We have measured the adhesion between silicone elastomers containing variable quantities of silicone resinand a very thin layer of acrylic adhesive using the JKR test. We showed that the equilibrium was very long to reach in loading for elastomers containing large amount of resin. Taking into account this slow kinetic we have shown that the value of the Dupre work of adhesion was slightly increasing with the concentration of resin. While unloading an increasing hysteresis with time of contact was observed for all the elastomers studied. Eventually we found that adherence after long time of contact was increased beyond a treshold of 20wt% of resin in the elastomer.
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