Keeping your boat cover mold- and mildew-free requires cleaning the cover regularly and not storing the cover until it is completely dry. because mold and mildew can eat through the fabric of your boat cover, don't allow large patches to develop; clean the cover the instant you notice a few spots.. Mold and mildew on canvas boat tops and covers look bad and can be potentially unhealthy. depending on the amount of the mold and mildew it can also have a negative impact on value of the boat and if stored next to your house it could have a negative impact on the curb appeal of your property.. My boat cover, which i *think* is made of sunbrella, is in it's third season, now. i have a problem with mildew on the underside of the cover. a couple times a summer, i'll spread it out on the lawn and scrub the backside with a brust and lysol but soon, the mildew is back..
Wiping down canvas afterward with a solution of white vinegar and water in equal parts after each time you take the boat out can help to prevent future mildew growth. protect yourself from mildew by wearing gloves, a face mask to cover your mouth and nose, and protective glasses.. Re: suggestions for mold/mildew remover from boat cover the previous owner left half a bottle of "awesome" cleaner concentrate on the boat, so i gave it a shot on the mildew that gathered in the seams of the canvas.. Clean sunbrella marine canvas; clean sunbrella
