Exhaust manifolds and phosphoric acid

Joined
Jan 31, 2006
RO Number
20117
Messages
3
Hi,

I read in an earlier post about dipping exhaust manifolds in a phosphoric acid bath, prior to painting, after "decrusting" them with muriatic acid. What is the purpose of the phosphoric acid? I would think the most important thing would be to neutralize the muriatic acid with something after treatment. Where can I purchase phosphoric acid? Also, where is the best place to buy the primer and paint to coat the mannys after I'm done cleaning them? Thanks.
 
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