Cushion tennis court surface

Abstract

A padded surface for tennis courts (adhered over surface foundation such as asphalt or concrete) that includes a soft padding layer including granulated SBR rubber added to a polyurethane elastomer, and a top wear layer with a sand dispersion. The polyurethane elastomer is formed by mixing a first component of polypropylene glycol, castor oil, silica, iron oxide pigment, a molecular sieve, a UV stabilizer, and a catalyst, with a second component formed of polypropylene glycol and methylene diphenyl diisocyanate. The top wear layer comprises any one from among a group consisting of a water-based urethane, acrylic, or urethane-acrylic hybrid intermixed with sand in a dispersion. The resulting tennis surface provides an optimum balance of physical properties needed for the performance of the surface, despite a wide range of temperatures, and the thickness can be varied as desired to comply with ITF shock absorption rates of 13-20% and to suit customer preferences.

1 . A padded surface for tennis courts, comprising:
 a surface foundation;   a soft poured-in-place polyurethane elastomer padding layer applied over said surface foundation, said padding layer including granulated SBR rubber added to a polyurethane elastomer, said elastomer being formed by mixing a first component of polypropylene glycol, castor oil, silica, iron oxide pigment, a molecular sieve, a UV stabilizer, and a catalyst, with a second component formed of polypropylene glycol and methylene diphenyl diisocyanate; and   a top wear layer applied over said padding layer, said top wear layer comprising any one from among a group consisting of a water-based urethane, acrylic, or urethane-acrylic hybrid intermixed with sand in a dispersion.