Prosthetic makeup is used today mainly to create wounds, change the shape of the body/face or to create a completely new face which is where mold making comes into action. The first procedure of mold making is casting the body part in which you wish to use prosthetic makeup. Below is a step by step providing images and instructions on how to complete a face cast:
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| Image one |
WHAT YOU WILL NEED:
- Bald cap/ swimming cap - Small hammer
- Latex gloves - Overalls
- Scissors - Rubber mallet
- Mod rock
- Bin bags/cloak
- Alginate
- Cold water
- Room temperature water
- Plastic bucket x3
- Vaseline
- Chisel
- Sandpaper
- Plaster
- Burlap
- Rasp
Step 1: Dress yourself in the overalls and put on two pairs or latex gloves per hand.
Step 2: Begin to set up the equipment, measure out 1:3 ratio of alginate to water having 500g of alginate and 1500g of cold water. These must be in separate buckets to start with. To cast the face use a three minute alginate and on a larger body part use a 9 minute alginate. This is the length of time it will take for the product to set. Also prepare yourself with a bucket of room temperature water.
Step 3: Cut the mod rock in to pieces size depending on the body part you are casting. For the face cut into pieces 10-20cms long and enough to layer the body part four times. Leave this on the work space for now.
Step 4: Prepare your model by covering any body part which is not being casted. Cover the hair with the bald/swimming cap (Image one) the bin bags can be used to cover the rest of the body. Add Vaseline to any body part showing hair which is getting casted for example the eyebrows.
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| Image two |
Step 5: Pour the cold water in to the bucket of alginate and mix quickly until the product is a paste like texture. (Image two)
Step 6: With assistance apply the alginate as quickly as possible to the top of the models head the alginate will then pour down the face. Scoop the alginate from the chin and continue to apply to the face filling in gaps to avoid air bubbles and clearing the nose passage way. Do this before the alginate sets within three minutes. (Image three)
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| Image three |
Step 7: Wait for the alginate to set.
Step 8: Once the alginate has set, soak and drain the mod rock bit by bit in the room temperature water, apply to the face and spread with hands making it smooth. Layer it four times.
Step 9: When the mod rock is dry and hard begin to slowly take the cast off the model. If any part of the cast gets stuck to the skin use Pro clean to help the process along. (Image four)
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| Image four |
Step 10: Remove the first pair of gloves from your hands and help your model get all of the mod rock and alginate off the skin before moving on with the cast.
Step 11: Mix a small amount of alginate with water and hold it in your hand. Place the nose area of the cast over the alginate to fill in the nostrils. Do not allow the alginate to flow over the nostrils as it may change the shape of the nose.
Step 12: Get the final bucket and fill it with cold water and the add plaster with a ratio of 1:2.5 water to plaster then mix this together to make a paste.
Step 13: Using your hands (with gloves on) fill the cast with the plaster slowly, a small amount at a time and spread it around the cast avoiding air bubbles.
Step 14: Add burlap into the plaster placing it on the inside of the cast avoiding any bits that may stick out. Then add the remainder of the plaster and continue spreading it until it is extremely thick.
Step 15: Leave it to set.
Step 16: Once the plaster has set and is ready to be parted from the alginate, use the rubber mallet to tap the face cast loose allowing the mod rock to break away.
Step 17: Next use a small hammer and chisel to knock off any unwanted bits still attached to the cast.
Step 18: Take the rasp to file the edges and the sand paper to smooth over the rest of the cast until you are pleased with what is left. (Image five)
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| Image five |
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