Truseal produces superior warm edge spacer systems with consistent after-sales service and a warranty program for qualified window fabricators. Window manufacturers can chose from a variety of Truseal high-performance spacers based on cost, manufacturing capabilities, thermal performance and energy efficiency. The patented Duralite® is a third generation warm edge spacer system offering the lowest U-value rating compared with other spacers and produces the highest energy-efficient window system available on the market. The design features a unique composite laminating technology without the use of metal resulting in superior thermal and durability performance. Duralite´s technical performance in terms of low conductivity, argon permeability and U-value is unparallel. At the same time, Duralite is simple to incorporate into existing automatic or manual application platforms and its flexibility enables it to be adaptable to any window design.