Unifol 3900 (3980, 3981, 3982, 3983, 3988, 3989) thickness of monomeric printing foils is 80 microns in thickness, providing excellent print quality for solvent, eco solvent, UV, thermal all-digital printing machines. Unifol which is Printing with superior print quality 3900 The specially produced 138gr / sqm2 craft clay -coated carrier papers are flat and do not curl during printing.