Advantage Plastics of NY, Inc. specializes in thermoforming processes, heating thermoplastic sheets to a pliable state and forming them using molds and vacuum pressure. They emphasize the use of cast aluminum molds for precise control over cycle times, part shrinkage, and quality. The company offers various types of molds, including single or multiple cavities, male and female molds, and textured molds for enhanced finishes. Their thermoforming techniques include snapback forming, plug assist forming, billow forming, pressure forming, and twin sheet forming, tailored to specific job requirements.