... non-asbestos, fiber length, the ball less residue, a small bulk density, strength, flexibility, and ease of punching, winding, ... roof sealing Product Classification Ordinary high aluminum silicate fiber paper type aluminosilicate fiber paper. Applications :1. Insulation gasket; 2. Electric heater ... Classification temperature: 1000 °C, 1260 °C, 1350 °C B bulk density: 200Kg/m3 C thickness: 0.5, 1, 2, 3 ...