What is the difference between alodine and Iridite?
Iridite is a trade name for a whole family of chromate conversion coatings. Alodine 1200S is the trade name for aluminum chromate that meets MIL-C-5541. Iridite 14-2 is the particular trade name for a product that is chromate conversion for aluminum.
What does Iridite mean?
Iridite is a N.C.P. (non-chrome chemical process) that produces a protective chromate conversion film coating on aluminium and its alloys. The process is RoHS and WEEE compliant. It is often used as a protective coating for abraded anodized surfaces and to provide an electrical contact.
Does alodine work on steel?
Chromate conversion coating or alodine coating is a type of conversion coating used to passivate steel, aluminium, zinc, cadmium, copper, silver, titanium, magnesium, and tin alloys.
Is alodine a primer?
Aluma-prep is an etch, so is alidine, Alodine is Chromic acid, When the surface has already been etched, it does not need a self etching primer. Yes it will form an artificial Hydroxide coating to protect the aluminum.
What does alodine do to steel?
This chemical reaction transforms the metal surface into a protective layer. While providing aluminum corrosion protection, the chemical film or Alodine coating also leaves a base on the surface finish for organic coatings, and it can protect against the loss of electrical conductivity.
How is alodine removed from aluminum?
Very fresh chem-film (Alodine, Iridite, chromate conversion coating) can be softened with 50% nitric acid, then wiped from aluminum [credit Max Stein & Brian Terry].
How do you use alodine 1200?
Apply the diluted ALODINE 1200S coating chemical solution liberally to the aluminum surface. Treat at one time only as large an area as can be conveniently handled with the equipment being used (approximately 6 to 10 square feet of surface).
Is Alocrom 1200 banned?
The hexavalent chromium based Alocrom 1200 which is a process we have used for many years is now on the B/T/R list (Banned / Targeted / Restricted). Unlike your previous posts, this is a through-life toxicity consideration.