COR PVC Tape (duct tape) can be used to seal seams.

Duct tape and duct sealant are not required when installing KEN-LOK Spiralo ducts and fittings. The rubber seal at the end of each spigot creates an airtight connection with the duct. However, each fitting should be attached to the duct using quicks. When installing rectangular ducts and fittings, however, it is necessary to caulk or tape the connections. In addition, quicks should be used when two parts are connected, and PVC tape should be used to seal the connection. The advantage of PVC tape is that it does not tear easily should the steel shift.