosity state, so that the layers bond to each other by way of the epoxy resin penetrating into the random fibers in the low-viscosity state and being cured, and the top layer is sand-finished at the exterior.
A coated building board, comprising a substrate (1), which includes rigid plastic foam having a base layer applied to one side thereof that comprises a cured epoxy resin compound bonded to a random fiber layer (3), in which the layers have been bonded to each other by way of the epoxy resin penetrating into the random fiber layer in the low-viscosity state and being cured so as to form a top layer (4), wherein the latter is provided with a sand-finishing (5) at the exterior.
Dependencies are inferred from the claim text.