Alumlprep 33 is an acidic metal cleaner and conditioner expressly compounded for aluminium. Prepares aluminium and its alloys for painting or welding. Detailed Product Description: Alumiprep 33® is a non-flammable phosphoric acid-based cleaner, brightener. and pre-paint conditioner for aluminum. Alumiprep. CERTIFICATE OF CONFORMANCE INCLUDED Alumiprep 33® is a non- flammable phosphoric acid-based cleaner, brightener and pre-paint conditioner for.
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Some that are sheet metal specialist. Alumnoprep you rinse off the alumiprep, don’t let the part dry off. How are you guys disposing of your spent alumaprep and alodine? Then they put a 2 part epoxy primer on. These suggestions are purely based on my own years of trial and lots of error.
I was thinking that there was some more technical reason that people were prepping the alclad.
Alumiprep Metal Cleaner & Alodine Chrome Conversion Coating – Chief Aircraft Inc.
No registered users and 1 guest. Who is online Users browsing this forum: But the normally recomended cleaner is Alumiprep It will turn out fine. So why scrape it away and scuff it up just to replace it with an alclad generated coating? If you consider the alclad durable enough, then by all means leave it alone!
I guess metal prep is a real sensitive area. You cannot get the Alumniperp to work on without first treating with the Alumaprep Therin lies the variable of what each builder considers the best, most durable barrier for their airplane and it’s intened useage.
The alodine is really needed where there is no corrosion protection. First to cover the scratches and the other is where 2 pieces of metal are put together mosture can get traped between the pieces.
It is pretty much all I am doing. This is the stuff of primer wars. It would seem to me that theres no need to worry about converting the metal where the almniprep is in good shape.
The alumiprep leaves the aluminum bare, and it will oxidize as soon as the air hits it. Then you have the temper number, ie. I think it comes down to your individual plans for your specific aircraft. Don’t leave the part in the alodine too long. A few suggestions about it’s use: Akumniprep said 2 reasons.
If the part is starting to turn dark, that’s too long. Alclad is a top layer of pure aluminum applied wlumniprep the for corrosion protection.
Using Alumiprep 33 before Alodine –
Alumniprepp bottle states not to use on high copper alloy aluminum. Keep the part wet between alumiprep and alodine. This all depends upon your definition of “durable barrier” between substrate and environment. The reason I asked was to make sure my next statement or question wasnt based on incorrect data.
The question, why scuff up or “prep” alclad before treating it with alodine.
Only time will tell who is right. You will find that it takes longer to get that even colour you are looking for. Any one have experience in using this cleaner, or can they recommend another cleaner and surface prep 33.
Just follow the instructions for application. I ask them about preping and primeing alumnprep the metal has an alkalad surface. I understand the religious debates, but there doesnt seem to be many “just clean it and dump it in alclad for a few minutes” believers out there.
Listing: Alodine & Alumniprep
If you are doing small parts in a “bath”, remember that alumniorep does not last forever. They use prep 33 and alodine all the time.
It will come out with a “chalky” tone too it. You’re eating up metal at that point. Nothing wrong with that as far as I know, but if you get it right, the alumniprdp almost looks like it’s anodized. Don’t leave the part in the alumiprep too long.