9 Surface preparation Each wood surface that will receive treatment, should be sound, dry, free from loose sections, peeled paints or varnishes and clean from dust, oils, salts. Equally important is the treatment of their infestation by woodboring insects and mold that make their surface problematic (if any). For the easier cleaning of wood from difficult stains and the excellent preparation of the wood surface before receiving protection with preservative, varnish, or teak oil, DUROSTICK has the powerful cleaning liquid with active ingredients WOOD CLEANER. With excellent penetrating ability, even in the pores of very hard woods, it thoroughly cleans anything foreign to the surface. New wood (coat with varnish) New wood requires only light sanding with finegrain sandpaper (#180 or #220), to create ideal bonding conditions for the products that will follow. This is followed by cleaning with a soft brush and cotton cloth or with a vacuum cleaner, paying special attention to any inaccessible section, crease, joint, molding etc. Small cracks and other small imperfections should be covered with the acrylic water-based putty DUROWOOD, available in 15 colors (p. 41), corresponding to the natural colors of wood.
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