From - DaTong Tech

3M Tape : 

3M R9999 Repulpable Flying Splice Tape

3M R9999 Repulpable Flying Splice Tape

3M 9996J, 9996JH, 3M R9999, is a 2.5 mil, double coated tissue that is a repulpable, flying splice tape for heat set commercial printing.
Maximum Short-Term Temperature 400°F

3M Repulpable Flying Splice Tape: R9999,R9996,R9999,R9999, 8387