Features and Uses：Both sides of polyester film is coated with F-class adhesive compound on both sides of paper made of polyester fiber composite mechanical;
The composite material has good dielectric properties, higher heat resistance and mechanical strength for the F-class insulation for the common type and humid with a type of motor insulation ,turn to turn insulation and liner insulation. can be used as electrical coil insulation. 

Parameters:

Item	Properties	Unit	Claim
1	Standard thickness	mm	0.15   0.17   0.20   0.25   0.30   0.35
2	Tolerance	mm	±0.020   ±0.025   ±0.030   ±0.030   ±0.030  ±0.035
3	Tensile Strength     Vertica         Not bending                                                     After bending                                 Horizontal   Not bending                                                     After bending	N/10mm	≥80  ≥120  ≥140  ≥190  ≥270  ≥320 ≥80  ≥105  ≥120  ≥170  ≥200  ≥300 ≥80  ≥105  ≥120  ≥170  ≥200  ≥300 ≥70  ≥90  ≥100  ≥130  ≥150  ≥200
4	Elongation Ratio     Vertica        Not bending                                                     After bending                                 Horizontal   Not bending                                                     After bending	%	≥15  ≥15  ≥15  ≥15  —  — ≥10  ≥10  ≥10  ≥10  ≥5  ≥5 ≥15  ≥15  ≥15  ≥15  —  — ≥10  ≥10  ≥10  ≥10  ≥5  ≥5
5	Breakdown voltage	kv	≥6  ≥7  ≥9  ≥12  ≥15  ≥18
6	Normal adhesive properties		No delamination
7	Bond strength 180±2℃ 10min		No delamination、No blister、 No adhesive flow

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