Durable 20 AWG 200ft Silicone Wire | Low Impedance Tinned Copper for Efficiency Durable 20 AWG 200ft Silicone Wire. -Low Impedance Tinned Copper for Efficiency. Conductor: 20 gauge silicone wire composed of 100 strands of 0.08 mm tinned copper for maximum flexibility and conductivity. byJuly 3, 2026