The trivalent process requires less energy than the hexavalent process and can withstand current interruptions, making it more robust. While the trivalent chromium plating process is more difficult to control, and the necessary chemicals more expensive than that used for hexavalent chromium, the advantages of this method make it cost-competitive with other methods of finishing. Assembled grill in black trivalent chrome over bright nickel Trivalent chromium plating uses chromium sulfate or chromium chloride as its main ingredient, instead of chromium trioxide making trivalent chromium less toxic than hexavalent chromium. Trivalent chromium is another method of decorative chrome plating, and is considered the environmentally friendly alternative to hexavalent chromium, with many of the same characteristics just like hexavalent chrome finishes, trivalent chrome finishes provide scratch and corrosion resistance and are available in a variety of color options. In recent years, automotive OEMs such as Chrysler have made efforts to replace hexavalent chromium finishes with more eco-friendly finishes. Hexavalent chromium itself is a hazardous substance and carcinogen and is heavily regulated by the EPA. This type of plating produces several byproducts which are considered hazardous waste, including lead chromates and barium sulfate. Hexavalent chromium plating has its disadvantages, however. Automotive steering wheel component in a hexavalent chrome finish This type of chromium plating provides corrosion and wear resistance, as well as aesthetic appeal. Hexavalent chromium plating is achieved by submerging substrates into a bath of chromium trioxide (CrO 3) and sulfuric acid (SO 4). Hexavalent chromium plating is the traditional method of chromium plating (most commonly known as chrome plating) and can be used for decorative and functional finishes. Those vents were in pretty rough shape when I dropped them off, and very intricate to polish, but I checked out some VW wheel trims they had done, and they looked very nice.Have you been hearing about hexavalent chrome and trivalent chrome, but still aren’t really sure what the difference is, and what that difference means? Let us provide some clarity. I'm convinced their shop is just a front, and that the work is being done in Mexico.however, the prices were VERY reasonable, and the results were totally acceptable. The vents I had done on our vintage stove were done by some guys in La Mesa operating under the name Lemon Grove Plating. I want to say the rear bumper was $175, and the front quarter bumpers were $75 each on my Cortina. The bumper I mentioned above was done at Escondido Plating. '66 MGB widened 11' with supercharged LT1 Chevy and 6 speed, C4 Corvette suspension 'If you want me to agree with you then we would both be wrong' Perhaps increased regulations are adding to his overhead, but I find it hard to believe that he's having a tougher time than a chrome shop in my neck of the woods.

My understanding is that copper and chromium prices are down from where they were a few years ago (chromium way down) so I can't see that driving the price up. Even if that shop doubled their prices, I'd be nowhere near $650. The last bumper I had rechromed locally was about 18 months ago, and it was under $200. Wow, I would consider that VERY expensive, even by SoCal standards.

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Chromium plating cost