The surfaces to be treated must be clean, dry and free from grease and dust. Roughen or abrade the surface in the usual way. In the presence of grease, plasticisers and release agents, and for vulcanised rubber and thermoplastic rubber soles, the substrate must first be washed with Überkoll Solvente Cleaner. Stir and apply Überkoll Primer EVA evenly to the EVA surface. Leave to dry until the solvents have completely evaporated, then bond with Überkoll Poliuretano. To speed up drying of the primer and for better performance, it can be useful to add 4-5% Überkoll Attivatore to the primer. Store at room temperature in a dry, indoor place, in the original packaging.