The 970 paper is a 2300°F grade material made from high-purity Fiberfrax washed fiber. The washing of the fiber gives great uniformity to the paperʼs structure while reducing weight and improving the thermal performance. Preferred product for die stamping and cutting operations where unfiberized particles in the paper can lead to excessive die and blade wear. 1/8" and 1/4" thick material available. If any other thicknesses or sizes are required, please contact us for a quote.