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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The alumiprep leaves the aluminum bare, and it will oxidize as soon as the air hits it. Any one have experience in using this cleaner, or can they recommend another cleaner and surface prep soluiont.
A few suggestions about it’s use: Some that are sheet metal specialist. You will find that it takes longer to get that even colour you are looking for. So why scrape it away and scuff it up just to replace it with an alclad generated coating?
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. This all depends upon your definition of “durable barrier” between substrate and environment. They said 2 reasons.
Using Alumiprep 33 before Alodine –
No registered users and 1 guest. Don’t leave the part in the alodine too long. If the part is starting to turn dark, that’s too long.
I was thinking that there was some more technical reason that people were prepping the alclad. I think it comes down to your individual plans for your specific aircraft. The question, why scuff up or “prep” alclad before treating it alummiprep alodine. You’re eating up metal at that point.
First to cover the scratches and the other is where 2 pieces of metal alumnipre put together mosture can get traped between the pieces. Just follow the instructions for application. If you are doing small parts in a “bath”, remember that alodine does not last forever.
Don’t leave the part in the alumiprep too long.
Listing: Alodine & Alumniprep
I ask them about preping and primeing when the metal has an alkalad surface. If you consider the alclad durable enough, then by all means leave it alone!
Therin lies the variable of what each builder considers the best, most durable barrier for their airplane alumnjprep it’s intened useage. Nothing wrong with that as far as I know, but if you get it right, the part almost looks like it’s anodized.
Who alumnniprep online Users browsing this forum: It is pretty much all I am doing. The alodine is really needed where there is no corrosion protection. Then they put a 2 part epoxy primer on.
Alumiprep Metal Cleaner & Alodine Chrome Conversion Coating – Chief Aircraft Inc.
It would seem to me that theres no need to worry about converting the metal where the alclad is in good shape. After you rinse off the alumiprep, don’t let the part dry off. They use prep 33 and alodine all the time. It will come out with a “chalky” tone too it. It will turn out fine. Keep the part wet between alumiprep and alodine.
Then you have the temper number, ie. But the normally recomended cleaner is Alumiprep How are you guys disposing of your spent alumaprep and alodine? This is the stuff of primer wars. Only time will tell who is right. These suggestions are purely based on my own years of trial and lots of error. The reason I asked alunmiprep to make sure my next statement or question wasnt based on incorrect data.