SynTherm® – Insulating Materials Hostaphan®

Hostaphan® is a biaxial oriented Polyethylenterephthalate (PET) film. It can be used at temperatures of -70 °C to 150 °C.

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Application

According to the manufacturer's specifications Hostaphan® is used in class B (130 °C) systems by numerous manufacturers of electric motors. Hostaphan® is used as slot insulation, phase insulation and wedges for motors and generators. Hostaphan® is used as core-, interlayer and final insulation for transformers, chokes and relays.

Standards

UL-approved, file-no. E53895

 

Delivery forms

Total thickness in µm:

19, 23, 36, 50, 75, 100, 125, 190, 250, 300, 350, 500

Hostaphan® is available in tapes as of 6 mm width.

Base

Polyethylenterephthalate

Technical data

Mechanical
Property Unit of measure Type RNK Type RNK Type RNK Type RNK Type RN Type RN Type RN Type RN Type WN Type WN Type WN Type WN Type RN Test method
Nominal thickness μm 12 19 23 36 50 75 100 125 190 250 300 350 500
Tensile strength longitudinal N/mm² 260 260 260 260 195 195 200 200 190 200 190 190 160 ISO 527-1 and ISO 527-3, specimen type 2
Tensile strength transversal N/mm² 260 260 260 280 225 225 220 220 230 200 190 190 170 ISO 527-1 and ISO 527-3 / specimen type 2
Elongation at break longitudinal* % 120 120 120 140 200 200 190 190 200 200 230 230 220 ISO 527-1 and ISO 527-3, specimen type 2
Elongation at break transversal* % 120 120 120 125 140 140 140 140 140 190 200 200 180 ISO 527-1 and ISO 527-3, specimen type 2
Shrinkage (15 min. at 150 °C) longitudinal % 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.9 DIN 40634
Shrinkage (15 min. at 150 °C) transversal % 0.2 0.2 0.2 0.1 0.3 0.3 0.3 0.3 0.8 0.8 0.8 0.8 0.6 DIN 40634
Dielectic strength kV 4.5 6.5 7.5 10 12 16 19 23 30 >30 >30 >30 - DIN 40634