PORON® Cushion Insole Materials. Superior performance for the life of the shoe.   ROGERS Corporation manufactures speicalty materials for applications in the wireless communication, computer, transporation, imaging, and consumer markets. While Rogers is involved in manufacturing many materials, the most significant to Sergeant Corporation has been their high performance elastomers, specifically PORON. PORON is urethane foams and silicone materials that resist collapsing and remain resilient under repeated shock and vibration, and over wide temperature fluctuations. With such standards PORON is used in gaskets, seals and pad in communications equipment, cars and trucks, computer equipment, appliances, sporting goods, footwear, foot comfort and medical insoles.