WoodFinishing Enterprises



45046904191001729 North 68th Street Wauwatosa, WI 53213Phone: 414-774-1724Email: woodfin49@40000200001729 North 68th Street Wauwatosa, WI 53213Phone: 414-774-1724Email: woodfin49@TECHNICAL BULLITENPOTASSIUM DICHROMATEPotassium dichromate is a reddish orange crystalline material. A good stock solution can be made by dissolving four ounces in one quart of water. Small amounts of this stock solution when diluted with water will produce lighter tones.Potassium dichromate stains wood by reacting with the wood itself. Mahogany is one of the woods affected most strongly by potassium dichromate. When sponged with a solution the wood becomes a dark, rusty red and the contrast between the light and dark markings becomes more accentuated. The color produced depends in part on the type of mahogany used. On Cuban or Spanish mahogany, the effect is more pronounced than on Honduras or Philippine Mahogany.With potassium dichromate oak can be stained a dark rusty brown. Maple and birch are stained a soft yellow. Other colors can be achieved by applying a prestain before applying the potassium dichromate solution. Two prestains that can be tried are tannic acid and logwood extract.Other effects can be achieved by adding potassium dichromate to a water-soluble aniline dye and applying the resultant solution.Generally, speaking, there isn’t a stain or dye that can be guaranteed to produce a certain color unless all the facts are known regarding the wood used. Even then the results are not certain. You should experiment with the stain or dye on scrap pieces until you achieve the color you are looking for. ................
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