| abstract |
The invention relates to a process for the provision of a foamed layer (20) of a polymer composition on the surface (12) of a substrate (11), the process comprising the steps of (i) providing a heat-foamable curable polymer composition, wherein the composition is in form of particles having a particle size characterized by a D 50 value within the range of from 500 µm to 1500 µm, (ii) mixing the heat-foamable curable polymer composition with a carrier gas stream, (iii) spraying the composition on the surface of the substrate using a nozzle (1, 30), and (iv) heating the composition during its flight from the nozzle (1, 30) to the surface (12) of the substrate (11). |