Black core mats Any mat board with an inner layer of pressed cotton fibers that are black in color. The face of the mat may be any color, but the bevel at the inner edge - surrounding the opening - will be black.
Black core can also be imitated by using a black marker to color the more common white core bevel.
Custom-Made Picture Framing, Custom Stretcher Bar Frames
, Custom Artist Canvas, Custom Canvas Stretching, Canvas transfer & Dry Mounting Services
A division of USA On Canvas -