Carbon foil left on an ally fuselage in salt water creates galvanic corrosion. Tsk tsk. Foil fizzles onto fuselage.

Don't bother with heating, cooling, messy liquid penetrants n WD40.

Fill your bathtub with 4 x 2L bottles of vinegar, top up with warm water to the top of the join and soak ur weapon for 12hours.

Static rig flat-strap webbing from a roof beam or rafter around the foil and tap tap the mast/fuselage down with a rubber mallet.

Tap tap tap. Victory. . . . and you wont ever leave ur overpriced carbon on ur cheap ally again.