would this be ok for a paint prep???

crankbait cowboy

Chief Petty Officer
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Mar 25, 2013
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no experience with that stuff , but myself and lots of others have just used a 50/50 wash with vinagar and water and then a rinse with straight h20 and worked well for me for a lot less money
 

bob johnson

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Feb 25, 2009
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I already know the vinegar/water combo would work... but since I already own 5 gallons of the product in question, but I don't own even a quart of vinegar....Id say it would NOT be a lot less money!!!!!!!!! I know the Marykate product is some type of acid... and will clean the aluminum nicely, but I don't know if it has any residue that might prevent good paint adhesion !!!!!!!!!!

bob
 

gm280

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Jun 26, 2011
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If you are going to use that to clean the hull in prep for painting, I most certainly would wash it down with tons of water to make certain there was no residual chemicals remaining. It would be a sad story to wash it with that stuff and paint and in a few months the paint start peeling off because of the chemical residue. JMHO!
 

bob johnson

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Feb 25, 2009
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for sure..... I am thinking the vinegar-water, is to remove oxidation... and that it needs to be washed as well afterwards....and I think this chemical is doing the same thing....but since painting a boat is such a huge undertaking.... I am just trying to be absolutely sure.....

sorry if I came off cranky CRANKBAIT!!...no pun intended

bob
 

classiccat

"Captain" + Starmada Splash Of The Year 2020
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The msds suggests that this would be an excellent cleaner. Hydrochlororic acid, phosphoric acid, ammonium bifluoride (surfactant?) and water. It also looks pretty toxic....wear protection. Couple this with a surface passivation treatment (chromate conversion....like alodine or west systems aluminum prep part b)...and you will have a good 1-2 punch.
 

Watermann

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I've used AL cleaner lots but not that brand with all those acids. I use this stuff ... http://www.jjvsbest.com/index.php/products/aluminum

So the purpose of vinegar is to set up an acid etched base for the self etching primer to help it grab tight to the AL. If the stuff you have is loaded with a bunch of types of acid I would think it would do the same thing and leave a super clean surface without oxidization.

Forgot to add that I had a few scrap pieces of AL laying around that I did test runs on see how well different procedures worked out. If worried you could always test it out first.
 
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