Ideal for use on diamond grade safety plates, steps and other irregular surfaces. Mineral coated, slip resistant with aluminum foil backing. Conforms to irregular surfaces and around edges.High-friction, slip-resistant material has a special aluminum backing that conforms around corners and adheres to irregular surfaces. Applications: diamond grade safety plates, steps and ladder rungs. Heavy equipment and vehicles. Available in custom sizes and with custom adhesives. 3M Safety-Walk Slip Resistant Tapes and Treads Series 500 has been certified by the National Floor Safety Institute (NFSI) as providing “high-traction.” A wet static coefficient of friction (SCOF) of greater than 0.60 was chosen by NFSI as the criteria for “high traction” because according to NFSI, floor surfaces maintaining this level of slip resistance when wet have proven to reduce slip-and-fall claims by between 50% and 90%.