epoxy for metal floor

Submitted to Product Chat

My friends have a deck that was partially built over they basement level which was given a metal roof. That section of the deck is rotting a much faster rate then the rest of it so they would like to just use the metal roof as a floor. It's perfectly supported for this and would work fine but they would like to paint it to make it less slippery. Does Rusteoleum make a product (hopefully that I can purchase at Home Depot) that would work for this application? Similar to the garagefloor products with the flecks for traction? Or perhaps there is a primer I can use on the metal to prep it for use with a product technically meant for another substrate? Thanks in advance!