Rubber playground tiles are made of rubber granules that are bonded together into the top wear layer. The top wear layer is then bonded to a resilient underlayment made of 100% post-consumer recycled SBR and polyurethane. The system is not seamless, but still has the lowered maintenance properties of a unitary surface. It is easier to repair or replace a single tile than a poured surface in the long run. It can be installed over concrete, asphalt, or crushed stone and does not require a factory trained installer.