Used in marine, industrial, and automotive realms, primary wire is an electrical staple. 16 gauge wire is great for general electrical applications and features a polyvinyl chloride (PVC) insulation. Encompassing a single conductor copper wire, the smooth PVC surface protects against various acids, oils, and greases. From original installs to replacement projects, Del City has the primary wire for you. Our 16 gauge wire is available in a variety of colors and spool sizes for your specific needs.