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Old 08-27-2012, 10:10 AM   #717
Dubbious Adventurer
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Joined: Aug 2001
Location: San Francisco
Oddometer: 5,026
Case cleaning

Originally Posted by brocktoon View Post
I owe you a beer next time you're in the north bay. I'll owe you two if you tell me how you got the housing so clean.
Water based degreaser, scrub, rinse, phosphoric acid (mag wheel cleaner) left to soak in for 2 minutes only on wet surface, scrub while rinsing to remove all residue immediately. I use the acid a small area at a time becuase its very hard to keep a consistent result. Some splotchiness is unavoidable on rough castings. Finally after drying for a day, I use a blast of contact solvent to get as much etching residue out of the pores as possible. It's a process, but takes little time.
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