2 Litre Rostio Tank Rust Remover + 500 ml Tank Protection Emulsion Tank Sealing set – Tank Rust Removal Made Easy

Did exactly what was required. Perfect solution to a rusty tank.

I haven’t ridden my SV650S for 9 years since the kids came along. When I opened the tank I was gutted to see the caked rust flakes. I did a bit of research and found Rostio. To be honest I wasn’t expecting to much but I couldn’t believe the results. The dilution was 10:1 per litre of hot water. My tank is approx 15 litres so I just used the two bottles to give it a bit more strength. I also bought a cheap immersion heating element from eBay and let it bubble for about 8 hours. I then wrapped it in old blankets to keep the heat in and left it for approximately 40 hours. I emptied the tank and flushed it out with cold water several times until all the rust flakes and crude were gone. There was a lot of rust pieces and I needed to swirl the tank and fast flush it to remove any flakes left behind. I then swirled the tank out with the Rostio emulsion to help protect the tank from further rusting. The results are amazing! Its a little more expensive than using litres of white vinegar but IMO Rostio is quicker and it leaves a professional job. I would definitely recommend this product. Just follow the instruction and you will also be pleased with the results.

So i bought this to de rust a fuel tank and oil tank on a 1950 BSA motorcycle.I'm guessing its a phosphoric acid mix but i couldn't find a data sheet for it.It does work on medium corrosion.... But you DO NEED TO COMPLETELY FILL the vessel for it to work.... No air pockest....If you only half fill and slosh it around every few hours the corrosion will just take hold on the part of the tank that isn't submerged... Worse than when you started.If your tank is 18 litres you need the 2 full bottles.Hot water also rapidly increases the effectiveness.Remember though if your tank is really bad you will just end up with pin hole leaks as the acid eats away at the paper thin rust that was holding the petrol in..... Also you could just buy the acid and make the mix yourself.Good luck

Worked a treat. Tank looks like new. I used 2 litres. So 20 litres when diluted as i wanted tank full to the top.

Product works effectively, used 2 bottles for a 16l tank and sealer afterwards is key as surface rust returns quickly without it, don't ask me how I know

I used rostio about 5 years back with fantastic results. Then after a daft thing 'brexit' I was unable to get it anymore in the UKNow however, thanks to Amazon and Rostio I can get it again!Cost for the result is fantastic, I used another resin based product, followed the instructions to the letter and it didn't go off. Ruined a fuel sender and petcock.Stripped it out and replaced it with Rostio (once I could get it again) and now done 2 fuel tanks with it

I used this on a 1979 Honda cb250n tank which had lots of Rust spots inside .I put petrol in and some nuts and bolts and swilled them about. Emptied and then poured in the rust remover and boiling water. Left for 36 hours and hey presto it worked. The rust spots have gone and the tank is now back and the bike ready to go

The tank rust remover worked brilliant removed alot of rust from my tank and showed a few tiny holes after so had to repair but be careful not to put on paint work has luck i had to do some repair to tank and respray as of tank sealer that didn't do any to seal it but other products were brilliant