Marine-Tex FlexSet Marine Epoxy
This rather unique epoxy from Marine-Tex is designed to remain flexible even when it has fully cured. A true marine epoxy, it can be applied above or below the waterline, sticking equally well to wet surfaces as it does to dry ones. The fact that it remains flexible makes it ideal for PVC pipe through the hull fittings, rails and trim, protecting electrical insulation, RV storage tanks, and use on flexible surfaces as well such as inflatable boats. However, it does not work well for applications which require drilling, sanding, or machining after curing. Packaged in a twin-tube plunger, this epoxy works extremely well for connecting dissimilar materials, such as copper to wood or steel to fiberglass.