CM-Ceramics 2600 F Ceramic Fiber Insulation 31" X 24" X 1" 8 Pound Morgan Ceramics with Knife for Glass Work, Knife Making, Foundries. With Product Data Sheets. Product Bundle. 2600 F Temperature Rating and Chemical Resistant 8# tough material. 31" X 24" X 1" Made by Morgan Thermal Ceramics in the USA the best name in Ceramic Insualtion Fiber Brand Ergo Save-Your-Blade-Utility Knife This is a broader grip, more ergonomic knife offered only by CM-Ceramics (Reg. U.S. Pat. & TM. Off) For Very Hi-Temperature Applications that Other Ceramic Fiber Insulation Blankets Can't Take. Superior for Forges, Foundries, Kilns, BlackSmiths and BlackSmithing,