Heatless Ink II R3 TIJ Cartridge can print on non-porous materials without the use of a heater. R3 new ink is ideal for printing on packing! Printing on a wider range of materials. As well as semi-porous materials, this ink can print on non-porous materials (blister foils, oriented Nylon, varnish overcoats, clay-coated materials, aqueous acrylic resin coatings,polyesters etc.). Better light-fastness, water resistance and hear resistance than our previous inks. It is now possible to print on previously unprintable materials.