INSWOOL HP Blanket from HarbisonWalker International is a refractory ceramic fiber (RCF) blanket rated at 2,300 degrees F. It is flexible, highly insulating, thermal shock resistant and lightweight. It is not suitable for environments with high gas velocities or particulates. It is available in a range of densities and sizes. Standard size is 1" x 24" x 25'. Call for more information.
INSBLOK®-19 is a mineral wool block insulation product from HarbisonWalker International that provides high strength, low thermal conductivity, good moisture resistance, and excellent work-ability. It is rated at 1,900 degrees F. It's organic binder gives it excellent cold strength but it will dissipate above 475 degrees F. It meets ASTM C612 Class 5 specifications. These boards are principally used as a backup lining to lower furnace shell temperatures. Measures 1" x 12" x 36". An order includes 16 sheets per carton. Call for more information.
INSBOARD 2300 LD from HarbisonWalker International is a low-density, vacuum formed ceramic fiber board rated at 2,300 degree F. It has excellent insulating characteristics, thermal stability, and is lightweight, providing easy cutting and machining in the field. Applications include areas where high quality back up insulation is required. Measures 1" x 24" x 36"'.