Fire Protection and Insulation for Building Cables
Mica tapes for circuit integrity, PET film, CPR-compliant flame-retardant tape and water-blocking for building-cable manufacturers
Mica Tapes for Circuit Integrity
Safety cables in buildings — evacuation, alarms, sprinklers, lifts — must keep their function during a fire per IEC 60331 and EN 50200. OR64 mica tapes make it possible to build cables that meet these requirements. Halogen-free and free of toxic gases, compliant with the most demanding CPR Euroclasses.
Muscovite Mica FR80M28
Standard grade IEC 60331, EN 50200. Maximum dielectric strength. Halogen-free.
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Phlogopite Mica (FR-P series)
Higher thermal resistance up to 1000°C. Greater flexibility for small cross-sections. Halogen-free.
View datasheet| Reference | Thickness | Mica content | Breakdown |
|---|---|---|---|
| FR90P28 | 0.100 ±0.02 mm | 90 ±5 g/m² | ≥1.0 kV/capa |
| FR120P28 | 0.120 ±0.02 mm | 125 ±5 g/m² | ≥1.2 kV/capa |
| FR160P28 | 0.150 ±0.02 mm | 160 ±5 g/m² | ≥1.5 kV/capa |
CPR Flame-Retardant Tape
Euroclass compliance without mica
For cases where circuit integrity is not required but CPR compliance is — smoke emission and flame propagation. Non-woven polyester base with retardant elements, halogen-free. Contributes to Cca and Dca CPR Euroclasses.
Insulation and Separation
PET film and non-woven polyester
PET film provides dielectric insulation between layers (up to 16.9 kV). Non-woven polyester acts as separator, eases stripping and improves extrusion.
Moisture Protection
Water-blocking tapes for buried conduits
Cables in buried conduits or damp areas require protection against water ingress. Water-blocking tapes block the longitudinal advance of water when an insulation fault occurs.
Reference standards
OR64 materials enable the cable manufacturer to build products that meet the main fire-safety standards in building construction.
| Normativa | Ámbito | Producto OR64 |
|---|---|---|
| CPR (EU 305/2011) | Reaction to fire, Euroclasses | Mica, flame-retardant tape |
| IEC 60331 | Circuit integrity under fire | Muscovite/phlogopite mica |
| EN 50200 | Cable fire resistance | Muscovite/phlogopite mica |
| UNE 23727 | Reaction to fire (Spain) | Mica-containing cables |
The Construction Products Regulation (CPR) classifies cables according to their fire behaviour in Euroclasses.
Mica Taping Service
OR64's in-house conductor mica-taping service. Five vertical double-head lines with 80 km/day capacity. Single or double-layer taping per standard. OR64 material or toll processing on customer conductor.
Slitting
Width up to 1200 mm · ±0.50 mm
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Spooling
OD up to 300 mm · TWS, STS
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Mica taping
5 lines · 80 km/day
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and In-House Taping Service
Permanent stock in Barcelona: 100 t/year of mica, 500 t of polyester. Taping service with 80 km/day capacity. No reliance on 8-12 week imports. No minimum order. ISO 9001 certification and full traceability.
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Technical
or commercial enquiry
For a mica quote: specify type (muscovite/phlogopite), reference, width, format (pad/spool), volume. For taping service: specify conductor cross-section, target standard, estimated volume.