Filling pits in aluminum casting?

[johnshenry]

I have had some handles cast, and grind/sand/polish them out. Most however have some air bubble pinholes/pits that are too deep to grind down. I tried Solder-it, but later realized that the casts were aluminum and the solder would not adhere to that. Is there and equivelant aluminum solder type product that would work? I vaguely remember such a low melting point aluminum repair metal (sticks?) I found on the web, but can\'t find it now. Any ideas?

Thanks,

John Henry

[mcaswell]

Re: Filling pits in aluminum casting?

The aluminum repair paste can be found here:

http://www.caswellplating.com/more_solderit_repair_pastes.htm

[8mpg]

will the filler polish out like aluminium? I have some pitting that is giving me trouble on my intake manifold that Im trying topolish. Will it polish?

[mcaswell]

Yep.

[CamaroMike]

I hate the "gas" in alluminum especially when I was a polisher at S & P. Lots of parts had it and made for a bad looking product

[GrendelPrime]

Sounds like the Solder-It Paste may be just what I need to fill in some holes I need to get rid of.
Any problem anodizing over it after it's worked down even with the rest of the surface?