One trick for non-skid is to use Soft Scrub with bleach for the stubborn areas and non-skid with a stiff brush. Then I use a non-skid wax which keeps the non-skid from oxidating and keeps it shining. I have never had a customer complain about the wax I use for non-skid and you won't slip.
Yup we have this stuff for non skid. its liquid that you just work in with a brush and we have gotton excelent results. and its looks like it was just done the whole year long. Ill have to look at what its called next time (im not in charge of ordering it:nixweiss)
so i got soft scrub to use for the non-skid, but i think i'm going to need something a bit stronger and use with a brush, but i would like to know this stuff your talking about that you can't remeber the name of, sounds like it's a better bet