How to remove old silicone! The only way! Phosphoric acid can easily remove sealant!
In this video, I'll show you how to remove old silicone from a bathroom. I tried a ton of things: vinegar, solvent, white spirit, acetone, and much more. The only thing that really worked was "Tytan." Its main ingredient is phosphoric acid, which easily removes sealant, even dried-out ones! This Spanish product comes in a syringe-shaped tube, 80 ml. It's the only one that actually worked. Everyone else advised cutting it off with a knife.