An improved package for photopolymerized recording materials is disclosed. The package consists essentially of a cover plate, a substrate spaced apart from said cover plate, at least one of the said cover plate or said substrate having a coating on an internal surface of a photopolymerizable compound or a catalyst therefore, and fluid ingress means for introducing fluid into the space between said cover plate and said substrate. In a particularly preferred embodiment the ingress means is associated with a collapsible vessel located outside the basic package. Also disclosed are methods for using the package such as in holographic nondestructive testing.