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Articles by Alexander Soroka
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| | | | | [463] Patinas - Formulas | The surface of metals may be colored, a patina added either chemically or with heat. Patinas are generally achieved by causing the metal present to react with another element. It may be the air forming oxides or another chemical added to bond molecularly with the surface. A few pseudo-patinas are simple coatings on the metal's surface. The following patina formulas are but a sampling of the hundreds in existence. The formulas selected illustrate the wide range of application methods employed as well as a rich variety of colors. The first 30 formulas listed are represented on a supplemental sampling chart to designed for use as a visualtext-book..... (2004)
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