Another sandblasting/prep question
Ok, I've searched and read, and I have a question about blasting. Basically, I'll likely be powdercoating mostly engine and automotive parts, which are often fairly dirty. Now, I see a lot of different types of blasting media, and I just want to know what is going to be the best for me. I've heard reccomendations of aluminum oxide, glass beads, silica sand, and even baking soda. Which one is right for my applications? And if one is best for smoothing out a surface (such as cast aluminum, or uncoated mild steel), I'd like to know that too. A compromise between the two would be ideal, if possible.
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