Hadek is the expert on power plant chimney and ductwork protection, and the global distributor of the Hadek™ Block Lining System that protects power station chimneys and flue gas ducts from low temperature, acid condensing operation. The borosilicate glass block lining technology is used by coal, oil, lignite and biomass firing power stations worldwide, mostly downstream of flue gas desulfurization (FGD) plants.The key to the Hadek Block Lining System is closed-cell borocilicate glass blocks who are attached to a substrate using a flexible, chemical resistant adhesive. Our Block Lining System can be applied in new and existing chimneys. What's unique about Hadek's borosilicate glass block linings: - Complete chemical resistance to sulfuric acid - Low weight, no anchors needed - Temperature resistant to 200ºC/392ºF and higher for short periods - Thermal cycling and shock resistant - Suitable for seismic regions - Virtually maintenance free - Long service life Hadek has supplied borosilicate linings to customers worldwide. When you choose to have a borosilicate glass block lined chimney, Hadek will be ready to support you with its team of experienced engineers and technical supervisors. We deliver: - Research and feasibility studies - Detail engineering - Installation supervision - Lifetime performance monitoring system - 10 year limited warranty