Type 8501 Ribbed Abrasive Stair Nosing - Sloped Riser Steel Pan Stairs

Stair nosings shall be Type No.8501 as manufactured by American Safety Tread Company, Pelham, Alabama 35124. Telephone 1-800-245-4881. The base shall consist of heat treated extruded aluminum alloy 6063-T6. The abrasive filler shall consist of a mixture of aluminum oxide and silicon carbide granules in an epoxy matrix locked into the extruded channels of the base. The abrasive ribs shall project a minimum of 1/16” above the extruded channels. Nosings shall terminate not more than 3″ from ends of steps for poured concrete stairs; for concrete filled steel pan stairs, nosings shall be full length of steps less 1/8″ clearance.

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