Polishing virgin as cast aluminum

[ricochet]

Quick question.  I've read a ton about polishing and have done my share of it on aluminum and stainless steel.  I'm wondering what those professionals that do new as cast cases like from S & S, Delkron, Ultima use for starters when doing those quality castings.  Is it necessary to start by sanding or can you go right to the wheel with a particular compound?  I've got a new Eastwoods 1hp polisher that's awsome at bringing back those old aluminum parts.

ricochet

[Horizonmech]

I polished a virgin or two when I was a young man but the casting in aluminum thing is way kinky.....better not get caught......

[crash1292]

sand it first and get the holes out of it...then use black rouge followed by white

[1JITSU1]

 I have first started with wet dry sandpaper 1st 600 down to 1500 wet then try polishing with the rouge Then finsh with crome polish
1JITSU1 

[wreck74]

This might help.
http://www.caswellplating.com/buffs/buffing.htm

[ricochet]

I might just give that Black stuff and Sisal wheel a try and see what it does.  This case I have is very fine cast almost like blasted finish.  I find the sanding most tedious and have done that on sportster rocker boxes and newly cast cam covers. The most aggressive compound I have now is the brown tripoli.

Thanks guys.

ricochet