Amstep Model 331A, 3 inches wide, 90 degree return angle. Tread 1/4 inch thick with lip 13/16 inch from underside, no-trip bevels at back edge, 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. Color as selected.
Color as selected.
For renovating any concrete, wood, metal or terrazzo stairs.