: - Apply the LPU and let it cure partially.
: - Sprinkle sugar or salt on the surface and press it in.
: - After the LPU is fully cured, rinse the area with water to dissolve the
: salt/sugar. Voila! instant non-skid surface.

: If you want some thing rougher, use rock salt.

Interesting. So the non-skid property comes from breaking up the surface and leaving little pock marks, so to speak? From what I've read, the LPU dries very quickly. Does it stay soft for awhile like epoxy though? It must to do what you are suggesting.