Rubber Mulch is a shredded rubber, which is bound with a specialist polyurethane binder. This is a recycled product, manufactured by shredding rubber that would otherwise go to land fill. As this system is self surporting it does not need a structural sub base, unlike Rubbaflex fg or sg. It can even be laid directly onto grass.
Its most common use is in playground flooring. The finish is a textured layer of shredded rubber