Definitions for "Dry mount"
to attach a print to another surface, usually mat board, by placing a sheet of dry-mount adhesive between the print & the mounting surface.  This “sandwich” is placed in a heated mounting press and the adhesive melted.  Pressure sensitive adhesive that doesn't require heat may also be used.
A framing method in which a print is glued to a stiff backboard such as foam core, with a heat activated dry adhesive. This method is not recommended for a limited edition print of any value, however if exposed to constant extreme temperature change and humidity such as in a bathroom or at the beach, it can be a way of keeping the artwork from buckling.
a procedure used to adhere a print or poster to a stable backing board and guarantees your artwork will not ripple or wave