I did not include enough extra mold material on the wrist area to assist in the casting process.I forgot to add a release agent when casting.having the fingers splayed apart creates small areas that casting material needs to get into.The hand's posture creates several undercuts which make it difficult to release from the mold.My cast didn't turn out as I has expected, here's some mistakes I made along the way. Once it has cured, release it from the mold! It will want to expand and push the mold out of shape so hold the mother mold together with tape or rubber bands. (The pinky finger on mine didn't cast because I didn't push the material into that part of the mold)/ Try to get the mixture into all parts of the mold. When they are fully combined, pour them into the mold. Remember this foam will expand 2x it's size.Ĭombine A and B in a separate mixing container. Measure equal parts by volume of A and B. Spray a mold release into the mold (I forgot to do this and two of the fingers ripped off while releasing it from the mold!) If your mold will not stand on its own, use something sturdy to prop it up.īegin by gathering your casting materials. You may want to hold the two sides together using a rubber band. Place the silicone mold back inside the two halves of the mother mold. This will make the casting process easier. Remember to apply silicone about an inch or two past the area you would like to make a cast of. Repeat this process until you have a roughly uniform. They can catch and re-apply the dripping silicone while you add new silicone to conserve time and materials. This is where having an assistant can come in handy. The silicone will want to drip off of your model as your're applying. You may find using a large popsicle stick to apply silicone is more effective. This layer does not need to be as precise and you'll be applying more material to build up a thick mold wall. While the first coat is curing start mixing up silicone for the second layer. It will get thicker and emit some heat during the curing process. Make sure your model maintains the desired posture through out this process, the silicone will begin to cure by the time your first coat is done. I find using a brush for the first coat is the best way to capture all the details. Mix up just enough to get down your first thin coat. This is a fast curing silicone so don't mix up a huge amount or it may cure before you have time to apply all of it to your model. The body double silicone has a convenient one to one by volume mix ratio. Now that you're sure your model won't react to the materials you're using, mix up a larger amount of silicone for your first mold layer. I've ruined too many outfits making molds. Put down a drop cloth before you start and make sure you and your model are wearing a smock. It may be helpful to have all of these supplies on hand: Not all silicones are skin safe and may cause an allergic reaction in the model. Remember to use a skin safe mold material. I used the body double starter kit from because it contains all the necessary supplies for making a decent sized lifecasting. If this is your first time making a mold you might want a third person on hand to help you as the silicone has a short work time and a second pair of hands will help things go more smoothly. If you'd like a mold of yourself have a friend help you, or make a mold of your friend instead! It is advised that you do not attempt to make a mold of yourself because it will be difficult to maintain your mold posture while applying mold material and waiting for it to cure. Fist step to making your lifecasting is gathering supplies and a model.
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