Re: Blast media
I've used some kind of black oxide (slag?) in the past on a neighbours boat trailer. It was dusty for sure, but we are out in the country so no issues. I really didn't like it either for mild rust, and have been using glass bead now for several years. Still very dusty, but I find it gets rid of rust (heavy pitted type) very well. It also leaves a nice surface finish depending on the size. I do mine outside in a "tempo" (temporary) garage, and recycle it.
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