What happens if I leave 3M™ Performance Plus Duct Tape on longer than 6 months?
It will continue to hold very well indefinitely indoors. After 6 months, it is possible that you may start to see some residue when the tape is removed. That may vary depending on the surface, the temperature, humidity, and other conditions such as foot traffic. Outdoors, 3M Performance Plus Duct Tape should hold very well for up to a year. After a time, the sunlight will begin to penetrate the backing and cause the adhesive to transfer and eventually dry up. This is common with conventional duct tape after only a short time.
