ALEXSEAL® Premium Polymer Sealer is a non-abrasive synthetic sealer designed for cleaning and protecting surfaces painted with polyurethane. It is formulated with UV absorbers that will help protect the paint from exposure to the sun and improve the coatings' life expectancy. ALEXSEAL® Premium Polymer Sealer will remove mild stains and water spots from the surface and leave behind a protective polymer coating which will help seal the surface from the harsh elements of the marine environment. It is recommended to apply ALEXSEAL® Premium Polymer Sealer every 3 to 4 months to areas that have extreme exposure to sunlight.