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
33

Aramid Fibre,Mineral Fibre and NBR
-Controlled swell properties in oil
-For automotive and chemical industry e.g. IC engine ,hydaulic engines,reiterating
oils and hydrocarbons
-For joints with low sealing pressure e.g. housing valve covers,oil pans etc.


Rolite NAM 40
Aramid Fibre,Mineral Fibre and NBR Elastomers.
-Certain chemicals have been kept at aminimum level,the excess of which might effect the media.
-It contains ahigh amount of mineral fibre which is bio-soluble & thus do not pose any health hazard.
-It does not contains any material which might contribute to bacterial or fungal growth.

Density                                                                                            gm/cm3                              
1.70-2.00
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


> 12
> 9


>
18
> 6
Compressibility                                            ASTM F 36A                           %
6-12
7-15
Recovery                                                      ASTM F 36A                           %
>50
>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)    
                          %




10-30
10-30


10-30
10-30 


15
5
 



<10
<10


<10
<10

<10
<5







Ignition Loss                                               DIN 52911                       %
<35
<36
Seability Against Nitrogen                   DIN 3535                         Cm3/min
<1.0
<1.0
Stress Resistance
      16h 300 c  
                                         DIN 52913                             N/mm2
       16h 175c                                                DIN 52913                            N/mm2

20
30

20
30

Design Info:M Value
                       Y Value      
                                                                    (mpa)             

2.5
22

--
Max. Peak Temp                                                                                                       C
400
400
Max. Continuous Temp                                                                                           C
250
250
Max. Operating Pressure                                                                                      kg/ cm2
90
150
ASTM F104 Line call-out
F71244A9B4E45M5
-

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