Abstract:
The present invention relates to a method of manufacturing a fire retardant composite, a composite of a foamed polymer having a coating with fire retardan properties, and also the use of such composites. The method according to the present invention comprises the following steps: i) providing beads of foamed polymer, ii) applying a coating on the beads of step i) and iii) shaping the thus coated beads into said composite, wherein the beads coated according to step ii) are transferred to a container for a pressure treatment with C02.