Thermal Division Refractory Drying Services Cornerstone is your one source for Heat Treatment, including Post-Weld Heat Treatment (PWHT), Hydrogen Out-Casting, Refractory Drying and more. Our expert team has knowledge to diagnose the problem and the expertise to provide the solution. Request Info about Refractory Drying Our Thermal Division services a variety of industries. Select your industry below for more information. Refining Chemical Power Terminals & Pipelines Offshore Pulp & Paper Civil Engineering Marine Aerospace & Defense Get In Touch Request Information NDT/InspectionThermal