Polygon Moisture control in surface coating applications For a number of years Polygon has been providing a variety of humidity related solutions. We offer a nationwide solution combining detailed on-site surveys with unparalleled technical expertise to recommend individually tailored solutions for any humidity problem. Specific corrosion prevention applications where Polygon dehumidifiers are in constant use include: Ship protection during maintenance Maintaining a corrosion-free environment during abrasive cleaning and subsequent coating within oil refineries, power stations and industrial environments Producing machinery and control equipment for water tanks and sewage treatment works. Corrosion Protecting structural steel construction during the application of fire-proof coatings.