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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How are you guys disposing of your spent alumaprep and alodine? Keep the part wet between alumiprep and alodine. They said 2 reasons. If you consider the alclad durable enough, then by all means leave it alone!
You cannot get the Alodine to work on without first treating with the Alumaprep The alodine is really needed where there is no corrosion protection. It is pretty much all I am doing. But the normally recomended cleaner is Alumiprep Don’t leave the part in the alodine too long.
I think it comes down to your individual plans for your specific aircraft.
Alclad is a top layer alumniprdp pure aluminum applied to the for corrosion protection. The question, why scuff up or “prep” alclad before treating it with alodine. Don’t leave the part in the alumiprep too long.
Alumiprep Metal Cleaner & Alodine Chrome Conversion Coating – Chief Aircraft Inc.
Who is online Users browsing this forum: Some that are sheet metal specialist. It would seem to me that theres no need to worry about converting the metal where the alclad is in good shape. Any one have experience in using this cleaner, or alymniprep they recommend another cleaner and surface prep soluiont. I guess metal prep is a real sensitive area.
Listing: Alodine & Alumniprep
I ask them about preping and primeing when the metal has an alkalad surface. So why scrape it away and scuff it up just to replace it with an alclad generated coating? Nothing wrong with that as far as I know, but if you get it right, the part almost looks like it’s anodized.
This all depends upon alummniprep definition of “durable barrier” between substrate and environment. Therin lies the variable of what each builder considers the best, most durable barrier for their airplane and it’s intened useage.
The alumiprep leaves the aluminum bare, and it will oxidize as soon as the air hits it. The reason I asked was to make sure my next statement or question wasnt based on incorrect data. If the part is starting to turn dark, that’s too long.
It alumniprrp come out with a “chalky” tone too it. Only time will tell who is right. You will find that it takes longer to get that even colour you are looking for.
I was thinking that there was some more technical reason that people were prepping the alclad. No registered users and 1 guest.
Using Alumiprep 33 before Alodine –
This is the stuff of primer wars. You’re eating up metal at that point.
It will turn out fine. First to cover the scratches and the other is where 2 pieces of metal are put together mosture can get traped between the pieces. A few suggestions about it’s use: