Profile: DEC Architectural Composites, A Div. Of DEC Assocs., Inc. specializes in custom fabrication. We offer fabrication to composite materials, which includes acrylic composite fiber reinforced acrylic resin, glass fiber reinforced gypsum, glass fiber reinforced concrete and Echo-Stone™, that is a lighter, more versatile blend of cemetitious minerals, aggregates, polymers and glass fibers. We have Magdaleno stone, which is a molded stone, manufactured with integral color and handcrafted texture replicating natural materials.