Removing Waterproof Forget Nails from tiles

weslon77

Hi, sorry this is my first post and searched for an answer but nothing found. I am doing up my bathroom and used Waterproof Forget Nails to secure the bath against the wall, this stuff works really well but I did manage to get a little excess on to the tiles above the bath. I tried to remove it when wet but this stuff is super sticky and messy so I waited until it dried and while most of it peels of it leaves a thin dull film which does not seem to come off even when using a knife. I do not want to scrape to hard and was hoping someone know if there is any "remover" that I could use or any suggestions if you have encountered a similar challenge.

Many thanks !