Ultra tuff
Check out this linkIt applies very well using a textured roller, and the rubbery texture works great and looks quite good. I stripped the old paint down to the gel coat, and applied directly the non-skid paint (no primer). Make sure the color of your gel-coat is uniform (re-apply gel-coat on areas where fiberglass is visible) before you put the non-skid, or use a primer if you want a uniform result (at least with the white color).I painted the boat (H22) 2 months ago so I can't tell you how long it will stick, but so far so good.Good luck T-Bob