All gate posts and U Channels are powder coated to BS-13438 and are salt spray tested to 1,000 hours to BS 3900F4, impact resistance to BS 3900E3, scratch resistance to BS 3900E2, and humidity minimum 1,000 hours to BS3900F2. DuraPost Gate Posts are manufactured to EN 10255:2004 and galvanised to BS EN ISO 1461:2009 with 60 µm of galvanisation.