Electro Tape duct tapes utilize triple-layer construction consisting of a polyethylene (PE) plastic backing for waterproofing, a cloth middle layer that provides strength and affords a straight tear and a quality rubber-based adhesive for durable holding power. Changes to these three components: PE backing, cloth, and adhesive provide various grades of tapes resulting in different performance and cost characteristics.

Professional and Premium Grade tapes are constructed for long-term, high demand applications. They often contain additives or  special formulations, which provide resistance to sunlight and harsh conditions.