ADHESION OF PROTECTIVE DECORATIVE COAT FORMED BY SYSTEM „SADOLIN“ TO SPRUCE TIMBER IMPREGNATED WITH ANTISEPTIC COMPOUNDS

Abstract

Research has been carried out for the defining of the adhesion of the protective decorative coat, formed by the varnish system Sadolin, towards spruce timber, impregnated with antiseptic compounds Tanalit E 3492 and Resistol. The impregnation has been carried out by dipping in a tank with duration of 5, 15, 60 and 1440 min and in a autoclave by the method of vacuum-pressure. In this way in the surface layer a different dry quantity of antiseptic has been integrated. The applied system Sadolin consist of primmer (Sadolin base) and lacquer (Sadolin extra). The primer has been put in one layer and the lacquer in four layers. Adhesion has been tested by the method of put-out of glued metal cylinder, defined by Standard BDS EN 4624 (BDS 13088). It has been found that the quantity of the integrated antiseptic influences the adhesion of the coat to the timber base.