Profile: Vistar Technologies, Inc. specializes in custom thermoforming and engineering applications. We offer thermoforming capabilities that are an alternative to other molding processes. Our thermoforming provides aesthetics, structural integrity and design flexibility in satisfying a broad range of product requirements. We produce parts from all thermoplastic materials, which include thin film and heavy gauge stock, via thermoforming process. Thermoforming is a method of shaping plastic sheet to conform to the contours of a mold through the use of heat and pressure. Our vacuum forming uses a negative pressure between the sheet and the mold. Pressure forming uses a positive pressure on the opposite side of the sheet and a negative pressure between the sheet and the mold.