One big caution here. You do not want to borrow or use bead blasting equipment where the history of the media is unknown. Glass bead blasters frequently get used on rusty, dirty or greasy parts (automotive) and the blasted off material becomes part of the blasting media.

Before using blasting equipment for pre-bonding preparation be sure that the equipment is clean and the media is fresh. You also want to be sure there is a moisture trap and filter on the air supply to prevent oil contamination from the compressor.  Experiment to find the best air pressure and bond up some test coupons to validate your procedure.

Regards
Brent Regan

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  surface in lieu of sanding before applying epoxy/glass? >>