ANEWNICE 99.6% Pure OXALIC Acid Powder C2H2O4 (Ethanedioic Acid Dihydrate) Rust Remover, Bleaching Agent, Wood Stain Remover & More! (40 Pound Pail)

We live in northern Florida where the water table is high, but full of iron. We use underground wells for watering our yards, but with the high iron content, it’s inevitable that after time we get nasty rust stains on the concrete driveways, sidewalks and even the brick on our house. This Oxilic Acid is the most cost effective, and easiest way to remove those stains. Simply mix with water and apply. No need to even rinse. For harder stains in the brick (after 12 years) we had to apply a few more times and it has made a big difference. We ended up purchasing a 40 lb pail to totally clean up our property and clean up the fence. The vendor was quick to ship and item arrived undamaged.

Bought it to clean rust from hard water off of concrete. Works great for that. I had used a pre-mix solution before and this is much more economical than what I had been using. Of course it has many other uses

I'd like to do business directly with this company instead of having a middle man. There product is effective and efficient for the purpose my company uses it for. Excellent product that can be easily used.

Finally! An economic solution to rust stains on the house and driveway! This product works great! Rust stains disappear as if by magic! If you use this on a painted surface (side of the house) be sure to immediately flush it off with lots of water. Thanks for a great product!

This 5-gallon bucket is the most economical choice for buying oxalic acid, which is the best solution for sprinkler system iron "rust" stains on sidewalks and walls. The crystallized acid is a little clumpy, but dissolves quickly in water.

WE ARE USING THIS FOR BOTTOM WASHING BOATS. WORKS AS EFFECTIVE AS ANY NAME BRAND AND IS PERFECT FOR WHAT WE NEED. COMPARES TO OLD CRYSTAL LAKES

I like the product - used to clean wood deck - and having in 5 gallon pail is better because you can "scoop" whatever amount you need and mix large or small amounts - very handy and very versatile.

Great for brightening wood! I used it to brighten cedar siding after stripping the stain.

Great quality. Brightens wood very well.