If you ever wonder why a black looking mold seem to appear on the gelcoat in under-deck, bilge areas and the like, it is mold. The wax used to fully cure gelcoat molds. If you wipe it with acetone and clean gelcoat is underneath it's moldy wax. Well I added Duratec's High Gloss Additive to the gelcoat in my floor storage boxes and the shine shown will look this way 10 years later. No wax, No Mold. This is getting SeaDek in the flat areas so I didn't kill myself fairing it out but still didn't want any wax.

Gelcoated w Duratec.jpg