Al/Zn & Al Metallized Polypropylene/Polyester Film

Type of Margins

According to the situation of free margins,it is divided in following types:

a)Standard one-side margin;

b)One-side margin,the other side is heavy edge;

c)Two surfaces metallized without margins;

d)One surface metallized,having margin in center;

e)Two sides margins;

f)One side margin,strengthen metal spraying.

Remarks:The following six sketches are about cross sections of all kinds of MPPAZ


MPPA&MPPAZ reels should be stored in vacuum.The suggested storing temperature and humidity should be 15℃-32℃ and less then 65% respectively, string time of MPPA&MPPAZ films is half a year following the shipment date under the storage condition described above.


For ordering ,it is represented as follows:

Type-Thickness(um)×Slit width(mm)×Free margin(mm),The customer,additionally,should be specify resistance and roll OD etc.

Thickness of the file

Thickness(um) 4 5 6 7 8 9 10 12 15
Tolerance(%) ±8 ±7

Note:Other thickness are available upon requesting.

Slit width & free margins

Slit width(mm) <25 25~35 35~150
Tolerance(%) ±0.3 ±0.4 ±0.5
Margin(mm) 1.5 2.0 2.5
Tolerance(%) ±0.3 ±0.4 ±0.4

Note:For the film with inside margin,both-side margins and special sizes,please contact us.


For normal DC capacitor:2.0±30% 2.5±30%

For AC capacitor:3.0±30% 7.0±30% 15.0±30%

Note:Other resistance is available by mutual agreement.


Density (g/cm3) 0.91 0.91
Tensile Strength (N/mm2) >100 >100
Modulus of Elasticity (N/mm2) 2300 2300
Elongation at Break (%) >80 MD >60 MD >80 MD >60 MD
Shrinkage (%) 3.5 MD 0.5MD 3.5 MD 0.5MD
Water Absorption (%) <0.1(24h,20℃) <0.1(24h,20℃)
Dielectric Constant 2.2 at 1KHz,20℃ 2.2 at 1KHz,20℃
Dissipation Factor 2 at 1KHz 3 at 1KHz 4 at 1KHz 5 at 1KHz
Insulation Resistance 100,000 at 20℃ 100,000 at 20℃
Breakdown Voltage (VDC/um) >250(4 um up) >300(5 um up) >250(4 um up) >300(5 um up)
Number of Pinholes (PCS/㎡) ≤2(at 100VDC/um) ≤2(at 100VDC/um)

Types of film

According to different base film,metallized film is divided in following types:

a) Al/Zn metallized polyester film:"M-PET"

b) Al/Zn metallized polypropylene film:"M-PP"

c) Al/Zn metallized polycarbonate film:"M-PCHN"


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