Lifecasting - how much alginate and plaster bandages
Hi everyone. I do apologize for the basic question but I was wondering if you could share your experience with me. I need to lifecast couple of actors which I have done before but this time I need to order materials via the employer before I do the actual lifecasts. Would you be able to tell me approximately how much alginate and plaster bandages will I need for a full head cast, face cast and a hand cast? Thank you for your time.
Face cast would be about half the materials of a full head, and a hand cast will change based on how far up the wrist/arm you go and how large a container you use. Hand casts usually use a lot more alginate since they are a solid container full rather than a layer built up on the subject. You need that thickness in a hand cast to help prevent tearing as you remove your subject's hand.
You also want to make sure you have enough material for a backup casting of each, as sometimes your mix is off, things can tear, etc.
Smooth-On sells their Alja-Safe alginate in 3lb quantities, and 3 of those should be enough for you to have a bit of a safety net, 4 would be even safer, but you would likely end up with extra material. https://shop.smooth-on.com/alja-safe