https://www.evergreenglass.com/products/tps-insulated-glass.html TPS Insulated Glass TPS insulated glass (TPS IG) is a type of energy-efficient glass that uses a thermoplastic spacer (TPS) to separate the two or more panes of glass. The TPS is a flexible, closed-cell foam that helps to improve the thermal performance of the IG unit. This technology can be applied to various glass products, including insulated glass block.All Rights Reserved