This specification covers rubber flooring, entrance plates and step treads for use in transit vehicles.
Floor covering shall be made from a compound utilizing synthetic rubber and/or natural rubber that meets ADA guidelines. The reinforcing fillers shall be hard clays that are added to impart hardness values of 85 to 95 shore A. The composition may also contain dispersed fibers to give dimensional stability and improved skid resistance to the flooring. The rubber composition shall be homogeneous throughout the entire thickness. White or yellow strips are molded into treads and entrance plates to meet ADA guidelines. An alternate compound which meets Smoke Optical Density of ASTM E662 is available for limited egress applications. All products shall meet R.C.A. Rubber Company quality standards.
Smooth and Rib Flooring
Smooth flooring for the under seat area is made of a homogeneous rubber compound that is 1/8" (0.125") thick. The smooth surface withstands scuffs and grinding while remaining easy to clean. The rib flooring is for high traffic aisles and entrance areas featuring 3/16" (0.1875") thickness and double - grooved design.
Step Treads and Step Edges
Step treads and step edges are 5/16" (0.3125") or 3/16" (0.1875") thick rubber composition vulcanized to .22 gauge galvanized steel or .24 gauge stainless steel backing. Ribs shall run perpendicular with a rib increment of 5/8" to allow ease of cleaning. The front edge will be a white or
yellow contrasting nose molded as a one piece seamless part of the tread. The contrasting nose color can be 1 1/2" or 3" per customer
requirement. An inserted abrasive strip is available as an option as listed below. The abrasive strip shall be in a recessed area, beveled
front and rear, beginning approximately 3/8" from the leading edge of the step.
Step tread with 3 1/2" white or yellow abrasive strip.
Step tread with 2 1/2" white or yellow abrasive strip.
Step edge with 1 3/4" white or yellow abrasive strip.
Apex treads have rows of truncated cones extending above the surface. Each cone shall have a height of 0.130" with a base dimension of 0.375" tapering to 0.125" at the peak. The contrasting nose (white or yellow) has a width of 1 3/4" (1.75"). The rubber composition is vulcanized to 22 gauge galvanized steel backing plate. Stainless steel backing is available by request.
The Apex design is not available as a step edge or entrance plate.
Entrance plates can be custom cut to fit most transit applications with customer furnished drawing. They are made of our rubber compound and include a 3" white or yellow band on the leading edge. The standee line shall be at least 2" wide and shall extend across the coach aisle in line with the driver’s barrier. This line shall be the same color as the edge of the steps. Entrance plates are manufactured with a seamless 45º miter - sweep out utilizing the double - grooved design. Stainless steel (24 gauge, 6" wide) is vulcanized under the nosing and marker. They are also available with an abrasive strip nose.
||90 ± 5 Shore A
||ASTM D624 (Die C)
||120 pounds per inch
||ASTM D395 (22hrs @25°C)
||ASTM F137, 1" madrel
||No breaks or cracks
|Coefficient of Friction
||ASTM F2199 (70 hrs @82°C)
|Impact Sound Transmission
||ASTM E392 - 73t
||Impact Noise Rating - 18/Impact Insulation Class 33
||Did Not Ignite / Self Extinguishing
|Critical Radiant Flux
||>/- 0.5 Watts/cm2
||0.1% by weight (72hrs @70°F)