| 摘要 |
Stains and methods of forming stains comprising saturated hydrochloric acid solutions of blended metallic salts that are chemically reactive with masonry concrete, stone, and like materials. The concentrated stains produce a full spectrum of colors derived from earth elements in the metals and transition element group, and from ores, and refined chemicals. Groups of concentrated mixtures emphasize the colors black, yellow, cyan and magenta to produce an overall earth-tone color. By separately dissolving each heavy metal constituent in an acid solution to the point of total saturation or crystallization, and then adding these mixtures to a predetermined base acid mixture, a stable, concentrated stain results. The individual ingredients are blended to produce a chosen color spectrum by adjusting mixture proportions. The end-user controls the darkness of the desired color by extending the concentrated solution with water from four parts per unit volume to as many parts as required, until the desired color is achieved. The end-color is lightened as desired by the user by diluting the mixture with water, varying the purchased mixture from 1:1 to 1:60. Colors produced are natural earth tones with a decorative appearance. The end result yields a finish that is easily maintained and will not chip, peel, or fade. The concentrated solution allows for optimum cost savings during shipping and storage.
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