Ecoxall Oxalic Acid for Wood Bleach - 1 lbs 99.9% Pure Fine Powder - Highly Effective Multipurpose Cleaner - Used as a Wood Stain Remover and Rust Remover - Industrial Grade Strength

Great product. Removed all water rust stains on the house from the sprinkler system. Used 1 cup in a gallon of water. Used a paint roller to apply. Let it sit for 15 minutes, scrubbed just a little bit on spots that still had rust. Then rinsed with clean water and all rust was gone.

Worked as advertised. Good price, good product.

Just had a new Denya counter with an oil finish put in 6 months ago. Had some metal canisters on the counter and a metal cup. Water was spilled on the counter and seeped under the canisters and cup. The metal reacted with the water staining the wood. I tried some home remedies first and nothing worked. I was terrified I'd have to call the installer to come out and sand it out. With nothing to lose, I decided to try the oxalic acid. Only giving 4 stars because it comes with no directions, usage guides, or precaution literature. It's an acid, it should come with some warnings. Anyway, I found some easy how-tos on youtube. It worked crazy good. Just applied a little of the solution, let it sit a minute, then rinsed. The counters look great! I did lightly sand some of the areas to see if that made a difference, it didn't seem to. But all the youtube videos say you should sand if there's a coating on the wood of any sort. As a side note, I poured the leftover into an old bathtub that had rust marks and it took those off too.

This did a great job lightening up the wood for refinishing furniture. The color came out even so I was able to stain rather than paint.

Having a bunch of fun using this to remove rust from old tools. The quality seems normal. By which I mean I don’t have an analysis protocol to say for sure how perfectly it is what it says, but it looks & behaves differently from malic & citric acid. The crystals seem to be uniformly sized, a bit smaller than kosher salt flakes. When I forget to wear gloves, the back side of my fingernails stains brown and I have indifferent luck scraping it clean. (the nail extending from the end, not the nail bed. I suspect it’s reacting to something on the nail even tho I use a nail brush at least daily.) If you want to de-rust iron, this is one workable option.

Used on a stained acrylic tub. It worked very well. No terrible odor.it

good sale. price was right. delivery fast. no problems.

Good price & prompt delivery.