Sunbrella features a soil and stain resistant finish that makes cleaning a breeze. Spot wash by sponging briskly with a soapy solution of mild soap in lukewarm water. Rinse thoroughly with clean water to remove soap and air dry. You can also clean the canopy cover in your washing machine, however do not use your dryer. After the wash cycle, simply put the damp cover back on the frame on the umbrella and let air dry.
Solution-dyed acrylic does not promote mildew growth. However, mildew may grow on dirt and other foreign substances that are not removed from the fabric. Simply wash your cover to remove mildew.