The most commonly used material for making ribbon cables is silicone rubber. Due to the elasticity and elastic properties of silicone, the ribbon cable is molded into a flat cable that includes multiple conductors of the same size.
Other than silicone rubber, the insulating materials used for making ribbon cables are Teflon, olefin materials, and PVC. The stranded copper wire is commonly known as one of the most used cables for making ribbon cable assemblies. They are available in sizes ranging from 18 AWG to 34 AWG.