Recently, I’ve taken up a project to make a resin breastplate. Basically, I’m making a mold of a friends torso, and then casting that in plaster. I was wondering if there was a way I could apply the resin to the plaster torso so that it doesn’t drip off. Is there any resin I can use that I can apply in thin layers? How strong will it be?
I’m afraid plaster isn’t going to work well for your purpose. It isn’t flexible enough to release the resin.
Instead, I would recommend you work with the team at Smooth On. http://www.smooth-on.com. They have products specifically designed for this (costumes, cosplay, etc.). I am thinking to use one of their silicone products to brush onto your friend as the mold, then cast the resin with that.