| No. 3X Process Board - For paste-ups, key-lines and mounting. Rubber Cement does not stain. White on both sides. Double thick 28 ply. (.090).No. 40C Mounting Board - Lightweight gray mounting board. (.040) thickness.No. 20C Mounting Board - Unfinished gray surface for mounting and backing of pictures and prints. Approximately 3 /32 in. thick (.080).No. 97 Mounting Board - This board is good for mounting, paste-ups and key line drawings. Surfaces all strip easily and dark gray reverse side is also useable. One side smooth, one side rough. Double thick, heavy weight (.090-.095). |