Insulfrax Paper

Insulfrax® Paper is an evolutionary product for forming uniform, lightweight, flexible materials. The Insulfrax fibre used in Insulfrax paper is based on a calcium, magnesium and silicate (CMS) fibre chemistry. This CMS fibre chemistry has been successfully applied to solve a variety of application problems from 800° to 1300° C. In addition to high temperature resistance, Insulfrax Fibre meets European regulatory requirements (Directive 97/69 / EC). The chemical composition provides excellent wetting resistance to molten aluminium alloys. Tests on corrosive aluminium alloys at elevated temperatures have proven that Insulfrax is superior to traditional alumina/silica refractory ceramic fibres. Insulfrax Paper will generate small amounts of smoke and trace element outgassing during initial exposure to temperatures above 450°F (232°C).

  • Color white
    Melting point

    1310°C (2390 ° F)

    Classification temperature 1260°C (2300 ° F)
    Recommended Operating Temperatur

    1100 ° C (2012 ° F)

    Average Tensile Strengt >36 psi (>250 kPa)
    Thermal Shrinkage (24-hour soak) 2012°F (1100°C



    9-10 pcf (144-160 kg/m3)

    Fibre index

    >50% Wt

    including binder < 12% Wt
  • Thickness (mm): 1, 2, 3, 6 (0.04 inch, 0.08 inch , 0.12 inch , 0.24 inch )

    Width: 610 mm, 1220 mm (24 inches, 48 inches)