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Oil-resistant rubber sheet series
  Produced by blending, rolling and vulcanizing fiber, rubber and filling materials. According to different complex fibers, there are oil-resistant asbestos rubber sheet and oil-resistant asbestos-free rubber sheet. The main ingredient in asbestos series is asbestos-mine fiber. The thermostability is 500℃, and the mechanical strength is better than organic fiber. The main ingredient in asbestos-free series is aramid fiber. The thermostability is around 200℃. Mechanical strength is weaker than asbestos, but compactness is better than asbestos. And it is a kind of environment-friendly sealing material.?
Oil-resistant asbestos-free rubber joint sheet

Item /Symbol

Technical indexes

NA150

NA250

Thickness (mm)

0.5

0.5

Density (g/cm3)

1.6±0.2

1.6±0.2

Horizontal tensile strength (Mpa) ≥

9.0

11

Compressibility ( % )

12±5

12±5

Recovery ( % ) ≥

35

45
Oil-resistance

Immersed in 20# oil for 5 hours at 150℃

Horizontal tensile strength (Mpa)≥

8.0

9.0

Thickness increase( %)≤

23

23

Weight increase( %)≤

--

20
Fuel-resistance

Immersed in 75# fuel oil for 5 hours at 23℃

Tensile strength (Mpa) ≥ 6.0 7.0
Thickness increase( % ) ≤ 22 22
Weight increase( % ) ≤ -- 25

Max temperature (℃)

150 250

Scope of application

Oil, water or gas-medium sealing in all types of asbestos-free internal-combustion engines, chemical pipes, flanges, valves and pumps.

Oil-resistant asbestos rubber joint sheet

Item/Symbol

Technical indexes

NY150

NY250

NY300

NY400

NY510

NY550

NY580

Density (g/cm3)

1.8±0.2

1.7-2.0

Horizontal tensile strength (Mpa) ≥

9.0 11.0

12.7

-- -- -- 20

Compressibility ( %)

12±5

Recovery ( % ) ≥

35 40 50 50 60 60 55
Oil-resistant

Immersed in 20# oil for 5 hours at 150℃

Horizontal tensile strength (Mpa)≥

8.0

9.0

10.8

26.0

10

12

17

Thickness increase ( % )≤ -- 20 15 15 20 20 20
Weight increase ( % )≤ 23 23 23 9 23 23 23
Fuel-resistant

Immersed in 75# fuel oil for 5 hours at 23℃

Horizontal tensile strength (Mpa)≥ 6.0 7.0 7.9 14.7 -- -- --
Thickness increase ( % )≤ -- 25 25 20 -- 16 20
Weight increase ( % )≤ 22 22 22 15 -- 22 22

Max. temperature (℃)

150 250 300 400 510 550 580

Max. pressure (Mpa)

1.5 2.5 3 4 5.5 6 7

Scope of application

Oil, water or gas-medium sealing in all types of asbestos-free internal-combustion engines, chemical pipes, flanges, valves and pumps.