Page 174 - Handbook of Plastics Technologies
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THERMOSETS


                             3.44                        CHAPTER 3




































                                  FIGURE 3.38 RTV silicone chemistry.


                                              TABLE 3.41  Properties of Cured Methoxy
                                              RTV Silicone

                                               Working time      30 min
                                               Tack-free time    2–3 hr
                                               Cure time (1/8 in thick)  24 hr
                                               Shore A hardness  28
                                               Tensile strength  150 psi
                                               Elongation        550%
                                               Adhesion: lap shear  100 psi
                                               Adhesion: peel    20 lb/in
                                                                      14
                                               Volume resistivity  4.7 × 10  Ω-cm
                                               Dielectric constant  3.6
                                               Dissipation factor  0.002






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