Ancor Grey 18 AWG Tinned Copper Wire - 500'

Ancor Grey 18 AWG Tinned Copper Wire in 500-foot spools is purpose-built for marine electrical systems where salt water, UV exposure, and extreme temperature swings demand uncompromising reliability. This tinned copper marine-grade wire exceeds UL 1426, ABYC, and US Coast Guard Charter Boat (CFR Title 46) standards—the regulatory benchmarks that separate consumer-grade wire from equipment trusted in professional and offshore applications.

The 18 AWG gauge provides 500 feet of conductive capacity for mid-range power distribution applications on vessels up to 40 feet, covering navigation lights, bilge pumps, auxiliary circuits, and instrumentation runs. Premium vinyl insulation rated at 600V and 105°C dry/75°C wet maintains flexibility in extreme cold down to –40°F while resisting salt water corrosion, battery acid spill, oil saturation, gasoline exposure, heat cycles, abrasion, and ultraviolet radiation. Tinned copper construction prevents oxidation and galvanic corrosion in the salt-air marine environment—a critical advantage over bare copper that degrades rapidly when exposed to saltwater spray and humidity.

Weekend anglers running new electronics, serious offshore fishermen upgrading aging harnesses, and boat owners performing routine rewiring all benefit from Ancor's proven longevity in harsh marine conditions. The 500-foot spool accommodates full-boat rewiring or multiple circuit installations without waste, while the grey color coding aids circuit identification during installation and future troubleshooting. This wire is engineered for permanence—a one-time installation that won't degrade or require replacement due to environmental breakdown.