Ancor Dark Blue 18 AWG Tinned Copper Wire - 500' [100150]Dark Blue 18 AWG Tinned Copper Wire 500' Ancor Marine Grade wire products are the longest lasting and most rugged available, exceeding UL 1426, ABYC and US Coast Guard Charter boat (CFR Title 46) standards. They are constructed with premium vinyl insulation that is rated at 600V, 105C dry and 75C wet, stays flexible even in extreme cold ( 40F C) and resists salt water, battery acid, oil, gasoline, heat, abrasion and ultra violet radiation. Highest