Firwo?Calcined muscovite mica tape for fire-resistant wire & cable, consists of calcined mica paper bonded to an electrical grade glass cloth as the supporting fabric, impregnated with a specially selected high temperature resistant silicon elastomer. Cables wrapped with Firwo?Calcined Muscovite Mica Tape maintain excellent insulating performance even exposed to high temperature of 950. This tape is suitable for thermal and electrical insulation application of all types of fire-resistant wires & cables, especially those with small conductors. Firwo?Calcined Muscovite Mica Tape is compliant with GB/T19216--2003 /IEC331/BS6387CWZ. Test shows that, cables wrapped with two layers of this tape with thickness of 0.1mm maintain circuit integrity when exposed to temperature of 900 and voltage of 1.0KV for 90 minutes.