Just another reason 6 AWG Duplex boat cable is perfect for marine use.
First, the cable is built from finely stranded, Type III tinned copper conductors. How does it do that? Features: Extruded exterior cable insulation with no gaps Highly flexible color coded wire insulation Stranded, tinned copper conductors Annealed Finely Stranded Tinned Copper ASTM B172 Class K Resistant to - Acid, Alkali, Abrasion, Flame, Gasoline, Oil, Moisture Compliances: UL Standard - 1426 U. This leaves no space for moisture or air to accumulate.