Duct Tape

Duct tape is made with any one of a variety of tightly woven fabrics to provide strength. The threads or fill yarn of the fabric may be cotton, polyester, nylon, rayon or fiberglass. The fabric is a very thin gauze called "scrim" which is laminated to a backing of low-density polyethylene.

Duct tape is used in situations that require tape that is strong, flexible, and very sticky. As a consequence of its stickiness, duct tape tends to leave a residue when it is removed.

Therefore, duct tape should be avoided whenever the tape will be removed at the end of the project e.g. don't use it as a replacement for blue painter's tape when painting.