Canvas Mold and Mildew Removal

To remove mold and mildew from your canvas tent, or awning, first vacuum or brush soilded areas to remove any excess dirt. Wash the affected area with a solution of 1/2 cup Lysol to a gallon of hot water. Rinse with a solution of 1 cup lemon juice and 1 cup salt to a gallon of hot water. Allow the canvas to air dry in the sun.

You can also try applying a cleaner such as IOSSO Tent & Camping Gear Cleaner. This cleaner is made to remove tough dirt and mildew stains. Afterwards, you may want to treat the canvas with a water-repellent compound such as Canvak.