Hi: All...Well the hands down winner in the Goo Off contest wasn't even a contender. My old friend and yellowed plastic headlight lens cleaner...BRASSO!!! Dab some on the goo( crusty by now)... let it set a spell ... rub till the goos gone, and when dry to a haze, buff with a dry soft cloth.
Down side of this is that it's been there long enough to have made a stain in the gel-coat albeit quite faint and not visable from the ground.
Up side is that the yellowed range vent hood is now white again.
Proves that you... never can tell!!! Now about those little black specks on the roof and in the caulking? Alf
escape artist N.S. of Lake Erie