Sizing or size is a substance that's applied to porous materials as a glaze or filler. It is used to change surface properties in papermaking, gilding, and the manufacture of textiles. Papermaking Sizing is used on fibers during paper manufacture in order to curb their tendency to absorb liquids by capillary action. By doing so, sizing keeps the ink on the surface of the paper where it was intended to remain. In addition, sizing affects abrasiveness, creasibility, finish, printability, smoothn… (More on Sizing)