Goodyear Rubber Products

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SEALING PROPERTIES FOR
                                                    
                                           INERTEX  UHF JOINT SEALANT and
                                            
                                   INERTEX  UHF EZ SEAL INSERTABLE GASKETS
� DIN 3535 Gas Permeability
          This standard provides a means of measuring leakage of a gas through a gasket. This test is designed to
          compare the leakage rates of different products. The apparatus used is considerably more versatile than
          that used in ASTM F37. The sample gasket size can be varied, and much higher internal pressures can
be        used. Normally measurements are made at room temperature.
Results of gas permeability test (DIN 3535 Part 4 Sec. 4.7)
                                  
          3/16" (5mm) INERTEX  UHF Joint Sealant,
          2.76" (70mm) of sealing ring's diameter.
          Temperature = 73�F  3.6� (23�C � 2�) nitrogen gas.
                                                          2
          Clamping Pressure = 4350 psig (30 N / mm ).
                          Internal Pressure                       Gas permeability (ml/min.)
                          232 psig (16 bar)                        0.04 (range 0.02 - 0.05)
                          363 psig (25 bar)                        0.04 (range 0.03 - 0.05)
                          580 psig (40 bar)                        0.06 (range 0.04 - 0.07)
� DIN 52913 Torque Retention
          This test equipment is designed to determine the torque retention capabilities of gasket products, when
          subjected to the compression load and operating temperatures as defined by the test procedures.
          The test consists of applying a predetermined load on the test gasket via a tension screw, then heating
          the gasket/flange assembly to the desired temperature (there is no internal pressure). The standard test
          period is either sixteen (16) hours or one hundred (100) hours. At the end of the required time period, the
          compression load which is left acting on the test gasket, is measured. This allows one to calculate the
          torque retention capabilities of various gasketing products.
          This test differs from the "Hot Compression Test" in that the gasket load is not constant, but is a  function
of the torque retention capability of the product tested.
Results of torque retention test (DIN 52913)
                                  
          3/16" (5mm) INERTEX  UHF Joint Sealant.
          2.56" (65mm) sealing ring's diameter.
                                                        2
          Clamping Pressure = 4350 psig (30N/mm )
          Test period = 16 hours
          Operating temperature = from 73�F (23�C) to 302�F (150�C) and 392�F (200�C).
     Temperature                     Times Tested                     Torque Retention                    Decrease %
     302�F (150�C)               Continuous 16 times                      2751 psi                           37.3%
                                                                     (range 2465-2929)                  (32.6%-43.3%)
     392�F (200�C)               Continuous 12 times                      2717 psi                           37.6%
                                                                     (range 2465-2915)                  (33.0%-43.4%)
� Compressibility - Please refer to chart IV on page 7.
Remarks:
DIN (Deutsches Instut fur Normung)                     German Institute for Standardization
G:\DOCSINER\InertexFiles\ADVERTIZ\REDBOOK\JSTECHR4.DOC 4/26/02
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CALL TOLL FREE IN THE USA 1-866-711-4673

INTERNATIONAL SALES CALL +1-727-342-5086 WE SHIP WORLDWIDE

CALL TOLL FREE
IN THE USA
1-866-711-4673

INTERNATIONAL SALES CALL
+1-727-342-5086
WE SHIP WORLDWIDE