3M™ Safety-Walk™ Slip-Resistant Conformable Tapes and Treads 500 Series are ideal for use on diamond grade safety plates, steps and other irregular surfaces.3M Safety-Walk Slip-Resistant Conformable Tapes and Treads 500 Series contour to surfaces in light to heavy shoe-traffic areas. These tapes and treads are made of a high-friction, mineral-coated, slip-resistant material with a special, pressure-sensitive, adhesive-backed aluminum film that is designed to conform around corners and adhere to irregular surfaces.