Hostaphan® polyester films

Hostaphan® electrical insulating film made of PETP

Hostaphan® is a well-known name which is often used in combination with a thin film which is made of PET (polyethylene terephthalate) since 1950. Hostaphan® is a registered trademark of the company Mitsubishi Polyester Films which provides and sells films in different alternatives, made of PET.

Utilisation areas of Hostaphan:

Hostaphan® is used as intermediate- and cover insulation in transformers, chokes and relay coils.

Furthermore it is used as slot- and phase insulation, as slot closure and slot casing in electro machines-, generators- and magnet construction as well as an insulating layer in electrical devices.

In addition to that Hostaphan is used for the manufacture of adhesive tapes.

We deliver the WN and RN models.

Storage requirements for Hostaphan:
Hostphan® A is storable unlimited under normal conditions (20°C, 50% relevant humidity)

Forms of delivery:

0.019 mm
0.023 mm
0.036 mm
0.050 mm
0.075 mm
0.100 mm
0.125 mm
0.190 mm
0.250 mm
0.300 mm
0.350 mm
0.500 mm

Rolls up to ca. 1000 mm, special width up to 4000 mm possible
Tapes as off 10 mm width, also feathered
Boards 1000 x 900 mm

Products which can be manufactured out of Hostaphan:

Slot insulation
Slot closure
Phase insulations
Coil insulations
End plates
Die-cut parts
Insulating washers
Insulating casings
Flange insulations
Formed parts
Paint box films
Plug insulatings
Battery isolations
Insulating plates
Airbrush outlines

Slidings discs made of Hostaphan

We manufacture many slidings discs of Hostaphan WN and Hostaphan RN for different applications in the industry.

Hostaphan can be used in many applications because of the good heat and cold resistance.

We deliver the following measurements: M3 M4 M5 M6 M8 M10

Other measurements can also be manufactured.

Hostaphan® BHO

At HOSTAPHAN® BHO is a high-quality black film made of polyethylene terephthalate (PET), which is characterized by an extremely high optical density.

A selection from the wealth of possible uses for the black polyester film HOSTAPHAN® BHO sind
Sun and privacy protection applications / blinds
Adhesive tapes
Electrical insulation applications
Building elements


HOSTAPHAN® BHO is a high-class black film made of PET (polyethylene terephthalate) which characterises by its extremely high optical density.

Some examples for the usage of the black polyester film HOSTAPHAN® BHO:

Sun- and screen applications/ Jalousie
Adhesive tapes
Electro insulating applications
Building elements


The black HOSTAPHAN® – BFO which characterizes by its extremely high optical density and its reduced flammability.

Please write us an enquiry if you require more information about the black polyester films HOSTAPHAN® BHO and BFO.

Other brands:

We also deliver brands like:

Melinex, Terphane, Lumirror

Data sheets