Polyimide Film with FEP Coating on Single Side

Thickness:0.0375mm Width:10.5mm Length:2000m ID:50mm OD:280mm

I.  Technological requirement:

1. Appearance: The tape is dry, smooth as well as free from any bubble or impurity, etc.

2. Dimension:

1) Length: The length of every roll of tape is not less than 300 m and the number of sections is no more than 4.

2) Width and allowable deviation of tape is 10mm ±0.5mm, 15mm ±0.5mm, 20mm ±1mm, and 25mm ±1mm. Tape with other width specifications can be offered according to the requirements of customer.

3) Nominal thickness and allowable deviation: thickness range 0.03mm --- 0.10mm; allowable deviation is ±0.005 mm ---±0.006 mm; or supply will be done according to the requirements of customer.

3. Performances of tape shall conform to the stipulations in Table One.

Table one

Number	Index Description	Unit	Index Value
1	Tensile	MPa	≥100
2	Elongation at break	%	≥40
3	Stripping force                              tape to tape                              tape to copper	N/25mm	6.0   6.0
4	Breakdown strength	MV/m	≥100
5	*Surface resistivity	Ω	1.0 x 1012
6	*Volume resistivity	Ω.m	1.0 x 1013
7	*Diecoeffcient		2-3
8	*Tangent of Dielectric loss angle		≤0.004

Polyimide Film with FEP Coating on Single Side