Make your own severed arm out of expanding foam
Things You Will Need
1) An Arm
2) Liquid Latex
5) Hair dryer
7)
Grease
10) MDF
Step 1
Wash your arm and hand then shave all hair OFF (trust me you must do this Don't leave any hair)
Step 2
Put some old news paper on the floor
Pour the liquid latex in to a shallow container
Plug in the hair dryer
Step 3
Ok its time to start painting your
arm and hand with the liquid latex
Take your time and let it dry
You can speed up drying time by using a hair dryer
After 6 thin coats you can mix some of the thickener to the liquid latex
You have left in your container
You will need to do a total of 15 to 20 coats the more the better as it will help
Step 4
After the latex has dried rub Talcum powder all over the latex this will stop it
sticking to its self
This will make it easier to get it off your arm
When you finely get it your arm out of the mould it will end up in side out
This is a good thing as you’ll need to rub a releasing agent all over the inside of mould (I used grease)
This will stop the expanding foam sticking to the mould now turn the mould the Wright way round
And fill it with water then empty it
This will help the foam cure quicker
Now fold the arm part of the mould over the hand
So you can get the straw from the Can down the fingers
Remember to put paper down to protect the work area
Now start sparing the expanding foam in to the mould filling each finger
when you get to the hand spray some water over the foam you have just sprayed
in to the mould
Now unfold the arm part of the mould and fill half way and leave for two hours (longer if needed)
Now to get your new arm out of this mould it is necessary
To cut the latex mould I cut mine down the inside of the arm so you won’t see a line in future moulds
Step 5
Now its time to fold the arm part of the mould over the hand
Now you can start spraying the foam in to the mould
when you have filled the hand then unfold the arm and fill half way
And leave it to dry for 2 hours before taking your new arm out
I found it easier to cut along the inside of the mould to get your new foam arm out
This is what you should have at the end
If your happy with a blotted copy of your arm then go now and paint your arm have fun
If you’re more picky then read on
As I said you’ll end up with a blotted arm unless you make some think to help keep the shape (I’m one of the picky ones)
You may not want to do it the way I did that’s up to you
I just have to tell you the way I did it as it was another one of those times when doh is really the only thing you can say
I started by making a box (out of scarp MDF) big enough
To fit the mould and still have an inch gap all round it
I then greased the inside of the box
Then I put the mould on my arm then I greased the out side
Of the mould
I then filled the box half way with expanding foam
And then put my arm in to the box and just waited for
The foam to cure 1 hour nope 2 hours later nope 3 hours 4 hours 5 hours later most of it has cured so I try to get the box off my arm humm the foam has stuck to the box ok I can fix this where’s my saw muhaha
I got the box off the foam all that’s left now is to get the foam of
My arm (now I no why people make this kind of mould in two half’s just wish I had remembered before doing it this way
As its taken 5 hours to dry I’m not going to waste this mould
So I got a kitchen knife and cut around my wrist then up the in & out side of my arm so far so good
Now for the hand this was a bit more tricky but I done it in the end
What I haven’t mentioned was the I super glued I used to glue
hole that was in the thumb
Some of the glue had gone inside of the mould so when I put my Hand in
The glue stuck my thumb to the mould I didn’t find this out until I tried to get my hand out OUCH
And expanding foam gets hot as it cures
This is what my hand looked like after all this When I had finished ungluing my thumb I filled the mould as I did before but this time I clamped the outer mould around the inner mould and waited 2 hours when I pulled the moulds apart
I was left with a great copy of my arm
Take A Look at the arms I Made CLICK HERE
