I would bite the bullet and send them out for ceramic coating (or whatever hi temp coating is the rage these days). I've done most of mine, the under hood temps are noticeably lower.
bs Sent from my iPad On May 3, 2011, at 8:30 AM, Stefano Iachella <[email protected]> wrote: > Cats: > > The list has been pretty quiet, so I'll ask for some opinions. > > I have some spare manifolds to install and will be giving them a > high temp coating (POR15 Exhaust Gray). I need to prep them > first. > > First question is about sand blasting. If I take them somewhere, > will they blast the inside as well, or do I have to specify that? > How about the mating surfaces? Do they loose there flatness > and get screwed up? Do they need to be covered? > > I am also contemplating some sort of chemical soak. This should > be able to get inside and outside. The other advantage is I can > be ready to put on the final product as soon as I get it out of > the soak to minimize re-rusting. If I take it to a sand blaster, I > should be getting the final product ready to apply as soon as I > get the pieces home. I may not have the time to do it right away. > > Any recommendations on chemicals and where to get them. It > would be nice to get a product easily found at a hardware store > or home box store. I'd rather not have to order some product and have > to wait for shipping, and only available in big industrial cans. > (unless someone has already bought a big industrial can and > would sell me a smaller portion). > > Thanks, > Stefano > Concord, CA > -- > to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi > or email "unsubscribe alfa" to [email protected] -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
