Mold release question.

[DrStrangelove]

I have an Ultracal 30 mold and I am planning on making a silicone prosthetic casting from it using Smoothe-on Dragon Skin FX Pro and was wondering what the best mold release would be to use on it without the silicone bonding to the concrete of the mold or lifecast itself.

 

[udog]

You shouldn´t need a release for platinum silicone (Dg skin) and UC30. These silicones are "self release", they don´t bond to anything but themselves (unless there is a lot of silica in the other part, but not the case). Unless you got a very harsh texture or pores etc. that would need some release to aid or ease demolding you should do ok without sealing or release. It won´t stick.
This is for plain silicone, encapsulated prosthetics (baldies, glatzan etc.) do need it.

 

[DrStrangelove]

You shouldn´t need a release for platinum silicone (Dg skin) and UC30. These silicones are "self release", they don´t bond to anything but themselves (unless there is a lot of silica in the other part, but not the case). Unless you got a very harsh texture or pores etc. that would need some release to aid or ease demolding you should do ok without sealing or release. It won´t stick.
This is for plain silicone, encapsulated prosthetics (baldies, glatzan etc.) do need it.

It has a lot of wrinkles to the sculpture. Would that be an issue?

 

[udog]

It has a lot of wrinkles to the sculpture. Would that be an issue?

No, I don´t think so. Anyway, platinum silicone won´t bond to UC30.