Pouring concrete to silicon mould

Is there any special treatment for puring the mix concretes to silicon moulding to make cast stone? Thanks for the information

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oil

for a releasing agent

no release needed for silicon rubber

You will not need a release agent with silicone rubber molds,but you may need to vibrate after you pour the concrete into the mold.
What type of concrete mix are you using? Have you added any add-mixtures to your mix?

Stanley

Concrete Mix

Dear Stanley & Johnny,

Thanks for the respons, i used cement, sand, and light agregates for my cast stone, but still i can't find the right combination so the textures of the stone can show. Any suggestion please?