One. ? Manufacturing containers:
One-body mold/two-body mold, only one-body mold is needed to copy plane objects, and two-body mold is needed to copy three-dimensional objects.
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2. Measure the length, width and height of the object to determine the size of the required container.
3. Make the container according to the measurement data. Materials are optional, but the edges must be sealed or gaps filled with clay.
The container should be 2.5cm longer, wider and higher than the object.
Cut four sides and a square bottom of the container from the foam board.
Adhesive plates using all-purpose adhesive must be sealed.
2. Placement of objects:
1. There are some differences between the manufacturing methods of integral mold and double assembly mold.
Integrated mold: coat a layer of glue that can be easily removed on the bottom plate of the container, and then put the object vertically into the container with the bottom facing down. Adhesive can prevent rubber from leaking during the manufacturing process.
Clay should be used to make molds.
Double-mode: put the clay into the container and insert the object vertically. When the height of clay reaches 1/2 of the object, smooth the surface clay.
2. Mix the plastic mold rubber according to the instructions. There are many kinds of molding adhesives, so you should know them clearly before buying them.
Latex is cheap and easy to handle, but it takes a long time to demould.
Silicone is very durable.
3. Brush a thin layer of rubber on the surface of the object before molding, and carefully fill the gaps on the surface of the object.
4. Pour the rubber, flush with the container mouth, and completely cover the object.
5. Wait for enough demoulding time according to the instructions.
Three. ? Take out the mold:
Integral mold: break the container and take out the object from the mold. At this point, the mold can be used.
2. Make the other half of the dice:
Break open the container and take out the mold which is half clay and half rubber.
Carefully remove the clay, leaving the rubber part.
Carve 3-4 small triangular depressions on the rubber mold to be spliced as the joint with the other half of the mold.
Re-make a container according to the existing half rubber mold, and the height of the container is twice that of the existing mold.
Put in half a rubber mold, and then put in the object. Ensure that the periphery of the rubber mold fits the container.
Apply a layer of release agent on the surface of the rubber mold half to prevent the mold half from sticking.
Pour the rubber into the container, let it cure and demould. The two-piece mold is ready.