It is a black heat-insulating material made of polystyrene with graphite content. It is used in construction for thermal insulation systems of the facade, the intercapedium (between the walls), slabs, etc. Advantages: EPS GF 90 performs good thermal insulation, has homogeneous density throughout the mass, dimensional stability over time and during temperature changes. EPS GF 90 is the cost-efficient product where basic thermal insulation starts.