SmartSeal Rust Remover - 1L - Powerful Rust Remover for Metal, Stone, Porcelain, Concrete, Block Paving & Natural Stone. Fast Acting, Acid-Free Formula that Removes Spots & Stains from Rusting

Why did you choose this product over others?: Really good product, removed rust stains left by a calor bottle and iron chair marks on sandstone. Suggest you use gloves as it is very strong. Work on small areas at a time during dry weather. Keep agitating with a tooth brush, wipe off with wet rag. Use only clean water. Repeat as necessary.

This is good. I had to use 2 applications to get rid of the rust marks on my patio tiles but it worked. Just a few small stubborn ones left to have another go at.

Cleaning power was brilliant. Even on my sandstone paving. Removed rust after minutes. Turns the rust purple then you simply rinse off. No stains left behind. Exspensive for the little tub but well worth the money. Really happy with the results

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.

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.

I had somehow managed to spray lawn feed and weed all over my patio and hadn't noticed. Returning from holiday a couple of weeks later I found the patio badly stained. I tried a acid cleaner but it didn't make any difference so I began to think I'd have to have the patio replaced. I did a on line search and found Smartseal Rust Remover so ordered a litre. I tried it as soon as it arrived and thankfully it worked, my slabs look great. Definitely recommend Smartseal Rust Remover.

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.

Very impressed with it I v have tried others but this is the best not quite 100 percent but well pleased with it