Item

NXB200

NXB300

NXB350

NNY150

NNY250

NNY300

NNY350

Tensile strength MPa≥

5.0

7.0

11.0

8.0

10.0

12.0

15.0

Aging Coefficient ≥

0.9

Density g/cm³

1.6 — 2.0

1.6 — 1.8

Compressibility %

12 ± 7

Rebound degree

35

40

45

40

45

50

50

Pliability

No Crack

Stress-relaxation≤

45

45

45

40

40

30

30

Oil sealing
With the temperature
of 15°Cto 30°C,.75 aviation gasoline for 30 min

10 MPa pressure for 30 min
No leaking

12 MPa pressure for 30 min
No leaking

15MPa pressure for 30 min
No leaking

16 MPa pressure for 30 min
No leaking

With the temperature of 150±2°C,dipped in No.20 aviation oil for 5h,then taken out and laid for 5min.

Tensile strength-reducing %

40

30

25

25

Thickness-increasing %≤

5—20

5—20

5—18

5—18

Appearance change

No bubble

With the temperature
of 15 to 30 °C,dipped in No.75 aviation oil for 5h,then taken out and laid for 5min.

Tensile strength MPa ≥

5

6

8

10

Thickness-increasing %

5—25

5—25

5—20

5—20

Pliability

No Crack