ALODINE Aluminum Coatings

[widgitmaster]

Has anyone ever used this Alodine stuff on 6061, 7075, or 2024 aluminum parts? It looks like I could irradite my own parts at home! If this is true, then my router project would look really cool!
Eric

http://www.jamestowndistributors.com...process=search

--------------------------------------------------------------------------
USP-73003G
U.S.PAINT GALLON ***NO AIR-UN1805***

Your Price: $45.10 / gl

Quantity


ALODINE 1201 IS A CHROME CONVERSION COATING FOR ALUMINUM. IT IS A NON-FLAMMABLE, CHROMIC ACID BASED, COATING CHEMICAL THAT WILL PRODUCE A CHROME CONVERSION COATING ON ALUMINUM AND ITS ALLOYS. THIS COATING IS GOLD TO TAN IN COLOR AND IT BECOMES A PART OF THE ALUMINUM SURFACE. THE CHROME CONVERSION COATING PROVIDES AN EXCELLENT SUBSTRATE FOR PAINT ADHESION AND CORROSION RESISTANCE.
--------------------------------------------------------------------------

[Caprirs]

A couple of our customers require it for their aerospace parts. It is a simple coating that changes the color of the aluminum to a dull gold although it is obviously not gold plating. It does not provide any scratch resistance or change in hardness like chrome plating or type 3 anodizing. But it also does not change any dimensions so there's no need to plug threaded holes during the process.

[mxtras]

I have seen 6061 done - not as gorgeous as 5053 but I thought it looked attractive. A local machine shop I use for work has a 650 gallon irradite tank and they do lots of stuff for the local shipyards.

I am sure you know, so I am not sure of your question about the color - the irradite I know is gold - looks exactly like gold cadnium on steel (when the solution is fresh).

I think it is worth a shot, Mr. Widgit!

Scott

[widgitmaster]

I wonder if there is a hasardous material fee attached to the shipping charge?
Also how to dispose of it?
Eric

[PEU]

I think you would be far better if you hard annodize it (HA3) you can even choose colors and if the layer is 30microns or more its unscratchable


Pablo

[widgitmaster]

"I think you would be far better if you hard annodize it (HA3) you can even choose colors and if the layer is 30microns or more its unscratchable"

That would cost way too much!
Not in my limited budget!

[mxtras]

I can ask the guys at the shop I use. I have issued them a tremendous amount of work - they will give me the skinny.

I can look into it tomorrow (well - a little later today I should say) and post the results.

Post all of your questions and I will ask them the exact question.

Scott

[widgitmaster]

I found the MSDS for Alodine, its a rather nasty substance!
The major concern I still have is the disposal of the spent product!
All that is stated in the MSDS is to dilute or neutralize it prior to disposal, but how is that done?
The more I look at it, I keep thinking it would be safer, cheaper, and easier to just find a plating shop!

Any comments?
Eric
http://www.aerospace.henkel.com/Imag...lodine1201.pdf

[greybeard]

I used chromic acid/sulphuric acid mixtures when I worked for ICI about forty years ago, to remove all traces of organic material from volumetric glassware before I checked it against the standards. (I worked in the Standards Lab)
I survived having a snapping elastic band flick some into my eyes, by the good fortune of having my boss standing behind me at the time.
He knocked me straight under the tap and flooded my head with water,then gallons of eye-wash.
Chromic acid mixtures are about as nasty as they get, and the one you are considering contains hydrofluoric acid as well.
Please don't go there.
John

..........>>