patrickhill it can be tinted to almost any color,and is just a SHERWINWILLIAMS HOUSE BRAND TWOPART EPOXY.The PPG sounds like the same paint.

awlgrip over fresh gelcoat.....................

I've used a Rustoleum 2 part epoxy, on everything from garage floors to shower stalls. Yea shower stalls...after 4 years of use it still looks great ( it is in an apartment building). Graingers sells it , but don't get the water based stuff.
My .02