The construction of sports surface made of EPDM and/or SBR rubber granules above all depends on the type of usage and the tasks it has to perform. There are different requirements to be met for Olympic athletic running tracks, and different for multipurpose playing fields at schools. Yet, other are the features of surfaces for children's playgrounds.

Generally, the sports surface consists of two layers. The lower base ground layer is responsible for the resilience and hardness of the whole base and thus for its crucial utility parameters. The material very frequently used here is SBR recycled granulate, but it could be a compound of SBR and EPDM, as well. The crumbs of the rubber granulate are connected to each other with a special binding material based on Polyurethane, the so called PU-binder. The type of adhesive used is dependant on a number of factors, such as temperature and relative humidity of the air, or the type of the granulate.  

The second layer is a relatively thin colourful covering made from original material based on EPDM. Its task is the aesthetical finishing up of the surface and ensuring it stability in all weather conditions. There are a number of techniques of applying the outer layer. Two of the most popular ones is the pouring out of the compound  granulate mass earlier mixed with the adhesive, or the spraying of small grains of the granulate with the use of a special "spray gun".

The surface thus obtained  is anti-slip, and protects the joints of the users ensuring them comfort and safety. Additionally, thanks to such properties as resistance to the destructive effect of Ultraviolet radiation and the water permeability, the running track or court can be used practically all the year round.

Surfaces made of rubber granules can also be fit for usage inside buildings, e.g. in sports halls and gyms. They are durable and resistant to very intensive use, for example, with shoes with "spikes". An additional advantage of the EPDM granule surfaces is the effect of the sound absorption, as well as the fact that it is suitable for the movement of wheelchairs on it. This allows for its use in a large number of public buildings. The possibilities of creating designs of any one's choice in all colours, additionally increases the attractiveness of this technology.

The amount of granules needed for the  base ground layer and the upper top layer depends upon the size of the granules and the chosen technique of application. In case you want detailed information on the topic, please kindly contact our office by telephone or through the contact form.