By EasyHow

How to make a mold for casting plaster

In the manufacture of various articles of plaster can not do without mold for casting. The quality of the shape depends largely on the quality and durability of gypsum products. Modern technologies allow to perform a simple flexible form for casting from materials such as silicone and polyurethane. This form may be made even in a home workshop.

You will need

- fiberglass;
- wood particle Board;
- wooden plank;
- sculptural clay;
- silicone or polyurethane;
glue.

Instruction

Prepare the container for pouring. Use any reasonably stiff material, for example, fiberglass, chipboard, wood plank, and even elements of children's designer "LEGO". Sometimes you can pick up and ready shape , or a box of suitable size. If necessary, clean the parts of the future container from dust and possible contaminants.

Connect the details of any shell with glue. The problem is that the container had no cracks and is firmly held as a unit. It is most convenient to connect the pieces of the shell with a glue melt, seasoned in a special gun.

Take nezaterdevshej sculptural clay and evenly lay it to half of the container. The clay is too sticky, so its use is not recommended. Make sure that the surface of the clay smooth and has no cracks.

Prepared in the clay, place the product model. With a pencil make the castles in the form of holes. They needed to in the manufacture of castings in the further part of the form has not changed.

Measure out the necessary amount of forming material. It is possible to calculate the size of the container. You can also fill the container the bulk material, and then pour it in a measuring device for volume determination.

The surface of the model oil separation grease. Silicone grease for the same shape cannot be used. Best suited soap, and fat or wax lubricant.

Mix the components of the molding material in a constant ratio (it is usually indicated in the instructions). Slowly pour part of the contour of the shell in a thin stream. Do this slowly and carefully so as not to cause bubbles.

Wait until the top of the form cured. Then completely remove the clay, being careful not to damage the surface.

Again oil the surface of the model and the form, including locks. Prepare a molding material. When fully cured forms reanimate it apart and remove it from the model of the product. Form ready for casting.

Now connect parts of the resulting shape, tightly pressed to each other. Prepare a gypsum composition and use it for making the desired casting.

Note

Sculpt from clay, of clay, you can create plaster products. Try to design the crafts of plaster, using their hands and imagination. Scope for creating things out of plaster is really huge. The main thing – to purchase dry plaster powder, it is possible to do today in any hardware store, well, to prepare the composition the desired consistency. To create three-dimensional figurines made of plaster with your hands is also very easy.

Useful advice

Otherwise, as they say, and all life is held. Suggesting You take up a fascinating hobby – the creation of various products made of clay, plaster. You will see how it's interesting and exciting. You are the Creator, everything will be done just the way You and only You want. Your ideas take tangible form, which you can touch, pick up. And let it be not works of art, but Your work will bring You much joy and pleasure.