Cold Glue Tape is a very sticky, uncurred form of butyl which bonds extremely well to the surface of Butyl liner.
You simply clean the overlapping surfaces to be joined, apply the tape to one surface, remove the backing paper and press the second liner surface on to the tape and roller it out.
The joint is then made and within a few hours the tape will have sufficient strength to be worked with, further curing then occurs over the next 24 hours.
Butyl Tape
