Oxidation Removal

J

Jayce

Recruit
Joined
Jul 15, 2010
Messages
2
Hey guys,
I have a 40 year old aluminium hull that has oxidation. I am trying to remove the oxidation and have tried many things including acid based washes and other high strength washes. However the oxidation is a chalky substance that i have so far, not been able to remove. The hull will be painted once the oxidation is removed. Any ideas on how to remove the oxidation would be greatly appreciated.
Thanks in advance,
Jayce.:D
 
Bob_VT

Bob_VT

Moderator & Unofficial iBoats Historian
Staff member
Joined
May 19, 2001
Messages
26,022
Re: Oxidation Removal

Welcome to iboats.

That oxidation is a salt reaction with the aluminum. I would try to lightly sand it off and also use a green pad to scrub it.

You are going to be painting so you might as well do it right, sand, prime then paint.

That Toon Bright is nothing more then hydrochloric and sulphuric acid.
 
J

Jayce

Recruit
Joined
Jul 15, 2010
Messages
2
Re: Oxidation Removal

Thanks Bob I have been told that an orbital buffer with a wool pad should also remove it? What grit sandpaper would you recommend?
Thanks,
Jayce
 
Bob_VT

Bob_VT

Moderator & Unofficial iBoats Historian
Staff member
Joined
May 19, 2001
Messages
26,022
Re: Oxidation Removal

If you are going to paint 220 or finer will do a great job.
 
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