Lithofin Rust-EX Rust Remover 500 ml

I had several rust marks on my grey Indian limestone slabs and bought this with no great expectations after seeing mixed reviews. I thought it worth the risk to avoid replacing 5 stones. It worked like magic! I followed the instructions to the letter using a soft 1/2” paint brush to spread the liquid and washing it off promptly before it dried. In my case, after about 5 minutes on each area. It took between 4 and 5 applications although you could see it working well after just the first application. Just wash off, wait for it to dry, the reapply. The liquid does turn a blackberry purple as it reacts with the rust, but it washed off with a water soaked rag. Brilliant results with only two little spots of about 1mm that refused to go. My one disappointment is the cost and size of the bottle. It took very little liquid to complete the job and I estimate bottles of 100ml would take care of most issues. Ok, I can keep this in case it happens again, but Lithofin state this has a limited shelf life and we will be much more diligent in future with metal items as we now we know that it causes rust stains! So, come on Lithofin, smaller, less expensive bottles! PS. I wonder if the failures were on concrete slabs. I tried this on a concrete slab we have with a rust mark and it wasn’t as effective. Also you have to be quicker washing it off as the purple staining took some effort to remove on concrete whereas it took little effort on stone. I’ll try again on the concrete slab.

It actually works. I was a bit reluctant, but dince I couldn’t find anything else, decided to give it a try. Very good result, product removed rusty stains of the sandstone left by scrap of metal. Worth every penny in my opinion.

I purchased this to remove some small rust stains on a newly laid patio caused by the overspill of using evergreen lawn feed on the adjacent lawn. (it has an iron compound in it to kill the moss). Whilst it does turn the rust marks purple when you put it on when you wash it off the rust stains are still there. So it is USELESS. However, I did find a product called Owatrol Net-Trol Wood Cleaner on the internet which they said removes rust stains.... it is brilliant I can't recommend it highly enough. It even removed some deep rust stains caused by other things. Don't worry that it says wood cleaner as it works on rust

I bought this product to treat rust stains on a white porcelain tiled floor, caused by a chrome table base and bar stools. It was a very bad stain. The product took off most of the lesser areas, but the really stubborn stain has not fully came off. I may need to use it more times. I tried it also on a white/grey granite composite worktop with rust stains. Again, it took some of the stain off but not fully. I used bleach on the worktop and got it more or less completely off. Maybe repeated uses of the product would work. Beware that when acting on the stain, it is a very strong smell and does turn purple.

I recently added to my multiple rust problems (fertilizer run over from pots, nasty ring from an over-wintered gas cylinder, marks from the fire pit) on Indian sandstone by leaving a bucket of ferrous sulphate I was using to kill moss on the white Portland stone at the front door 😱 This stuff removed it all successfully! It takes a few goes but simply add, wait 5 mins wash off and let dry and then repeat. The iron is turned dark purple and solubilized so it can then be washed away. You see where the iron is as soon as you apply as it goes as dark as beetroot. 24 hours after the final go over 3 days there was no mark even on the Portland stone. You can apply and wash in 5 mins so its not hard to do multiple applications. It took 8 goes to get rid of the worst of it. I would definitely recommend.

Had some rust stains on a brick wall. Rust was caused by a central heating vent that had been leaking for 3 years. Used this and rust was removed from both bricks and mortar in a matter of a few minuites. Applied it left for 5 mins washed away. Applied second time and used a plastic scrubbing brush to work it in, again washed off after 5 mins. Applied a third time and did the same as the second application. Worked very well all rust stains removed. Did use brick cleaner at the very end that removed the very last traces. Did not want to use brick cleaner as that can add different stains to the brick! Only left it on for about 1 min. Useful to see the colour change to purple when in contact with the rust. Make sure the area is well soaked before applying.

I bought this product having already resigned myself to the fact, that like all the previous products I had tried, there was no hope and my patio would forever be covered in brown and orange rust stains. Boy was I mistaken!! This stuff is amazing and has completely removed stains I have spent three years trying to get rid of. I cannot recommend it highly enough.

i have marks on patio from legs of metal chair. however although the rust marks turned purple for a bit they were still there after a couple of applications!!