Super-Tuff very highly concentrated industrial cleaner degreaser. Cleans marine canvas, Awnings, Sunbrella, Vinyl upholstery, black streaks, mildew, grease, Truely the BEST degreaser around and still OSHA approved and biodegradable since 1989! Use it on your Tuffest stains.

I used the product for my boat cover that has alot of mildew works great just wish it costs less.

My patio awning was green with mildew and even lichen. The accumulation was so fargone that I didn't expect great results, but that's exactly what I got. My awning looks brand new. I liked that Super Tuff was effective without too much scrubbing and also wasn't harsh on my skin. It didn't have any strong or unpleasant odor either. I highly recommend Super Tuff. It does exactly what it claims, super tough on the dirt and grime, but gentle on the awning and my skin.

weather not good , rain and snow.