Our 18 gauge M22759/11-18 cable is part of our line of Mil-Spec Wire & Cable. M22759/11-18 is composed of a 19/30 stranded silver-coated copper conductor with polytetrafluoroethylene (PTFE) insulation. These cables are rated for a voltage of 600 volts, have a maximum temperature of 200°C, and weigh approximately 8 lbs/MFT. Per specification, this product will have splices. If continuous lengths are needed, please ask.