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Coated Films

Lacquered Coated Film

Lacquered Coated Film

Polyester film ideally suited for slot liners, closures and inter phase insulation in electric motors and generators. Characterized by a high degree of safety and reliability.

Ideally developed for slot liners, closures and inter phase in sulations in Electric Motors, Fans, Generators and Transformers & for major Electical & Electronic components.

Polyester Film is also widely used in Cable Wrapping & Copper Insulation, Packaging, Lamination, Stationers, OHP Sheet, Window Packing, FRP Sheets, Stickers, Labels & overall it has got a multipurpose applications & uses.

  • Insulation resistance : The electrical properties are excellent with a very high level of insulation resistance and very low level of moisture absorption. Ideally recommended for slot liners in F.H.P. as well as H.P. ratings in a variety of electrical rotating systems.
  • Toughness : It does not crack or spilt when creased sharply. It is easily formed into "Cuffed" slot liners and closures by semi-automatic machines and runs efficiently in fully automatic forming and inserting machines.
  • Ageing : Accelerated ageing tests at very high temperatures indicated that the life is longer than general grades of polyester film.
  • Chemical Compatibility: It is compatible with most impregnating varnishes, particularly those based on polyester resins of the terephthalote or isophthalate types.
  • Brittleness : It can be used at a temperature of low as -70° C without becoming brittle


Properties

Unit

Test method

Typical values

General

Thickness

Micron (Gauge)

Internal method

36

(144)

50

(200)

75

(300)

125

(500)

190

(760)

250

(1000)

300

(1200)

350

(1400)

Yield

M2/kg

Internal method

19.8

14.3

9.5

5.71

3.76

2.86

2.38

2.04

Density

Gm/cc

ASTM D 1505

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

Water absorption

%

ASTM D 570

0.55

0.55

0.55

0.55

0.55

0.55

0.55

0.55

Oligomer Extraction

%

Gl method

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

Service temp.

ºC

Gl method

-70 to 150

Mechanical

Tensile strength at break MD/TD

Kg/cm2 (kpsi)

ASTM D 882

2000

(28.4)

2000

(28.4)

2000

(28.4)

1900

(27.0)

1900

(27.0)

1900

(27.0)

1800

(25.6)

1700

(24.2)

Elongation at break MD/TD

%

ASTM D 882

125

125

125

130

150

150

160

160

Coefficient of friction

-

ASTM D 882

0.35

0.35

0.35

0.35

0.35

0.35

0.35

0.35

Thermal

Shrinkage @ 150ºC/ 30' MD/TD

%

ASTM D 1204

2/1

2/1

2/1

2/1

2/1

2/1

2/1

2/1

Shrinkage @ 190ºC/ 3' MD/TD

%

ASTM D 1204

255

255

255

255

255

255

255

255

Melting point

ºC

DSC

0.32

0.32

0.32

0.32

0.32

0.32

0.32

0.32

Specific heat @ 25ºC

Cal/g/ºC

-

MD-36 X 10(-6)

TD-36 X 10(-6)

Coeff of thermal Expansion between 20ºC @ 25ºC

1/k/cm/cmºC

-

50

55

60

80

86

93

94

96

Optical

Haze

%

ASTM D 1003

50

55

60

80

86

93

94

96

Electrical








Break down voltage (2” brass electrode)

kv

ASTM D 149

7.5

9.5

12.5

17

20

22

24

26

Surface resistivity

kv

ASTM D 257

10 (12)

Volume Resis

ohm

ASTM D 257

10 (16)

Dielectric constant

Ohm/m

ASTM D 150

2.6-3.7


 
Coated Films

We are a specialized manufacturer, supplier, exporter and distributor of Coated Films. With our expertise in films making, we are producing and offer this range in various thicknesses, length rolls, widths and specifications so as to meet a large number of clients' demands. The Coated Polyester Films we offer are well praised for their splendid finishing, resistance to tear, printability and moisture-proof nature. Our experts keep themselves updated with the dynamics of packaging films industry, which help them in developing the best quality products that stand up to the expectations of customers. You can have Coated Films from us even in customized form by giving samples, drawings or specifications to us. Further, our polyester coated films can be availed by customers at a shoestring budget.