6. Drown the Part
RTV can be added in layers, mix up an amount you can handle
         (degassing requires a container 2-3 times larger than the liquid material.
   RTV can be added in layers, mix up an amount you can handle (degassing requires a container 2-3 times larger than the liquid material.  I degas again after pouring the rubber, to pull surface bubbles and undercut air out.  If your parts is hollow, make a vent to allow the air out, so it won't split the part or cause it to float out of place, expect rubber to get sucked into every nook and cranny.