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Coloring Finishing And Painting Wood
This means that an ordinary natural or white filler coating is given between steps Nos. 6 and 7 in the procedure.
Instruction Sheet for a Bleached and Stained-Walnut Finish.—Porous woods, such as walnut and mahogany, which need a paste filler, are often bleached, then stained with a rather weak, light-toned water stain, to which about one fourth of the volume in denatured alcohol is added. For some effects a bleaching lacquer is applied over the stain and under the filler. For other finishes the filler is placed on the stained wood and bleaching lacquer is omitted.
Materials Needed for Bleached Walnut-Stained Finishes:
Bleaching materials: Use .Simpson's Two-Solution Bleach, a sponge, sandpaper No. 2/0 and 4/0 preferably of the wet-or-dry type, bleaching lacquer sometimes wanted, water-white denatured alcohol shellac or sanding sealer, natural or light paste filler, white semigloss lacquer, rubbing-oil and fine pumice-stone, and furniture-polishing wax. For a gray-onyx-walnut finish obtain a gray-onyx-walnut stain powder. For a sun-tan finish, secure a sun-tan, water-soluble stain powder. Other lighttoned water stains may be used for different tone effects. Brushes for applying the bleach solutions and stain are also needed. The brushes used with the bleaches should be rubber bound, and rubber gloves should be worn. The bleaching agents should not be placed in metal containers and are best stored in a cool, dark place.
Procedure for a Sun-Tan Bleached-Walnut Finish:
1. Smooth with sharp tools, then sandpaper with No. 2/0, and finish always lengthwise of the grain with No. 4/0 sandpaper.
2. Apply a heavy coat of No. 1 bleaching solution. After the bleach has dried thoroly, sand the surfaces smooth with No. 4/0 sandpaper.
3. Coat the surfaces freely with No. 2 bleaching solution, using a different rubber-bound brush and wearing rubber gloves.
4. After the bleaching solutions have dried, wash off the bleaches and, when dry again, sand the surfaces with a No. 4/0 sandpaper to remove the fuzz.
5. Apply very evenly a coat of sun-tan walnut stain, rubbing it out just before it dries.
(For a gray-onyx-walnut finish substitute a gray-onyx stain for the sun-tan stain.)
6. Spray over the dried stain a coat of bleaching lacquer. This step is often omitted, but it is a valuable protection if light sanding is needed over the stain. Bleaching lacquer will slightly bleach the stain if used.
7. Fill with a light or slightly tinted paste wood filler.
