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Phlogopite Mica Tape

Phlogopite mica tape for fire-resistant cable is made of high quality phlogopite mica paper as the base material, with alkali-free glass fibre cloth or polymer film (e.g. PE) as the reinforcing material on one or both sides. The final product is obtained by bonding with silicone resin, followed by high temperature baking, drying and slitting. The mica tape is mainly used between the core and the sheath of fire-resistant cables to perform the function of fire-resistant insulation.


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  • Types

  • According to reinforcing material, R-5461-P series of Mica Tape can be divided into:
    R-5461-P-GS Glass Backed Phlogopite Mica Tape;
    R-5461-P-GD Phlogopite Mica Tape with Glass on Both Sides;
    R-5461-P-GFD Phlogopite Mica Tape with Glass and Film;
    R-5461-P-FS Film Backed Phlogopite Mica Tape.

    Note: Meaning of product code;
    R-5461: Rongtai product serial number;
    P: Phlogopite;
    GS: Glass on single side;
    GD: Glass on both sides;
    GFD:Glass and Film on each side;
    FS: Film on single side

  • Availability

  • Thickness: 0.08mm-0.20mm;
    Width: 4.5mm-1000mm;
    Length: 500m, 1000m, 2000m;
    Standard cores: 52mm, 54mm, 76mm, 120mm.

  • Properties

  • Excellent high temperature resistance and insulation properties: R-5461-P phlogopite mica tape will not break down within 90 minutes at 750-850°C and 600-1000V;
    Stable chemical properties: Excellent resistance to acid and alkali, aging resistance;
    Excellent environmental performance: No toxic components, no toxic gas under high temperature;
    Excellent mechanical properties: Good tensile strength and good bending and flexibility, high tensile strength when wrapping wire and cable at high speed;
    Good appearance: Smooth and flat surface, dry and non-adhesive.

  • Packaging

  • Cardboard boxes, wooden boxes.

  • Storage

  • In dry environment at room temperature, the storage period is at least 1 year.

  • Applications

  • Oil platforms, multi-storey buildings, power stations, industrial plants, tunnels, computer centres, aerospace centres, telecommunication centres, ships, military installations, etc.

  • Performance Parameter

  • Item Unit TYPE : R-5461-P-GS 
    0.08mm0.10mm0.11mm0.12mm0.13mm0.14mm0.15mm
    Appearance       No alien material, No split, scar &hole, No broken folded 
    Length m500, 1000, 2000
    Thickness mm0.08±0.0150.10±0.0150.11±0.0150.12±0.0150.13±0.0150.14±0.0150.15±0.015
    Weightof tape g/m2110±10135±10145±10165±15180±15205±15215±15
    MicaContent%>60≥60>65>65>70≥70>70
    BinderContent%13±313±313±313±313±313±313±3
    BreakdownVoltagekV>1.0≥1.1>1.3>1.5>1.7≥1.8>2.0
    TensileStrengthN/15mm≥150≥160≥180≥200≥200≥200≥200
    FireGrades℃ 750 ℃ - -850 ℃,IEC331

    Item Unit TYPE : R-5461-P-FS
    0.10mm0.14mm
    Appearance       No alien material, No split, scar &hole, No broken folded 
    Length m500, 1000, 2000
    Thickness mm0.10±0.0150.14±0.015
    Weightof tape g/m2159±10202±10
    MicaContentg/m2120±5160±5
    BinderContentg/m214±317±3
    BreakdownVoltagekV> 5.5> 5.5
    TensileStrengthN/15mm>100>100
    FireGrades℃ 750 ℃-850 ℃,IEC60331

    Item Unit TYPE  : R-5461-P-GD
    0.14mm0.16mm0.20mm
    Appearance       No alien material, No split, scar &hole, No broken folded 
    Length m500, 1000, 2000
    Thickness mm0.14±0.020.16±0.020.20±0.02
    Weightof tape g/m2194±12228±13260±14
    MicaContentg/m2120±5150±5180±5
    BinderContentg/m228±332±434±5
    BreakdownVoltagekV>1.5>1.8>2.5
    TensileStrengthN/15mm>120>120>120
    FireGrades℃ 750 ℃-850 ℃,IEC60331

    Item Unit TYPE  : R-5461-P-GFD
    0.12mm0.14mm0.16mm
    Appearance       No alien material, No split, scar &hole, No broken folded 
    Length m500, 1000, 2000
    Thickness mm0.12±0.020.14±0.020.16±0.02
    Weightof tape g/m2179±13216±13221±13
    MicaContentg/m2120± 5145±5160±5
    GlassContentg/m223±228±223±2
    FilmContentg/m218±323±318±3
    BinderContentg/m218±320±320±3
    BreakdownVoltagekV>3.5>3.5>3.5
    TensileStrengthN/15mm>120>120>120
    FireGrades℃ 750 ℃-850 ℃,IEC60331