This spring I would like to remove two heavy vinyl decals from my boat. I am afraid of scraping and it may ruin the paint. Has anyone used a product that will not harm the underlying paint. I tried picking at the edge to probably lift a portion to pull it away and it was no use I just could not get enough to safely pull it away, let alone knowing if any paint could come off also. The vinyl adhesive is quite strong. These decals have probably been on since the mid 90's and still going strong.

Gene