Non-Asbestos Products
 
Non Asbestos Gasket Materials

General Data
Standard Sheet Size  
1500*2000 mm,1500*4000 mm,1500*1500mm,
1500*4500 mm,1500*3000 mm,2000*3000 mm
Thickness         
0.25 mm to 3.00 mm(For Non-Metallic Range),
0.80 mm to 3.00 mm(For Metallic Range)
Tolerances   Thickness
<1 mm = + 0.10 mm          Length+50 mm
>1 mm = + 0.10 %           Width+50 mm
All information and recommendations given in this brochure are correct to the best of our knowledge. Since conditions of use are beyond our control,the information provided can only serve as a guideline.Users must satisfy themselves that products are suitable for the intended processes and uses.We reserve the right to change product design and properties without notice.
Should you have any doubts about choice of gasket material,please refer to us.Our Engineering Cell will be happy to assist you.
Graphite Coating & antistick coasting are available on request.
Properties Applicable for 2.0 mm thick material.
Rolite NAM 39

Aramid Fibre,Mineral Fibre,High Quality NBR &Organic Fibre.
- Water/Oil resistant
- For light to medium loading
-Suitable for low operating pressure,e.g.transformers, compressors and oil pans in internal combustion engines.
Rolite NAM 37
Aramid Fibre,Mineral Fibre NBR
- Water/Oil resistant
- For light to medium loading
-For low operating pressure,e.g.transformers, compressors and valve covers and oil pans in IC engines.
Density                                                                                            gm/cm3                              
1.50-1.90
1.70-2.00

Tensile Strength
a)Acc tp ASTM F 152(Across Grain)             N/mm2
b)Acc to DIN 52910 (Across Grain)              N/mm2


>7
> 5


> 8
> 5
Compressibility                                            ASTM F 36A                           %
> 7-15
> 7-15
Recovery                                                      ASTM F 36A                           %
>40
>50

Fluid Absorption                                            ASTM F 146                         %
         In ASTM Oil NO.3                        AST M F 146                           %
               Increase in Mass
                   Increase in Thickness
         In Fuel B                                               ASTM F 146                           %
            Increase in Mass
                  Increase in Thickness
        In Water / Antifreeze                  ASTM F 146                              %
            Increase in Mass
                  Increase in Thickness
         In Acid (Change in Tensile Strength)
            96% H2SO4+ Acid (49 hrs at 23 c)                                     %
                 95% HNO3 Acid (48 hrs at 23 c)                              %



<15
<10
<10
<10 

<15
<5 



< 15
< 10
<10
<10

<15
<5

 
Ignition Loss                                               DIN 52911                       %
<40
<35
Seability Against Nitrogen                   DIN 3535                         Cm3/min
  
<1.0
Stress Resistance
       16h 300 c                                           DIN 52913                             N/mm2
       16h 175c                                                DIN 52913                            N/mm2
--
--

20
 28

Design Info:M Value
                       Y Value                                                                          (mpa)             

2.5
25
2.5
25
Max. Peak Temp                                                                                                       C
350
400
Max. Continuous Temp                                                                                           C
250
250
Max. Operating Pressure                                                                                      kg/ cm2
70
100
ASTM F104 Line call-out
F712122A9B5E12M4
F712122A9B4E12M4

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