Re: Greasless compounds vs sandpaper
These guys are right on the money.
I'm in the process of polishing a set of Triumph 650 Bonneville crankcases.
I'm using several grades of greaseless with a cheap air die grinder on assorted felt bobs and even with that if can be a slow and somewhat boring process. After the greaseless I am wet sanding 400, 600, 1000, 1200 then polish with white liquid rouge. My casting were pretty good and was able to get out probably 95% or more of the pit marks. The best advise I can offer is "Patience, Patience, Patience and more Patience" Seriously if you if you have patience and don't rush through steps you will be astounded at the results. I have at least 20 hours into my cases and have a bit to go. At first you will wonder if the sore finger tips and everything is all worth it but once you finally start to see the fruit of your labor your find it was.
British Rules!
|