At UK Jet Wash Screens we offer a 5 year guarantee on all our powder coated steel framed buildings. The powder coating process involves a chemical pre-treatment to remove dirt and grease. Powder is then applied to the part using an electrostatic gun. The gun applies a negative charge to the powder which is sprayed towards the grounded product to be coated. The product is then cured at around 200 degrees Celsius for about 10 minutes. The time and temperature can vary according to application. Powder coating creates a hard, weather proof coating that is thicker than traditional spray paint.