Originally Posted by Marin
To remove the vinyl lettering that was on our boat when we bought it we used heat (carefully) and then orange oil to remove the sticky residue.
There seems to exist no concoction on Earth that will actually dissolve the adhesive from vinyl letters. The best adhesive "removers" only loosen the adhesive so that it can be scraped off with razor in sheets or rubbed off into little balls.
It is a curiosity to me that someone like 3M can't invent a vinyl letter adhesive that holds properly for years and yet has a direct "antidote" to easily dissolve
the adhesive rather than just loosen it.