Cleaning up torsion bars.

What is the best way to prep torsion bars for paint? I was planning on sand blasting them but after some checking that does not seem like a good idea. Is media blasting ok with plastic beads? A wire wheel too aggressive? Or just wipe down with degreaser and paint. Hoping to get suspension in car this week.
No sir ! Do not media blast them ... It certainly can alter their composition and spring rate can be affected . Do not ever pound on them either or use a grinder as this also can damage . Manually and gently strip them for epoxy or por15 or equivalent .. Remember they are left and right specific also .