AUXILIARIE - Royal Talens

Talens Retouching varnish 004Purpose: Reviving sunken-in (matt) areas and providing temporary protection(temporary final varnish) of oil paintings not entirely dryComposition: Synthetic resin, white spirit• Apply sparingly• Does not affect the further drying time of the paint film• As temporary protective varnish do not apply until after 2-3 months• Dries in a few hours• Does not yellow• Can be thinned with white spirit• Clean brushes with white spirit• Highly flammable (in spray can: extremely flammable)• Available in: 75 ml, 250 ml, 400 ml (spray can) and 1000 ml2828Final varnishOil paint dries through the absorption of oxygen.This is a chemical process. Once the paint isentirely dry this oxidation process does not stopbut continues in an ageing process. Eventuallythis can be visible as crackling. Once the paintis entirely dry (with layers of normal thicknessthis takes approximately one year, with verythin layers several months less, and with thickerlayers several years) it is advisable to apply a finalvarnish. This final varnish slows down the oxygenabsorption and the ageing process. The varnishalso determines the degree of gloss and protectsagainst atmospheric contaminationWhen varnishing, ensure that everything(painting, varnish, brush and trays) are at roomtemperature. If the painting is taken out of a coldroom into a warm room in order to be varnishedcondensation can form on the cold painting.Moisture would therefore be sealed within thevarnish resulting in a white film. What’s more, themoisture on the painting can cause the varnish tobead and result in poor adhesion.Beading can also occur if the paint layer is verysealed, for example when this contains a greatdeal of binder (medium, oil). In order to preventthis it is advisable to first wipe the painting with acloth with some white spirit. Once the white spirithas evaporated the varnish can be applied.VARNISHES