ALOCROM is a rapid non-electrolytic dip process which forms a protective iridescent golden coloured chromate coating on aluminium and its alloys. The coating is flexible, and will withstand bending and denting of surfaces. Also, it gives an excellent foundation for paint and other organic finishes. ALOCROM is ideal for coating all types of aluminium and aluminium alloys including high silicon pressure die-castings. It should be used on aluminium wherever maximum corrosion resistance is required, and is suitable for articles which are to be painted or left unpainted.
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Alocrom and Alodine are the two trade names for the same product. One is the US and the other is the European. Does "same product" mean "identical"? The two names make it confusing for me. I guess I do not understand the whole "trade name" system. The process is known as Alodine outside UK. A copy of that is available at www. I understand Alocrom is soon to be banned, what is the new legal alternative?
Hi there, I run a Powder Coating company and a customer of mine has asked me if we can do Alochroming dip. I said I would look into this. I have been told that chromates are being phased out in and wondered if anyone knew anything about Alodine as an alternative? Does anyone know the process? Costs, etc.? Thanks in advance. Hi Dan. Alochrome and Alodine are Henkel tradenames for a whole range of conversion coating products. Although Alochrome is, per my understanding, hexavalent chromium based, and therefore problematical, there are other Alodine products and presumably Alochrome products that do not contain hexavalent chrome.
There are also similar non-hexavalent chromium aluminum surface prep chemicals from Chemetall, Macdermid, and other suppliers. Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. Hello, My questions are: 1. What is the difference between Alodine and Alocrom ?
How can I get information technical data for these two items. Thank you. Ciaron Murphy - Great Britain. July 11, A. Philip Naniov - Christchurch, New Zealand. September A. Regards, Ted Mooney, P. RET finishing.
Metal Finishings Ltd
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Alodine 1200 and Alocrom 1200
Our clients primarily ask us to apply chromate coating to their components as a corrosion inhibitor, a primer, to retain electrical conductivity or to provide a decorative finish. Chromate conversion coatings are commonly applied to everyday items such as hardware and tools, and can usually be recognised by their distinctively iridescent, greenish-yellow colour. Alocrom is a powdered chemical which when dissolved in water. Will form a iridescent golden, protective chromate coating of 0. Alocrom is usually used by dip.
Bonderite M-CR Alocrom 1200 Brush (Formerly Brush Alocrom 1200)
More information about our turnaround times. Additional charges will apply to express services. The Alocrom process is the main chromate conversion coating that we provide. Alocrom is marketed under the name Alodine outside of the UK and drawings calling for Alodine can be coated with Alocrom and vice versa. Alocrom has a distinctive yellow colour, due to the presence of hexavalent chromium. For example, for maximum electrical conductivity, the coating is colourless to very light yellow, whereas for maximum corrosion protection it is a deeper yellow.