Ancor Dark Blue 18 AWG Tinned Copper Wire - 1,000'

Ancor Dark Blue 18 AWG Tinned Copper Wire in 1,000-foot spools is marine-grade electrical cable engineered for boats, RVs, and saltwater applications where standard household wiring fails. Built with tinned copper conductors and premium vinyl insulation rated at 600V, this wire exceeds UL 1426, ABYC, and US Coast Guard (CFR Title 46) standards for charter vessels. The tinning process prevents oxidation and corrosion that typically compromises bare copper in harsh marine environments.

The 18 AWG gauge delivers 1,000 feet of usable length per spool—ideal for through-hull wiring, bilge pump circuits, navigation light circuits, and auxiliary systems on boats ranging from center consoles to cruising sailboats. Insulation rated 105°C dry and 75°C wet remains flexible at extreme temperatures down to –40°F, critical for winter storage and northern boating. Chemical resistance to salt spray, battery acid, diesel fuel, gasoline, and UV radiation ensures reliability across seasons without brittleness or degradation common in automotive-grade wiring exposed to marine conditions.

Offshore anglers and cruising sailors rely on tinned copper wire for systems where failure creates safety hazards—navigation circuits, engine instruments, through-hull sensor wiring, and DC power distribution below decks. The dark blue color aids circuit identification in tight engine compartments. The 1,000-foot bulk spool format suits professional boat builders, marine electricians, and serious DIY restoration projects where point-to-point reliability matters more than pre-assembled harnesses.

This wire meets the same standards demanded by ABYC (American Boat & Yacht Council) and exceeds requirements for both fresh and saltwater installations. Unlike cheaper copper alternatives, tinning prevents the green corrosion oxide layer that increases resistance over time, maintaining consistent voltage delivery to critical marine electronics. The 18 AWG size suits general wiring circuits; consult ABYC gauge charts for engine block heaters or high-amperage applications.