SH on canvas awnings. Success!

Oxalic acid. https://www.amazon.com/OXALIC-Crystals-Cleaning-Removal-Remover/dp/B0147IFKBY/ref=sr_1_6?ie=UTF8&qid=1520715405&sr=8-6&keywords=oxalic+acid

1 Like

Guess I don’t know to properly post a link

1 Like

Well put in my quotes yesterday meeting owner Mon morning to see look over everything with him and hopefully I get the job. Fingers crossed

2 Likes

@squidskc I bookmarked this post when I first found this site because I knew I’d be back to it. I will try to make this short. I have a lot of properties that have canvas awnings with tons of bird droppings, mainly seagull and pigeon droppings. I would like to start cleaning these awnings along with managing their bird issues. What brought me back to this post is the conversation I was having the other day with some friends about what products we use to clean our seats in our boats. One friend mention that they use to use bleach to get the mildew off after it had been sitting for a little while but they stopped because the affect/effect? (Never understood the difference) it was having on the stitching. The bleach (which sounded like was just Clorox 6% sh) was causing the stitch to become brittle and had some breakage occur. I guess my question is have you ever noticed this issue? The awnings I’m looking at could probably use a cleaning several times per year.

Never seen it. If they don’t have algae or moss you can just use winsol or woolite. If they’re being maintained you should only need to use the SH once.

1 Like

I’m just theorizing here, but it would be difficult to rinse bleach through a boat seat cushion. When bleach dries on a fiber it does degrade it. As long as it can be rinsed properly I don’t see any risks. This is from my experience as a laundry doer more then a pressure washing professional.

Bleach dried out on a rag = brittle rag
Bleach rinsed out of a rag = clean rag