View single post by Jensenman
 Posted: 02-13-2009 09:06 pm
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Jensenman

 

Joined: 04-14-2005
Location: Columbia, South Carolina USA
Posts: 156
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A little heat goes a long way on the really stubborn stuff. Borrow a torch and heat the surface stuff, keep the flame moving and scrape with a putty knife or use a wire brush. The stuff will fall right off.  It's not necessary to get the metal red. In fact you can do it with a propane torch, it's just slower.

Of course, do this outside! Take all normal fire precautions.