Grafix® 18" x 24" Double Tack Mounting Film Mounting film can be difficult to find and price but Alvin is a fantastic company for mounting films. The 18X24 size film is great for both large and small projects and can make any mounting project much easier. Unlike other mounting films, Alvin applies a high quality tack glue for maximum secure adhesion of archival material. This film would be great for photographs, letters, post cards and more. The Alvin Archival Mounting Film in the 18X24 size is perfect for both beginners and advanced users. With quick and easy application, users can expose the tacked side of the film for adhesion of selected archival material. This film is long lasting, durable, and perfect for users that want a mounting film that gets the job done efficiently and in less time!