Microporous Elite Boards Microporous Flexible Boards for Furnace Lining Back-up Insulation. Superior Thermal Insulation: Heat insulation performance is 3-4 times better than traditional materials at high temperatures. Customizable Panel Sizes: Available in custom sizes to fit specific equipment requirements. Class A Fire Rating: Made with inorganic fire-proof nano powder for excellent fire safety. Low Thermal Conductivity: Thermal conductivity coefficient lower than still air, ranging from 0.018 to 0.030 W/m.k. OEM Service Available: Manufacturer accepts OEM orders with reasonable pricing. Excellent Chemical Stability: Features good elasticity, long service life, and resistance to thermal shock. Wide Application Range: Suitable for furnace lining, aerospace, automotive, and various industrial thermal equipment.