Re: Removing adhesive non skid from deck
I've done this (assuming you're talking about 'treadmaster' style)... I suppose there are some solvents that might help, but you need to worry about damaging the underlying glass.
Scraper, elbow grease (and accompanying blisters) was my method of necessity (certainly not choice!!) Fortunately it was just the cockpit sole area.
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
1984 Fast/Nicholson 345 "FastForward"