Whenever you obtain any materials whether it be a pigment or a wax or whatever, it's a good idea to request a Material Safety Data Sheet (MSDS). First and foremost, if you can't work with these materials safely, then you not only endanger yourself but possibly others around you. After it has been thoroughly mixed it will be ready to pour, the resin will warm as it mixes.It may seem like a strange way to begin a catalog dealing with sculptural supplies, but we think it's important enough to be here. Mix vigorously for 3-5 minutes with a stir stick. We mixed a black pigment in for some of the later casts, which produced varying gradations from dark black to grey. * If you want some of your casts to be different colors you can mix a resin pigment in at this stage.
INSTACAST MOLD FULL
Take your Part B portion of your Insta Cast resin and pour it over Part A until it reaches the full line. Take your Part A portion of your Inst Cast resin and pour it until it reaches the halfway mark on your cup. Mark half of this on your cup before you pour the first part of the mix. Mark the total amount you will be using on the cup - this will vary depending on your object. Get a new plastic cup to use for mixing the resin.
INSTACAST MOLD SKIN
Make sure to put your gloves back on - resin is harmful on the skin You will want to take a rubber band and tie it a couple times around your mold so that it is held firmly together for casting. This material will easily fit back together where you cut it for minimal cast lines in the resin cast. You will be able to see a high degree of detail along the hollow space in the mold. Once you can get a grip on your object begin to pull it from the mold, which is flexible and will separate along the lines we cut using the Xacto blade. Repeat step # 3 cutting down the opposite side of your mold.Ĭarefully separate the mold near the exposed part of your object. (it may be helpful to mark 1/4in from the opposite end of your mold before continuing to the next step as we do not want to cut the entire mold in half)Ĭarefully take the Xacto blade and starting from the exposed part of your object gently cut down the mold until you are 1/4in from the bottom. Turn the solid mold with your object in it upside down so you can see the bottom side of it where there is no silicon mold material. (because the silicon mold is flexible as is the disposable plastic cup this should not be difficult) Now that you mold has had plenty of time to cure, pop it out of the container. We chose this silicon because it was durable and could be reused many times.
INSTACAST MOLD TV
Get a coffee - make some more art - go to work - watch your favorite TV show because this silicon takes 6 hours to cure (complete the chemical transformation) - you can buy different types of mold-making materials that have a much shorter cure time if you prefer. Tap the sides of the cup until you see air bubbles start to rise (this will prevent your mold from having craters and deformations because of air pockets) Pour the silicon mixture over the secured object making sure that completely covers the top by at least 1/4 in. Now mix the 1:1 ratio of Parts A & B with a stir stick until there are no streaks of white and the color is completely solid. Take Part B of the Smooth-On Star Mold 30, shake vigorously for a few seconds, and pour it over the Part A until it fills the cup (blue liquid). Take Part A of the Smooth-On Star Mold 30, shake vigorously for a few seconds, and pour it until it fills the cup half way (white liquid).
Get a different cup and mark the half way line on the cup - in this case it was 1oz (our cup was 2oz) (your object will not stay put if you pour silicon over it without securing it first)
A dab of Elmer's glue or a drop of hot glue will usually be enough. Take the object you are making and attach it to the center of the container you will be using (make sure that there is at least 1/4in space above your object for the mold making material.
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