FILAMENT TAPES - TRANSFORMER INSULATION MATERIAL In Transformer and Motor Coil applications; coil insulation, coil bundling and termination tape are also used in sections that require mechanical strength. Monofilament Tape 12 mm x 100 Meters - ( 100 Pieces / Box) Monofilament Tape 24 mm x 50 Meters - ( 50 Pieces / Box) Cross Filament Tape 24 mm x 50 Meters - ( 50 pcs / box)