Semi-conductive marine grade water blocking polyester tape, with extra high performance water blocking properties in saline conditions and excellent bedding features.

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Power Cable

  • Proven
    Long Term Stability
  • Excellent
    Gel Stability
  • Extreme Marine
    Grade Swelling

Product Information



  • Water blocking around large size marine cable conductors
  • General water blocking under lead sheet of marine power cables



Black White

Traverse Wound Spool

Availability Yes No

Type of cable

Marine Tapes


Semi Conductive

Typical Properties (T = 23ºC - RH = 50%)

Description GTM423 Test Method
Mass per Unit Area (g/m2) 250 ISO-9073-1
Thickness (mm) 0.68 ISO-9073-2
Tensile Strength (N/cm) 50 ISO-9073-3
Elongation (%) 14 ISO-9073-3
Swelling Speed (mm/1'00'') 4.2* GTEST20*
Swelling Height (mm/3'00'') 5.2/3'00"* GTEST20*
Maximum Processing Temperature (°C) 230 GTEST12*
Maximum Service Temperature (°C) 90 IEC-216
Surface Resistance (Ω/□) 1000 IEC-167
Volume Resistance (MΩ.cm) 0.3 DIN-54345

* Geca-Tapes Test Method

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