I don't think there is a "remover" that will dissolve the silicone. Products such as this one soften the silicone to make it supposedly easier to remove. http://www.canadiantire.ca/en/pdp/d...gsAndReviews&utm_content=Default#.Vzi_k5BwUqw
Myself, rather than razor blades, I use a small piece of softwood, applying pressure to break the bond. The wood is harder than the silicone, but likely softer than the tub, so less likely to cause damage. Followed by scrubbing with cleanser.
For sure, new silicone will not stick to old silicone, so you have to get the old stuff FULLY removed.
Myself, rather than razor blades, I use a small piece of softwood, applying pressure to break the bond. The wood is harder than the silicone, but likely softer than the tub, so less likely to cause damage. Followed by scrubbing with cleanser.
For sure, new silicone will not stick to old silicone, so you have to get the old stuff FULLY removed.