Piezography K7 ink shades 2-7 are both matte and glossy compatible. For matte printing, the Piezography Shade 1 matte black ink is used. For glossy printing including baryta, the use of Photo Black shade 1 and Piezography Gloss Overprint is required. The Gloss Overprint is applied as a second printing.
The use of Piezography Gloss Overprint completely eliminates bronzing and any trace of gloss differential. When properly applied it is impossible to tell where the ink ends and the paper begins.
This Gloss Overprint is not used in Piezography Pro. Piezography Pro systems use a Gloss Chroma Optimizer that is printed simultaneously with the inks.
Piezography Gloss Overprint is also popular with Epson, Canon and HP color photo studios seeking to make their color output stand out from the crowd. On color prints, a second printing of Piezography Gloss Optimizer equalizes gloss differential and creates an image that is more photographic than "inkjet". QuadTone RIP can be used to control this coating in a supported large format printer. For example, any supported legacy Epson printer with at least one functional print head can be used to produce the overcoat. Make use of that old Epson printer in the corner!