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Patina aluminum coating1/21/2024 ![]() ![]() ![]() He found a color chip that closely resembled the natural patina bronze. It is done by applying an appropriate "topical color-inducer/oxidant" or a "topical pigment." I recently created a cast aluminum historical military plaque for a client, and when asked to match the near century old cast bronze plaques already in place, gave him a color palate from which to choose. From nearly 40 years in the custom metal graphics industry, I can share that making one metal alloy item look like another metal alloy item, or exhibit the "natural oxidation" effect of the intended metal (patina), is certainly possible. ![]() I hope I'm understanding the intent of the question. If it is not corroded enough, put the sawdust back for a few more days or until it is the finish you need. Mix this with some sawdust and leave it for a few days on the aluminium surface - it will give a corroded finish. Try a mixture of 5% sodium hydroxide with about 5g/l sodium chloride in it (common salt). Try sodium carbonate / washing soda 10% (or even sodium hydroxide 2-5%) - mix it with some sawdust or sand,c over your object with this mix, after a few days it must be ok. Any very alkaline solution (pH8,5 or more) must etch or corrode aluminum. Thank you for your hard work which the finishing world, and we at, continue to benefit from.Ī. Ken Vlach į honored Ken for his countless carefully researched responses. You guys have a great website here! John SouzaĪ. Is there any way to rapidly speed up the corrosion of aluminum to make the piece look like it has been sitting for 15 years like my frame? I had 15 year aluminum frame I showed him and he loved the look. I told him that the corrosion produces a white salty-like finish. "Rather, the corrosion products are white, random pitted, crusty volcanos, and somewhat like salt stains." I'd suggest a decorative rust-like paint or iron paint if you want rust color. If you have a sliding shower door more than a couple of years old, look at the corner joints - the extrusions are anodized, but cut to length after anodizing which exposes bare aluminum (at least if you have cheap ones like I do). Rather, the corrosion products are white, random pitted, crusty volcanos, and somewhat like salt stains. ![]() Corroded aluminum is not brown with a fine grain, like rust on tool steel. Bare aluminum can corrode quite readily, but the problem is that the corrosion products will not look like what he is envisioning. Please call for information on Custom Finishes.A. This is a partial list of finishes at Palm Springs Plating. We are excited to offer E-Coat Finishes (high-strength and very low-toxic technology) available: in 4 different brown colors. While offering over 300 finishes, we have distinguished ourselves with hard to find patina/old world finishes including Tuscan Brass and Durable Bronze. Customers need to send a sample of what they are looking for and we will develop a finish as close to matching that sample as is possible.Īfter our sample has been approved we connect it to unique code number in order to clearly identify them throughout the processing operations and for the customer to use in the case of future orders. Our R & D department is capable of matching (80%-100% close) most finishes on a variety of base materials. Rubbed to perfection then either oiled, waxed or low gloss clear coated depending the amount of durability desired by the application.ĭesigning and Matching are common requests. They can be dipped black, brown, red, or a combination of any. Patinas start with solid or plated brass, bronze or copper. Furthermore, we perform all our own cleaning, stripping of worn plating or paint, polishing, paint coating, glass bead sandblasting and rack plating in-house! This gives us complete control over all processing aspects of your job and is one of the reasons we are so successful at providing high quality work. We can polish or plate on several base materials such as brass, bronze, steel, copper, stainless steel, zinc die cast and aluminum alloys plus some plateable grade plastic (not raw- must have plating already on it). Custom Metal and Patina Finishes Old World look, Oil Rubbed Bronze, Aged and Antique, Finish Design & Matching ![]()
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