EVAL™ Properties / Permeating Gas

Permeating Gas

The permeability depends on the nature of the permeating gas (size, polarity, solubility, etc.).
EVAL™ resins have very good barrier properties against the permeation of oxygen, but also of other gases, such as helium, carbon-dioxide and nitrogen.

Gas Transmission Rates at 0% RH, cc.20µm/m².day.atm

FILMS

H2
20°C

N2
25°C

CO2
25°C

He
25°C

Ar
35°C

Ar
50°C

Kr
35°C

Kr
50°C

EVAL™ F101B

30*

0.017

0.81

160

N.D.

0.5

N.D.

0.4

EVAL™ E105B

200

0.13

7.1

410

1.6

7.0

N.D.

1.8

Oriented PA-6

 

12

205

2000

 

 

 

 

Cast PA-6

 

 

 

 

60

150

23

68

PET

 

8

110

3100

 

 

 

 

Oriented PP

10000

730

9100

-

8100

28000

6900

23000

LDPE

 

3100

42000

28000

19000

46000

25000

74000

*F171B