I'm in the middle of pulling off the pinstripes on the hull that hide the color changes in the gelcoat, and having a bit of a problem. For the most part I'm getting all the old adhesive off with the stripes, but some of them leave sticky crap behind on the hull. What solvents are safe for gelcoat, but will disolve the glue? I'm using a heat gun set to about 140 degrees to loosen it up and it's pulling off fairly easily, but since there's 4 stripes on a 17 foot hull I have quite a bit of work to do.