Features and specifications: 1) SiO2 content: > 97% ï¼Shrink rage: ≤3% 2) Working temperature: 1,000°C 3) Standing instantaneous temperature: 1,450°C 4) Weight: 90~1,200g/sqm 5) Width: 0.5~1.2m 6) Length: 50m/roll 7) Used for heat insulation and fire resistant products