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.

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.

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

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.

Had removed old garden furniture which left rust marks, didn’t know if this would work but thought I would give it a go, it is easy to use with a brush and goes a long way also. Turns purple on contact with the rust and the rinse off. Stain is removed, great product

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.

Removed a large stubborn rust stain from block paving caused by a skip with ease. Followed the instructions on bottle and removed first time. Be warned it smells horrible. But it did exactly what I needed.