What materials should be used for Frames?
* Frames can either be wood or metal. If you choose wood, ask that the rabbet be lined with a barrier of some type, e.g., aluminum or polyester tapes with acrylic adhesives. This prevents acid in the wood from transferring to the mat package. * Frames should be strong enough and have a deep enough rabbet to hold the mat package securely inside the frame. * The mat package should be held in place with pins or brads, never with pressure sensitive tape. * A moisture barrier such as polyester film or polypropylene should be placed between the back board and the dust cover if the print will hang on an outside wall.
