Bottom blasted

[Sardinia306Canyon]

I think its recycled crushed glass...and maybe some water mist to knock dust down?
https://lodatoblasting.com/services/boat-bottom-paint-removal/

Soda blasting is a mild form of abrasive blasting in which sodium bicarbonate particles are blasted against a surface using compressed air, with or without water to reduce dust.
Glass pearls can be blasted but are too abrasive for gelcoat.
Chris

 

[SkunkBoat]

Looking good. Glad I don't have to mess with that.
Had a thought. Are you all closing off the intake vents on your engines? I sometimes wish marine engines had some type of filter for the occasional times nasty dust can make it's way in. For me when I'm trailering, I wonder what road grit is going where I don't want it to be.

The engines were outside of their bubble. Also, all inlet and outlet ports were taped over.