Electrical Insulation Materials Composite Polyester Film

Composite polyester film is a two-layer or three-layer camposite polyester film (Mylar), produced by using adhesive to adhere 2 or 3 layer polyester film together. It is used as tubes of high-voltage and low-voltage coils on cast-resin transformer as well as used for slot , liner ,phase and turn insulation of motors and other electrical appliances.

Product Details

Composite polyester film MM/MMM

Composite polyester film is a two-layer or three-layer camposite polyester film (Mylar), produced by using adhesive to adhere 2 or 3 layer polyester film together.


Product Type: milky white film composite MM/MMM
Material:polyester film
Application:Transformer and motor
Class:Fclass 155°
Feature:As insulating film
Ingredient: Polyethelene terephthalate
Color:Transparent and milky
Width:914mm

Advantages: It has prefect mechanical properties. Electric property and dimensional stability.


Application: It is used as tubes of high-voltage and low-voltage coils on cast-resin transformer as well as used for slot , liner ,phase and turn insulation of motors and other electrical appliances.

Milky Polyester Film MM MMM


Combination10-1014-14-1414-14-14-14
Norminal thicknessmm0.501.11.4
Tolerance±%101010
Norminal grammageg/㎡700±1031480±1031900±133
Pet film thicknessµm250350350
Melting point256256256
BDV(Not bended)KV≥253035
Adhesive property 180℃±2℃,10 min No DELAMINATIOB,BLISTER,OR ADHESIVE FLOWTempersture Index(T.I) 155℃

Company Profile

 Electrical paper manufacturer hecheng

Our serive

a.1 year warranty
b.OEM & ODM are welcome
c.Trial orders are available
d.Sample can be supplied in 7days.
e.Technical supports.
f.Shipping and express will be tracked and reported at any time after sending.

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Welcome to contact Haotai, which is one of best electrical insulation materials composite polyester film manufacturers and suppliers in China, you can also get electrical insulation materials composite polyester film free sample from our factory.

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