An antifouling coating for reactors, vessels, lines or other equipment, which are exposed to gaseous or liquid monomers or polymer powders comprise a coating selected from polysulfone (PS) or polyethersulfone sulphone (PES) and polyetherimide (PEI). The coating may have a thickness of 0.1-3 mm, preferably 0.3-2 mm. Preferably the coating is filled with one or more substance giving antistatic properties.
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