The water dissolves the salt slightly, allowing the slurry to adhere to the aluminum. To make a saline slurry, combine equal parts salt and water.With an abundance of ions splashed across the metal surface, oxidation speeds up.įollowing steps are utilized to oxidize an aluminum surface: Scratching and incising the softened, oxidized layer create undulation in the patina, but until you apply pigment over the incisions, the surface color will not change. However, the aluminum surface does deteriorate, and oxidation weakens the metal. As a result, numerous industries employ aluminum instead of steel or plastic for robust, lightweight, corrosion-resistant parts. How to Oxidize Aluminum?Īluminum has a high strength-to-weight ratio and a patina that matches the metal’s hue. If you want to provide even additional protection, apply a wax coating. Two or three light coats are preferable to a single heavy coat since they enable the piece to dry in between. Seal the object with a clear sealant, metal foil, or wax once the desired patina has been attained. To achieve different effects, layer two different finishes one on top of the other. ![]() ![]() A colorful pattern forms as the chemicals react with the metal surface. Immerse the object in the stain or dye, or spray, brush, sponge, roll, or rub it on, as directed for the specific finish.Īllow the finish to sit for a few minutes to a day, depending on the formulation. Apply the stain or finish to the surfaceĭepending on the finish, the metal surface may need to be hot or cold (room temperature). Before continuing, make sure the item is totally dried. Alternatively, softly etch the surface with a wire wheel or vinegar. To better allow dyes or coatings to attach, the surface can be cleaned and abraded with an electric sander or sandblaster for some operations. Make sure not to contact the piece with your hands, as this will cause undesirable oils to be left behind. Using a metal cleaner and degreaser, the metal must be clean and free of any grease, grime, rust, or scale. Given below are essential steps for this process: Make sure the area is clean If at all feasible, work outside or in a well-ventilated area. Wear adequate personal protection equipment, such as gloves, goggles, or safety glasses, and, if necessary, a respirator. To make a patina, follow these simple techniques. This worn appearance is particularly appealing in artwork and ornamental items. It is considered to be both more energy and material efficient than other colouring techniques.Patina is a thin colored layer that forms on the surface of metals such as iron, steel, bronze, aluminum, brass, and copper over time. ![]() PPC aluminium products are an excellent choice if you’re looking to make your project as environmentally friendly as possible. It also achieves outstanding colour retention in outdoor exposure where heightened weather resistance is required. Polyester Powder coating is designed to eradicate any imperfections such as drips, which are common with painted finishes. Strong corrosion resistant properties make it both extremely durable and long lasting.īy choosing PPC aluminium you ensure a superior finish. Powder coating is a three-step process that includes preparation, appliance and treatment.ĭue to being designed specifically for external use, polyester powder coating leaves really hard finish that is much tougher than normal paint. By using this electrostatic powder process, we ensure that fabrications of any size and shape can achieve an even finish.Īluminium is a metal that is commonly powder coated to give it a durable finish and decorative appearance. It is applied to architectural fabrications electrostatically and then left under heat to allow it to form a protective ‘skin’. Polyester powder coating is a type of dry coating which makes an alternative to conventional liquid paint. ‘PPC’ stands for polyester powder coated, which is a colouring process used within architectural fabrications to achieve bold and bright finishes, including a full range of metallic colours.
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