POLYPTOPYLENE FILMS

 

 

DESCRIPTION

Polypropylene or PP is a low-cost thermoplastic of high clarity, high gloss and good tensile strength. PP can be metallized which results in improved gas barrier properties for demanding applications where long product shelf life is important. 
 

 

APPLICATION

PP film used as carrier film for SMC process carrying the paste and glass to form into sheet. The film also acts to prevent chemical evaporation to preserve the SMC.

 

 

SPECIFICATION

 

Item

Method

Unit

HPS

Thickness

–

um

40

Haze

ASTM D1003

%

20

Gloss (45°)

ASTM D2457

%

46

COF(Dynamic)

ASTM D1894

Tan θ

0.98

Tensile Strength

(Yield)

ASTM D638

kgf/㎠

MD

260

TD

260

Tensile Strength

(Break)

ASTM D638

kgf/㎠

MD

380

TD

250

Tensile Modulus

ASTM D638

kgf/㎠

 

MD

11,500

TD

11,000

Elongation

ASTM D638

%

MD

550

TD

10

 

 

 

APPLICATION ON SMC PROCESS

 

 

METALLIZED PET FILM

DESCRIPTION

Metallized films are polymer films coated with a thin layer of metal, usually aluminium. Metallized films are widely used for food & industrial packaging as preservative protector to prevent evaporation.

APPLICATION

Metallized PET film is used in packing of SMC. A layer of metallized PET film is lay on the SMC container covering from bottom, side to top section.

SPECIFICATION

Properties

Unit

Typical Values

Test Method

Average Thickness

um

12

Manufacturer

Tensile Strength

MD

Kg/mm²

 

26

ASTM D-882

TD

27

Elongation at Break

MD

%

135

ASTM D-882

TD

140

F-5 Value

MD

Kg/mm²

 

11

ASTM D-882

TD

10

Heat Shrinkage

MD

%

4.5

ASTM D-2305

(200⁰C, 10min)

TD

0.0

Optical Density

–

2.2

–

 

 

APPLICATION ON SMC PROCESS

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