According to golgfag1, on 13-04-2009 09:32 the word on the street was...

> b) if so, has it proved to give a better finish, or caused any problems?

It's more to avoid problems, rather than to cause them :)

> c) as an alternative, is brushing to remove the residue as effective?

I use a copper wire brush to clean the casting residue off metal parts,
especially the areas that will be glued -- the bond will be much
stronger if you don't leave it on. I'm not sure it affects painting all
that much, but you could use the "better safe than sorry" line of
reasoning ...

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