a reinforced composite structure is disclosed comprising at least a reactive resin , thermosetting system or other suitable resin composition sandwiched between two metal , thermoplastic or ceramic substrate materials . the structure can also be modified through the addition of one or more fabrics , metallic meshes , fibers , polymer spacers or other suitable materials positioned within the resin composition and sandwiched between the substrate materials . the resulting structure comprises a composite with reduced thickness and weight as compared to solid metal panels of corresponding flexural strength . the composition of the structure also allows for the tailoring of the properties to affect sound abatement , insulation , strength , and toughness among other characteristics . the structure can be formed and cut to shape to fit any of a number of suitable applications such as ceiling tiles and bulkhead panels in marine vessels .