Silicone molds actually don't require a mold release, but it will usually extend the life of the mold. You can spray a coat of lacquer paint on the inside of the mold and that will serve as a very good mold release. You can also thin petroleum jelly with naphtha and brush or spray that into a mold (caution, highly flammable!). You'll probably have better luck just not using any mold release at all. You can always dust the inside of the mold with talcum powder to help prevent bubbles, but the powder does not take the place of a mold release.
You can usually get away with waxing a master before molding it if you are using condensation (tin) cured rubber. Addition (platinum) cured rubber might have a problem curing against the wax; it depends on the particular rubber and the wax. Always do a test with platinum rubber if there is any doubt.
Hope this helps a little. You can do a google search for these topics and find all kinds of information.