How to remove Vinyl Top glue?

If you have any sign shops in your area, they have a product called Rapid Remover, spray it on the glue will soften, then use a body filler squeegee or plastic razor blades and roll it off, and repeat till mostly gone then use a rag with the remover on it for the final cleanup. Rinse with soap and water. We use it all the time to remove graphics and have never had a problem with paint reactions. Costs about $ 30. a gal but works very well.