LTP GROUT STAIN REMOVER (5L)

After trying 2 types of rust remover on the brown stains on my porcelain patio with minimal success I bought this. It has a bit of a smell but not overwhelming and being outdoors probably helped. I saw it start working on contact as it went from clear to white and started to fizz on contact. It needed a bit of rubbing with the ltp emulsifying pad and I used a nylon scrubbing brush but as I continued to apply product with a paint brush the stain was lifting. Takes a bit of time, elbow grease and patience but after weeks of trying different things this has worked like a dream. I like the fact you can see when it’s working and there were some marks I could see it wasn’t right for but the stubborn marks I thought were never going to go have now all gone and I’m over the moon! It’s been a cooler cloudy day which made keeping it wet much easier. I tackled the stain a bit at a time to prevent it drying out over the larger patch. The 1L bottle worked great for what was quite a big stain over 1m long and quite wide closest to the wall. Much cheaper than the rust remover and I’ve still got product left from the 1L bottle if needed in the future. Perfect on efflorescence - job (finally) done!

I wasn't sure how good this would be bought after scrubbing a small area of grout haze for ages with limited success I thought I'd give this a go. I used a tile grout sponge to apply and diluted it 1:1. The grout haze came off really easily, pretty much wipe on wipe off. I used a damp microfibre cloth to wipe afterwards and the tiles have come up really well. This was black grout haze that was removed from wood effect bathroom tiles. I really thought I'd still have to scrub for hours but it was really easy. I did wear gloves because this is an acidic product. I was worried it might damage the acrylic bath but it didn't, though I used it sparingly and put a cloth on the edges of the bath to catch and drips. I'm so impressed with this stuff!

Used this stuff to remove a dusting of grout on a small patch of mosaic tiles used as a back splash. Mixed it in about a 2 to 1 ratio in a small plastic tub, then used an old toothbrush to apply it. Scrubbed for a few seconds and then wiped clean with a soft cloth. Took off 99% of the grout with this method, then used my fingernail to remove the final stubborn 1%. Took off a star s it also removed some of the sealant around the sink.

Really great product. Tried everything scrubbing for a full day to remove residual adhesive from some tiles I had put down and it still hadn’t come off. Spent £12.99 on this and it took about an hour to get it off. I did have to use it undiluted as, even at a 1:1 dilution with water it didn’t work. But undiluted it was fantastic and I had enough left over to get adhesive off the patio outside the back door where I had trodden some of the adhesive in. Well worth the money!

Used this full strength to remove surface mortar stains on an exterior brick wall. Takes a fair bit of scrubbing and removed abput 80% of residue left by sloppy bricklayers.

Had porcelain tiles laid needed to get rid of stubborn grout /cement residue had to use it neat but done then job Good price Good service

I recently had my small conservatory floor laid with pale terracotta-effect porcelain tiles and a dark grey grout. The (excellent) tiler washed the tiles over after grouting but advised that I wash the tiles again when the grout had fully dried after a day or so to remove the hazing resulting from using a dark grout with a pale tile. I researched how to do this properly and decided to try this grout stain remover. I used the remover exactly as directed (diluting one volume the remover with 4 volumes of tap water) and applying the solution generously with a cellulose sponge while wearing protective gloves since the remover is quite acidic. I then rinsed the solution off by rubbing the tiles with plenty of plain tap water and a microfibre cloth. I was surprised by the amount of hazing removed since I hadn't thought there was much hazing present, but I was really pleased with the result - the hazing was completely removed without apparently damaging the tiles or grouting and the tiles were left looking very clean, pristine in fact, just as I hoped and without a lot of work.

Worked surprisingly well on the grout residue we had on our porcelain garden tiles, mixed as recommended.