Can you cast a PU resin life cast and make a silicone mask?

[brucebatman]

Hi i have a half life cast in Polyurethane resin and wanted to know what materials i would need to cast it and make a silicone half mask, how would i achieve this step by step?.
any info would be appreciated.
thanks

 

[brucebatman]

Anyone?

 

[doppelganger]

Algenate and plaster bandage would be the easiest way. Just algenate would work fine too if you stick the mask to the bottom of a box and pour the algenate over it. Plenty of step by step videos on youtube.

 

[brucebatman]

Thanks for the reply dude will go look now.

 

[udog]

Besides the materials you use, take in account you need some kind of core (a positive face in this case) to get the interior shape right (so that it fits correctly on a face) wjhen you cast the silicone.