Amstep Model 504A, 4 inch wide flat strip with bevel at back edge. Tread 9/32 inch thick, no-trip bevels at back edge, holes drilled and countersunk. The abrasive filler shall consist of a mixture of aluminum oxide and silicon granules in an epoxy resin and hardener mixture and locked into channels in an extruded aluminum base, alloy 6063-T6. Coefficient of friction 1.02 dry, 0.98 wet per ASTM F 609. Abrasive filler color as selected.
Color as selected.
For renovating any concrete, wood, metal or terrazzo stairs.