I Recently Did This On A Hunter 34
We had a Hunter 34 and we just went through this excercise last winter. The striping you are talking about is called a Cove Stripe. I assume that your boat also has the wide stripe that's really three stripes -- a navy blue, a white and a light blue.Anyway, we tried all sorts of things from chemicals to hairdryers. In the end, we invested $20 in a heat gun from Home Depot and this did the trick. Go slow, as others have said. But with a heat gun and a scraper, the stripes will come off fairly easily. As to the heat gun, I wouldn't turn the thing up full blast and hold it in one spot for a while, but I think the risk of damaging the gellcoat is overstated (there is a risk if you are not careful, but not a serious risk so long as you pay attention). Besides, if you are doing this in remotely cold weather, a hairdryer just won't do it.The product to use to remove the glue residue is automotive break parts cleaner. This is better than anything else, including WD-40. It's cheap (something like $4.00 a can), and you simply spray it on and wipe it off with the a paper towel. The glue comes right off. Break cleaner is also good to clean all sorts of contaminents (tar, gum, black streaks, etc.).As your boat is older, after you remove the cove stripe, the gellcoat underneath will be discolored from the rest of the hull (it will be whiter). This will provide an obvious line from which you should apply the bottom of the new stripe. Use soapy water in a spray bottle to spray onto the hull immediately before applying the new stripe. This will allow you to move the stripe around a bit after you place it on the hull, and it will make it much easier to get the stripe straight.Good luck.Dan Goldberg