![]() Then, sit back and let the mold cure: 3-4 hours at room temperature will do the trick. Next, pour the mixture into your container and over your object. The 2 parts of the Mold Making Material kit are actually 2 different colors (white and dark blue) so you'll know when the mixture is thoroughly mixed when the color becomes a consistent medium blue. Pour equal amounts of Part A and Part B into your mixing container. Now you're ready to have a little fun with Mold Making Material! In this example, we're going to make our mold using a milk container cut to size. Place a little dab of glue on the base of your object to secure it, and place it down onto the base of the container, ensuring it is centered. Once all the seams have been glued, set your box aside and allow the glue to dry. You can place your object inside the box as you're building to ensure you've left enough room all the way around it. Once your pieces are cut to size, remove the protective film. The plexiglass sheets are fairly thin so they cut easily and snap off with a little pressure. You will need 4 identical sized pieces for the walls and a smaller piece for the base. Cut your pieces to size with your utility knife. You'll need to leave about 1/2 - 3/4" of space on each side of your object to capture every detail and to ensure the walls are strong and durable enough to re-use the mold again. Determine the size of box you’ll need to fit the object you want to cast 5 sheets of plexiglass acrylic sheets (leave protective film on)ġ.cutting mat or safe surface to make cuts.The tape will not only make the box waterproof and leakproof, but allows the finished mold to easily pull away after the silicone has cured.īuilding a box out of plexiglass takes a little more time but it's worth the effort since you can re-use the box over and over again. You can build a box out of cardboard or foam core, but you'll want to line the inside of the box with tape as well as the sides and corners. you can use plexiglass for a box that can be used again and again.you can make a single-use box out of cardboard or foam core.If you need something sized specifically to fit an object, it’s easy to build a custom box. We used a milk carton to clone our King Tut figure, cutting it about an inch taller than King Tut and using the bottom half. This will also help the mold pop out of the box with ease.Įmpty milk cartons are an even better optionĮmpty milk cartons are stable and plastic lined, which means they won't leak or absorb the silicone and will easily pull away once the mold has cured. The cardboard will absorb the silicone so to prevent this, you'll have to line the interior of the box with a good quality tape like packing tape or sheathing tape (Tuck Tape). Small cardboard boxes are sturdy and come in a variety of sizes to fit most objects. Small cardboard boxes are another great option They come in a variety of shapes, sizes and heights to suit any object you wish to mold. Plastic containers are sturdy, re-usable, leak proof, waterproof and allow the mold to easily release once cured. If you don't have time or the desire to build your own box, you can make an effective mold from items easily found around the house. We're going to show you a couple of quick and easy options using objects from around the house or if you prefer to DIY it, we'll show you how to build your own custom mold box. ![]()
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