What grit glass are you guys using? Turns out that the finest they have is 80 grit.
Which brings up another question... is it the grit or the hardness of the blasting medium that I should be most worried about? I can order in white aluminum oxide down to 220 grit.
Scott, Thanks for the offer. If I haven't found something that works before then I'll take you up on that. I have a lower A-arm that has a small section I tested today. It'd be interesting to see a comparison on the same material.
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