Product for business; Material: m- aramid; Specific gravity: 1.38; Strength: 5.6 g/de; Stretch: 38; Melting point (disassembly point): 371 °C; Heat resistance (normal temperature): 230 °C; Acid resistance: x Alkaline resistance: Yes. Weather resistant: x Uses: Heat resistant foam, filter; Size (in.): 900 x 1 00 x 10