Progressive Foam Technologies, Inc. was incorporated in 1992, but the principals have been in the business of meeting market demands with expanded polystyrene (EPS) technology much longer. In fact, each has more than thirty years' experience in the industry. The company was launched in 1992 with a patent for ThermoWall®, an EPS foam contoured material designed to enhance the performance characteristics, appearance and marketability of vinyl siding. .