gearheadstik Posted December 28, 2007 Share Posted December 28, 2007 Hey guys I have been cleaning my trans cases and such with diluted acid which works great, but afterwards it oxidizes terribly to the point if turning white. I'm not going to anodize or paint, so what can I do to help this... What do the OEMs do about this problem? Coatings, sealers? Where can I find something? Thanks Quote Link to comment Share on other sites More sharing options...
johnc Posted December 28, 2007 Share Posted December 28, 2007 You need to seal it with some kind of clear coat paint. Also, make sure you're cleaning off ALL of the acid wash. Rinse it very well wih water and dry it. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted December 28, 2007 Share Posted December 28, 2007 How about clear coating them? You'd need high temp paint, but should be able to find that I'm thinking... Quote Link to comment Share on other sites More sharing options...
rjracin240 Posted December 28, 2007 Share Posted December 28, 2007 Found that Castrol Super Clean works great on aluninum parts especailly getting the sludge out of valve covers. it is a lot less caustic but still needs to be used with care. However I have never had a problem of it turning the aluninum white. What you are seeing when youget the white powder is a form of oxidation where your aluninum is actually corroding. When we see this for of corrosion on our aircraft skins we remove the pitting if it has gone that far and then clean the area with a product called alumaprep. Once the aluninum has been cleaned it gets rinsed very clean and then prepped with Alodine zinc chromate or epoxy polymide primer then a top coat of paint. I would sugest reevaluating your acid solution for something a little less harsh. Quote Link to comment Share on other sites More sharing options...
Pop N Wood Posted December 29, 2007 Share Posted December 29, 2007 Car wax works pretty well on aluminum. Hides scratches and tooling marks in the aluminum pretty well too. If you have completely etched off the oxide layer with acid, then may be a bit much to ask of the wax. But give it a try on a small piece of alum and let us know how it works. Got me interested so I did a quick google search. Came up with this stuff http://www.theruststore.com/Bull-Frog-Rust-Blocker-P26C0.aspx Quote Link to comment Share on other sites More sharing options...
gearheadstik Posted December 29, 2007 Author Share Posted December 29, 2007 Haha...Bull Frog...Didnt they make sun block? Thanks guys Quote Link to comment Share on other sites More sharing options...
DREW RBZ Posted December 29, 2007 Share Posted December 29, 2007 I use PURE CARNAUBA WAX on my polished aluminum engine parts....works very well. Quote Link to comment Share on other sites More sharing options...
gearheadstik Posted December 29, 2007 Author Share Posted December 29, 2007 The parts I'm talking about are not polished, so I'm looking for more like sealers and such mentioned before.. Quote Link to comment Share on other sites More sharing options...
rjracin240 Posted December 30, 2007 Share Posted December 30, 2007 Try using ACF-50 on your parts between this and the natural oxidization process of the aluninum think you will get the patina you are loking for. Quote Link to comment Share on other sites More sharing options...
TravRMK Posted December 30, 2007 Share Posted December 30, 2007 This stuff is awesome! Use it on my pollished aluminum snowmobile tunnel. http://www.eastwoodco.com/shopping/product/detailmain.jsp?itemID=5158&itemType=PRODUCT&iMainCat=410&iSubCat=411&iProductID=5158 Quote Link to comment Share on other sites More sharing options...
Dragonfly Posted December 30, 2007 Share Posted December 30, 2007 AP-300ROLITE'S Best Aircraft Aluminium Polish on a 6060-T6 panel. ROLITE'S "AP-300" is the ultimate polish / protector developed specifically for bare aluminum surfaces. Roliteâ„¢ has developed this polish to give the best possible finish and protection on bare, Alclad aluminium, exterior aircraft surfaces. Quick and easy to use. Polishes & buffs right to a finish without having to " wipe out the black" in a separate step. Developed specifically for use with "barrel" or "drum"(pg.3 & 12) type polishing machines. Meets the most recent commercial aviation certifications set by Boeing, McDonnell Douglas, A.S.T.M. & Bombardier Aerospace (MPS 120-136) This is the latest version of the stuff that I have been using for years, as you can see it is a protector as well as a polish and it is designed specificaly for bare aluminum. Because this is made for aircraft you may not be able to just go out and buy some (I got some when I used to work at General Dynamics), here is the link to where I got the above from if you would like to try: http://www.aircraftpolish.com/specrolite.html I also feel that like others have said... get away from the acid, is the best advice. Dragonfly Quote Link to comment Share on other sites More sharing options...
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