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- Core: Phlogopite, synthetic or calcined muscovite mica paper (mica content typically 60\u201385% or 80\u2013160 g\/m\u00b2 depending on grade)<\/li>\n
- Reinforcement: Alkali-free glass fiber cloth (single-side or double-side) or PE film<\/li>\n
- Binder: High-temperature silicone resin (halogen-free)<\/li>\n
- Orientation: Mica side faces the conductor for maximum insulation performance during fire<\/li>\n<\/ul>\n
![\"Cross-Section-Fire-Survival-cable-doingcable\"](\"https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Cross-Section-Fire-Survival-cable-doingcable.png\")
<\/p>\nTypes of Mica Tape and Temperature Performance<\/h3>\n
\n\n
\n \nTaper<\/th>\n Typical Flame Temperature<\/th>\n Principaux avantages<\/th>\n Common Applications<\/th>\n<\/tr>\n<\/thead>\n \n Phlogopite Mica Tape<\/td>\n 750\u2013900\u00b0C<\/td>\n Excellent thermal stability, cost-effective, industry standard<\/td>\n Power cables, control cables, general fire-resistant constructions<\/td>\n<\/tr>\n \n Synthetic Mica Tape<\/td>\n 950\u20131050\u00b0C<\/td>\n Superior high-temperature endurance, higher dielectric strength<\/td>\n Critical safety systems, nuclear, high-rise emergency circuits<\/td>\n<\/tr>\n \n Calcined Muscovite Mica Tape<\/td>\n 900\u20131000\u00b0C<\/td>\n Enhanced structure after calcination, balanced performance<\/td>\n Marine, offshore, and high-voltage fire-rated cables<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Typical Technical Specifications<\/h3>\n
\n\n
\n \nParam\u00e8tre<\/th>\n Typical Range<\/th>\n Test Reference<\/th>\n<\/tr>\n<\/thead>\n \n Thickness<\/td>\n 0.08\u20130.16 mm (\u00b10.015 mm)<\/td>\n ISO 9073-2 \/ IEC 60371<\/td>\n<\/tr>\n \n Total Weight<\/td>\n 125\u2013225 g\/m\u00b2<\/td>\n \u2014<\/td>\n<\/tr>\n \n Mica Content<\/td>\n 80\u2013160 g\/m\u00b2 or >60\u201385%<\/td>\n \u2014<\/td>\n<\/tr>\n \n Glass Cloth Content<\/td>\n 24\u201342 g\/m\u00b2<\/td>\n \u2014<\/td>\n<\/tr>\n \n R\u00e9sistance \u00e0 la traction<\/td>\n >100\u2013200 N\/cm or \u2265125 N\/15 mm<\/td>\n ISO 9073-3<\/td>\n<\/tr>\n \n Breakdown Voltage<\/td>\n >1.0\u20133.0 kV\/layer<\/td>\n IEC 371-2 \/ DIN 53482<\/td>\n<\/tr>\n \n Fire Performance<\/td>\n 90\u2013180 min at 750\u20131050\u00b0C, 0.6\/1 kV<\/td>\n IEC 60331, BS 6387 C\/W\/Z<\/td>\n<\/tr>\n \n Insulation Resistance<\/td>\n >500 M\u03a9<\/td>\n \u2014<\/td>\n<\/tr>\n \n Teneur en halog\u00e8nes<\/td>\n Zero<\/td>\n IEC 60754<\/td>\n<\/tr>\n \n Continuous Length<\/td>\n Up to 2000\u201330 000 m (pad or spool)<\/td>\n \u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Custom widths (typically 5\u20131000 mm), lengths, single\/double-sided glass, and film-backed constructions are available to match specific conductor diameters and production line speeds (high-speed wrapping up to 70 m\/min possible with optimized grades).<\/p>\n
Principaux avantages techniques et gains de performance<\/h3>\n
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- Unmatched Fire Resistance & Circuit Integrity<\/strong> \u2014 Maintains dielectric strength and prevents conductor exposure even at 750\u20131000\u00b0C, enabling cables to pass IEC 60331 and BS 6387 CWZ tests for 90\u2013180 minutes.<\/li>\n
- High Dielectric Strength & Electrical Insulation<\/strong> \u2014 Excellent isolation properties (verified >1.0\u20131.8 kV per layer depending on grade and thickness) ensure reliable performance under both normal and emergency conditions.<\/li>\n
- Superior Flexibility & Processability<\/strong> \u2014 High tensile strength combined with excellent elongation supports smooth longitudinal or helical wrapping (recommended 25\u201350% overlap) on high-speed cable production lines without cracking or delamination.<\/li>\n
- Low Smoke & Halogen-Free Performance<\/strong> \u2014 Particularly in calcined grades, the tape produces minimal smoke and no corrosive halogen gases, supporting safe evacuation and reducing secondary damage.<\/li>\n
- Stabilit\u00e9 thermique et environnementale<\/strong> \u2014 Short-term resistance up to 1000\u00b0C+; long-term operating temperature 90\u2013180\u00b0C (grade dependent). Outstanding resistance to moisture, chemicals, corona, and radiation.<\/li>\n
- Lightweight & Cost-Effective<\/strong> \u2014 Thin, consistent profile (0.08\u20130.14 mm) adds minimal weight while delivering maximum protection for both standard and specialty fire-resistant cable designs.<\/li>\n<\/ul>\n
Stabilit\u00e9 thermique et environnementale<\/strong><\/p>\n
- High Dielectric Strength & Electrical Insulation<\/strong> \u2014 Excellent isolation properties (verified >1.0\u20131.8 kV per layer depending on grade and thickness) ensure reliable performance under both normal and emergency conditions.<\/li>\n
- Unmatched Fire Resistance & Circuit Integrity<\/strong> \u2014 Maintains dielectric strength and prevents conductor exposure even at 750\u20131000\u00b0C, enabling cables to pass IEC 60331 and BS 6387 CWZ tests for 90\u2013180 minutes.<\/li>\n
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