High Temperature Insulation Ceramic Fiber Refractory 1430 Maftec Blanket. Lightweight Insulation: Low thermal mass design ensures rapid heating and cooling with minimal heat retention. High Thermal Shock Resistance: Withstands rapid temperature changes where traditional refractories fail. Customizable Shapes: Any shape can be cut to fit specific installation requirements and applications. Versatile Density Options: Available in densities of 96kg/m3 and 128kg/m3 to suit different load requirements. OEM Service Support: We accept OEM orders and welcome customers to contact us for custom details. Strict Quality Control: Complete QC system tests chemical composition and physical properties for every batch.