[Fulltiming]

Chester, dry sanding corian fills the environment with an extremely fine white powder that SLOWLY settles over EVERYTHING and I do mean everything. When I had my kitchen counters resurfaced in my stick house kitchen, they used a buffer/sander that had a massive dust collection shield around it hooked to a big shop type vac that pulled the air through a HEPA filter unit before going into the vac. By wet sanding, much of the fine dust becomes almost a mud slurry on the surface thus greatly reducing the airborne dust. Even with a custom dust elimination system, there was still a residual film of white powder that settled over the next few days.

By contrast, I started sanding down the counter with my small rotary sander with the attached dust collection bag and within a couple of minutes I had almost filled the room with dust. That's when I called someone with more specialized equipment.