ISOSEAL ® P 0713, P 2729

ISOSEAL ® P consists of a polyester-fabric impregnated with a thermosetting epoxy-resin which remains flexible after curing.  ISOSEAL ® P 0713 and ISOSEAL ® P 2729 have a different B-stage grade.   ISOSEAL ® P 2729 shows lower resin flow.  The standard type is ISOSEAL ® P 0713.  The resin in ISOSEAL ® P is softening under temperature and gives a tight and smooth waterproof surface after curing.  ISOSEAL ® P remains flexible after curing and can be formed without damage to the insulation.  ISOSEAL ® P has very good tension and elongation properties and are therefore taping without wrinkles is possible.


ISOSEAL ® P  is mainly used for protecting the overhang part of low and high voltage coils and bars against ambient stress and wherever a flexible waterproof insulation is required.


maximum width 1100 mm

Tapes from 10 mm width upward

ISOSEAL ® P 0713 is supplied interleaved.


Minimum 6 months at 20 °C
Minimum 12 months at 5 °C

Processing Advice

Curing condition: 6 hours at 140 °C or 2 hours at 160 °C


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Product Description

ISOSEAL ®     P 0713 P 2729
Properties Test Method Unit Value Value
Nominal thickness DIN 0863 mm 0.18 ± 0.03 0.18 ± 0.03
Total substance IPV 4 g/m² 235 ± 24 235 ± 24
Tensile strength DIN 53455 N/cm ≥ 100 ≥ 100
Elongation DIN 53455 % ≥ 15 ≥ 15
Breakdown voltage IEC 60243-1 kV ≥ 5 ≥ 5
Dielectric strength (after curing) IEC 60243 kV/mm approx. 25 approx. 25
Shrinkage IPV 22 % approx. 2  
Colour     red-brown red-brown
Thermal class IEC 60216-2   155 (F) 155 (F)

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DISCLAIMER: The technical information contained herein is the result of extensive testing in the manufacturer’s laboratories. In addition any application advice given verbally, in writing or by testing corresponds to the best of our knowledge and belief. Since the use and application of any of our products lies beyond our area of control, it remains the responsibility of the user to verify the product’s suitability for their application.

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