Deluxe Materials announces Photo Etch Glue 25g AD93 . Easy & accurate application of metal etch parts. Have you been looking for the perfect adhesive for Photo Etch? . Look no further than Deluxe Materials Photo Etch Glue. It is water based, easily spread, non-brittle and for bonding all types of photo etch to plastic and metal. . Photo Etch Glue has several advantages over ca glue; it: - has a long shelf life. - allows adjustment. - allows water clean-up.