Ok, so it's not vintage but i reckon it's a classic. My chipped up '06 stumpjumper ht is gonna get a lovely new powdercoat soon and i dunno whether to chemically strip it first, or let the powdercoaters blast the old paint off.
will blasting (unsure of media) wreck my alu frame?

Your thoughts please

(searched like a madman and i'm still baffed.. This seemed the place to ask)