Repositionable Dry Mounts (RDM)
This is a pressure-sensitive mounting material. RDM is a microthin, clear Mylar® film coated on both sides with an adhesive; specially formulated for photographic purposes. This "delayed-set" adhesive allows for repositioning of prints before providing a permanent bond. No heat is needed. The Mylar® base will not absorb moisture or change its characteristics through time; thereby it eliminates the common mounting problems that are experienced with other mounting materials. RDM sheets are made ¼" oversize which eliminates alignment problems and makes it easier to use.