Silicone has been one of those prosthetics materials that I have been dying to try out, as you all know from previous posts I am saving up for a sfx prosthetics course but I'm determined to continue to experiment and challenge myself further in preparation.
The reason why am so interested in silicon is because its a material which closely mimics skin, if the prosthetic is created properly. Out of all the prosthetic materials (that I know of) its is the most realistic for skin's translucency and therefore is used often to create skin effects, casualty effects, ageing etc.
When I went to IMATS this year I was focused on purchasing the products, equipment for creating silicone prosthetic pieces; not massive full face piece just small casualty style pieces, start small and work up. I was delighted when I found Form X's booth, they had put together a kit for creating silicone pieces which contained everything for sculpting (minus the tools), creating the moulds and creating the pieces.
The kit contained; Mould Star parts A and B for creating the mould, Ecoflex parts A and B for creating the silicone, clay, form cap, silicone pigment tint, red flock and a ickle tub of vaseline. Everything needed for creating a silicone prosthetic.
The first step in this endeavour is to create what ever it is you want to turn in to a prosthetic. As usual I came up with a million and one different ideas...just to test it out!
I though casualty effects would be the best effect to create to test out the realism of the product as well as help me improve my realism with these sort of effects, it also allows me to play with my Skin Illustrator palettes.
So here are the two sculpts for the moulds, I made a cut (above) and torn skin (below) effect. Pretty basic but remember this is the first time I've ever done this so I wanted to build up my skills first.
The next step is to prepare the Mould Star which will be used to create the moulds. Its important to measure equal parts of A and B in order to ensure that the moulds set properly. This can be done on weighing scales (make sure you reset the weight when you put your container on the scales) or use measuring cups, which is what I did.
Make sure that you create a barrier around your sculptures, this needs to be pretty secure to make sure the Mould Star doesn't run out. I used card board and strong tape which I attached to my tile board.
What you need to remember at this stage is that to avoid air bubbles you need to pour the mixture from a height, obviously take care not to pour it all over the place!!
I'd say it took about 45 minutes for the mould to harden fully and was pretty easy to release from the sculpture without any problems.
The mould is very sturdy and flexible, it also appears to have done a good job capturing the detailing in the sculptures without any problems. Even the tiny areas are detailed.
These next few steps were pretty tricky to get right, and it took a few go's to find the right methods and measurements.
The products need to again be measured in equal parts using the same methods as outlined above. More Ecoflex can be purchased from Smooth On or Bentley Advance Materials however other prosthetic suppliers do have their own similar branded products e.g. PS Composite Ltd. If your experimenting for the first time you will definitely need to top up on products, the brands mentions are ace plus they don't mind you asking questions if your unsure!
Once you've got the 2 parts equally mixed added a little red flocking and skin tone pigment. These two components create the translucent skin tones, the multi tonal effects. The problem with this step is its all trial and error, there is not an exact measurement to follow. I took a few tries to get this right and it changes with each batch you make. So my advice is ... don't get frustrated if you don't add the right amount and it comes out too dark or too light!! Start small until your used to the measurements and mixtures.
To prepare the moulds you need to make sure you have properly ensured that the prosthetic piece can be easily released from the mould. Add Vaseline to the mould followed by spraying several layers of "FormCap" plastic (used to create bald caps) mixed with acetone to thin the mixture using an airbrush gun or paint the layers manually. This step is very very important to do right, if you don't you will never be able to release piece from the mould ending up with rips all over the shop!
To make it easy for yourself in both application and releasing attach a thin card board frame around the prosthetic, this will give the piece a little structure and help you when it comes to applying/blending the thin edges.
As you can see, I made quiet a few attempts at getting the silicone piece just right!
I either made the piece too thick or didn't put enough product for releasing or the pigment was all wrong!! Eventually I did it though, I finally got a batch right!
The application process is quiet simple, you just need to take your time and be care with the blending process. In this application I used a piece that was slightly too thick in areas around the edge, the thinner the edge the easy the blending is.
I used Pros-Aide as my adhesive just cause its my go to in most instances, once you have positioned and glued the piece (frame and all) in place you can begin to blend the edge. Use some isopropyl alcohol on a cotton bud to melt the edges away, in the process melt the frame off the piece as well. Once you've done this you can seal the edges with Pros Aide, dry and powder with translucent powder.
Now, ready for painting, I used my fabulous Skin Illustrator palette from PS Composites. The FX palette has some good colours but the basic one will also do.
You first aim when painting the piece is to get the skin layers just right, especially the colours of the fat and tissue layers of the dermis. Its important to make sure you understand the real colours, which means a bit of medical research is necessary when doing SFX, if your squeamish its not a good area go into!
Once the colours are just right, you can continue with the blood. I got some bloods and wound fillers from Bloody Marvellous who were at IMATS this year.
As you can see the bloods are very realistic with good texture. I love those product and I can't wait to use the other bloods in future projects!
I even had a bit of fun after with stiches just to test out just how realistic silicone is to skin. The stiches went through so easily and the movement that was created was very close how skin would react. There is a video clip up on my instragram, if you want to have a look and am sure at some point I will be putting up the full video on youtube.
I have to say silicone is an incredible material to use, the way it feels and moves works very well for recreating sfx. Although it is difficult to use at first, practice defiantly makes perfect. I would like to continue practicing with these products and perhaps make a larger piece for the face.
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Bye for now,
Ruth x
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