I'm looking for anyone that's had experience Walnut blasting or Soda Blasting a fibreglass hull to remove paint.
We've just acquired a 33' full-keel sailboat with a heavy build up of bottom paint, and a cracking/peeling topside paint. Ideally, I'd remove it all, get a new two-part PU sprayed for the topsides, then re-apply fresh bottom paint. If we DIY, I'd also be tempted to remove deck fittings and re-paint the house/deck too. A sort of once every 15-years sorta refinishing project.
I just did a 24' keelboat bottom and topside job last year... down to gelcoat, 5 coats of inter-protect 2000e, 3 of primer, then a pro topside 2-part PU job, plus 3 coats of bottom-paint. All prep was done with random orbitals, and while it worked, was pretty easy to control, and obtained a fantastic finish, I will never do it again. Way too much effort!
Media-blasting seems far easier, and especially for this 33' which is more of a cruising boat... I can accept a lesser finish....
Any help, comments, photos, stories or shared experiences with media-blasting a fibreglass hull would be very appreciated!!