To remove mildew from canvas awnings, dry the canvas, scrub away loose materials, apply alcohol solution to remove any remaining mildew, clean the canvas with a mixture of water and detergent, and rinse the awning. You need a bucket, a vacuum cleaner, a rag, a brush, water, rubbing alcohol and laundry detergent.Continue Reading
Dry the canvas to eliminate moisture, and then scrub it with a stiff brush to remove mildew and dirt. Use a hand vacuum cleaner to remove any microscopic loose materials from the surface.
Combine water and alcohol in a bucket at a concentration of one to one, stir thoroughly to form a solution, moisten a rag with the solution, and use the moistened rag to rub away mildew remnants. Repeat the process as needed, and then rinse the surface with clean water.
Fill a bucket with water, add laundry detergent, and stir the mixture to form a uniform solution. Dampen a rag with the solution, and use the wet rag to rub the canvas surface. If necessary, repeat the process until the canvas is sufficiently clean. Rinse the canvas with clean water, and then air dry the material.