Smartseal Rust Remover - Acid-Free Rust Stain Cleaner for Natural Stone, Concrete, Driveways & Patios - Safe & Easy to Use - No Damage to Surfaces - 1 Litre

The picture show an area treated with it in the middle. Very little rust. The rusty areas had been treated with another product which did not work as thoroughly. Its not cheap but urcworks.

I used this on concrete patio slabs that had a lot of rust staining and it took a couple of applications, but it did work.The only reason why I gave it 4 stars is because it is a bit expensive.

Actually works. I had cut some mild steel and the shavings made thousands of rust stains on grey porcelain. Looks perfect now.

I didn't expect much, as I tried others that did nothing, but this really works. Very happy with product.

It is a very small bottle for the price. Had rust marks on the new patio tired various of products and nothing work. This was my hail Mary. It removed the stain to my surprise. It was easy to use. Used a small amount and a brush to rub it in. Make sure you follow the instructions.

7 months ago a clown of a tradesman used an angle grinder on our wrought iron fence in the pouring rain, therefore completely ruining 2 parts of our brand new Indian sandstone patio with rust. After such a length of time, I wasn’t sure the product would work but it did a really good job. It has to be applied when the slabs are bone dry to work effectively. I scrubbed it by hand, leaving it for around 5 minutes and then thoroughly jet washed it off. It takes a lot of repeat rinsing. As you can see by the photo the difference it has made. It’s expensive and I have had to buy more to complete the job.

Tried this on rust stains on a concrete patio. It lightened some of the marks but didn’t fully remove them, even after two applications. Easy to apply and no damage to the surface, but performance was average. Might be better for lighter stains.

I had put some Ferrous Sulphate on our front garden. Some of it had spilt onto our paving resulting in rust stains. This removed them all, but it does require a lot of hosing down after use.