I used alginate for two sets of arms for mold-over casts and a torso a number of years ago. I was So glad I bought extra, as I was used to silicone and alginate is just as fragile as you might think. Definitely wasn't a fan of the 'filled' type with the fibers, even though it was probably the one that held together better after the skinning time (I ruined the first one in arm removal, tore the finger section). I ended up having the best outcome by mixing in the same vessel that I used to contain the alginate, a very large PVC tube capped on the bottom, then poured casting plaster in the molds for the arms; those came out fine with a little finish work, though tearing the alginate off felt great vs the struggles we had in getting clean finger secitons. The torso, ehh, our subject was a bodybuilder friend who was not so keen on the jelly-like and cooling effect of having a thick section mold on him. We ended up finding a large mannequin, sculpted clay onto it and molded that. Still have the torso, ironically. We bulked it up with pictoral references and added a carbon weave top texture which came out magnificently awesome. 😉
I always get a kick out of watching these. I keep telling myself I'm gonna do some of this molding work. I used to make suction cups at work for picking up bars of soap. I remember heating those though even though it was a 2 part material.
It looks quite hard getting the silicone hand out? Would it be possible to make a glove hand ie hollow? Or would it likely rip whilst trying to pull it out?
For that you would need to make a core mold. Not something you could do in an alginate mold. I suppose you could "slosh" a 5110F around until it set, but it would be very difficult to ensure a uniform thickness.
I'm a trauma actor in the Nederlands and have some questions.... Does this stuff can handle some mistreatment ?? Does it last ??? I mean i need to make it once and be able to use the limb multiple times for years. I need it to be realistic. I need it to be able to withstand water, dirt, oils etc etc. Can it withstand a tourniquet? I would like to add a skeleton and perhaps some veins (riped off limb). It's so hard to find the right stuff due to the usage...
5110 and 5130 are both tough, tear resistant silicones. That said, a lot depends on how the part is made and used. We don't sell outside the US, but you can see if there's a BJB distributor close to you and they can direct you to the products you need.
Maybe. Alginate is organic and starts to break down pretty fast, so don't expect it to last. Damp paper towels inside the mold can extend the life a little bit, but you have to use the mold fast!!!
Is there a same type of liquid mold that can be applied by brush on a large model to make a mold? Instead of filling up a large case to hold it? I want to make a 4ft mold.
How would one make an inverted mold of a prop hand? So that I could make a proper hand of my wife’s right hand to serve as a left hand. As she does not ah e a left hand.
The easiest way to make the missing hand would be to sculpt one or mold one from a similar subject. Reversing a mold just results ina very distorted cast :/
I used alginate for two sets of arms for mold-over casts and a torso a number of years ago. I was So glad I bought extra, as I was used to silicone and alginate is just as fragile as you might think. Definitely wasn't a fan of the 'filled' type with the fibers, even though it was probably the one that held together better after the skinning time (I ruined the first one in arm removal, tore the finger section). I ended up having the best outcome by mixing in the same vessel that I used to contain the alginate, a very large PVC tube capped on the bottom, then poured casting plaster in the molds for the arms; those came out fine with a little finish work, though tearing the alginate off felt great vs the struggles we had in getting clean finger secitons.
The torso, ehh, our subject was a bodybuilder friend who was not so keen on the jelly-like and cooling effect of having a thick section mold on him. We ended up finding a large mannequin, sculpted clay onto it and molded that. Still have the torso, ironically. We bulked it up with pictoral references and added a carbon weave top texture which came out magnificently awesome. 😉
Glad it worked!!
I always get a kick out of watching these. I keep telling myself I'm gonna do some of this molding work. I used to make suction cups at work for picking up bars of soap. I remember heating those though even though it was a 2 part material.
Very cool!
You R the "Silicone Whisperer" Thank you. Cheers from So.Ca.USA 3rd House On the Left 🏡
“Silicone whisperer” lol! Thanks!
Great job🎉🎉🎉🎉🎉🎉
Thank you 🤗
i want to buy from europe this silicone, any option to deliver here?
It looks quite hard getting the silicone hand out? Would it be possible to make a glove hand ie hollow? Or would it likely rip whilst trying to pull it out?
There is a fair amount of suction on a mold like this.
What if I want to cast a head and neck? How much silicone do I need?
I would recommend visiting the resources section of our video library. There's a lot of steps to that and a lot of different ways to approach that.
Would have been nice to see different skin tones that are possible rather than just the same one 4 times. Good explanation though.
Check out some of our other videos for more info on pigmenting/skin tones, etc..
how can a hollow hand can be made ? like a gloves with thikness of 1 or 2 mm thikness
You mean a shell like a glove?
For that you would need to make a core mold. Not something you could do in an alginate mold. I suppose you could "slosh" a 5110F around until it set, but it would be very difficult to ensure a uniform thickness.
I'm a trauma actor in the Nederlands and have some questions....
Does this stuff can handle some mistreatment ??
Does it last ???
I mean i need to make it once and be able to use the limb multiple times for years.
I need it to be realistic.
I need it to be able to withstand water, dirt, oils etc etc.
Can it withstand a tourniquet?
I would like to add a skeleton and perhaps some veins (riped off limb).
It's so hard to find the right stuff due to the usage...
5110 and 5130 are both tough, tear resistant silicones. That said, a lot depends on how the part is made and used. We don't sell outside the US, but you can see if there's a BJB distributor close to you and they can direct you to the products you need.
Would covering the tube with cling wrap between casting help the alginate last a bit longer?
Maybe. Alginate is organic and starts to break down pretty fast, so don't expect it to last. Damp paper towels inside the mold can extend the life a little bit, but you have to use the mold fast!!!
Can you mold the front side of the hand without the full back hand?
That is up to you and your moldmaking/lifecasting skills!
GREAT🎉🎉🎉🎉🎉🎉
Thanks!
Por qué no se ha producido inhibición al mezclar la silicona con el alginato? Habéis esperado un poco para que el molde pierda humedad? Gracias
5110F is not inhibited by alginate or moisture.
@@brickintheyard 😍😍😍 a lot of thanks
I'm dumb maybe...why would I want to make impressions of human body parts? A hand for my fireplace maybe, but give me more. Thanks.
Lots of reasons: Medical simulators, film props, anatomy reference, prosthetic work, tattoo practice, etc. etc.
Is there a same type of liquid mold that can be applied by brush on a large model to make a mold? Instead of filling up a large case to hold it?
I want to make a 4ft mold.
That would be a "Brush-on" mold. czcams.com/video/hWGlH-UZ6lI/video.html
How would one make an inverted mold of a prop hand? So that I could make a proper hand of my wife’s right hand to serve as a left hand.
As she does not ah e a left hand.
The easiest way to make the missing hand would be to sculpt one or mold one from a similar subject. Reversing a mold just results ina very distorted cast :/