This tape was designed for easy cleanup with the dull finish of a Lace Front Tape. Duo-Tac buyers swear by this tape. A very popular option with our hair extension customers. Maximum wear (2-4 weeks) tapes are the longest lasting tapes we make. Depending on temperature, humidity, and body oils, they can last up to six weeks. usually the most tacky, they require more skill to apply. Also known as DuoTac.