Which plaster is best for casting as many latex masks as possible?
I am wondering which plaster I should get to make as many copies of my giant monster torso mask as possible. I heard of ultra cal and hydro cal but also plastercast which a distributor near me sells. And I read a book by Russ Adams but he said the casting from a ultra cal mild is limited and the mold gets worse every new casting. But I would have many ideas for several masks so I wanted to ask if there’s a special preferred plaster or a sealing thingy to make the mold more durable.
Thank you so much and a happy new year 🥳