before using crown trade undercoat
All surfaces must be suitably dry, and free from anything that will interfere with the adhesion of the materials to be applied.
Prior to painting the moisture should not exceed 18%. Remove grey and denatured surfaces by rubbing down with abrasive paper or by mechanical means and round sharp edges 1-3mm. Organic growth must be removed and the areas treated with aTrade Fungicidal Solution.
Remove any defective putty glazing, clean and prime rebates, replacement putties must be allowed to form a hard skin. Treat knots with two thin coats of fresh knotting. Fill any fixing holes, open joints and shallow surface defects with a Trade Ready Mixed Filler or a two pack proprietary wood filler.
Rub down with a suitable grade of abrasive paper. Remove all dust. Prior to painting the moisture should not exceed 18% wood moisture equivalent.
Prime with one coat of Wood Primer, or for hardwood, Aluminium Wood Primer. Allow to dry.
For more information please refer to Data Sheet