Duplex Board is a kind of paperboard or cardboard, also named greyboard, due to its double side grey color. It consists of two layers. The exterior one side of the board often is coated with a bright white appearance to give it a glossy sheen. Coated duplex board one side with a glossy coated surface suit for superior printability.
The paperboard thickness description always is millimeter, or by gsm (grams per square meter). 1.5MM=900gsm, 2MM=1200gsm, 3MM=1800gsm.
