Amstep Model 138A, 3 inches wide for sloped pan riser, lip 1-1/8 inch from underside at 83 degree angle. Tread 1/4 inch thick; lip design to provide close fit on pan. The abrasive filler shall consist 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.
3″ wide, for sloped pan and risers
For poured or precast concrete, wood stairs and steel pan cement-filled stairs