You will need
- - shape;
- - a plaster solution;
- - province or plug;
- - the cycle.
Before the casting of the figure from plaster clean form and cover the surface with lubricant oil or vaseline. Grease is better to use a liquid, apply it easier and it will allow to better preserve the ornament and the small details. The clay molds lightly sprinkle with water, so she relented, too dry surface will quickly pull out of plaster and get the finished product after drying will be more difficult.
Prepare a plaster solution as recommended on the package. Try to prepare as much mixture to fill the entire form and not to waste.
Fill in the form with a solution of about one-third. It is very important that the plaster fills all the hollows, to do this, shake the form or lubricate the important places with a bristly brush. Try to get all the air bubbles have risen to the top.
To evenly apply the solution on the entire inner surface of the forms, tilt it in different directions. You can also blow on the plaster, at the same time shaking design.
When the plaster mixture a little clutch, give it roughness from the inside, to do this, scrape it with some steel tool (e.g., a fork or tsiklej with teeth in the form of a "dovetail").
To give strength to the plaster figure, armywide its steel rebar or wet torch, hemp, oakum and other materials were on hand. Drown them in naletom solution and quickly fill in the form with remaining plaster (better if it is thicker).
Please note, pour the second layer of the mixture should be when the first layer is just beginning to set but is still wet. Plaster dries very quickly, so on the whole operation you have only a few minutes.
Dub the plaster and remove the excess tsiklej or pravilam (sliced rod). Leave the form for some time to solidify, and then remove the finished product.
Advice 2 : How to cast plaster
Vases, decorative masks, sculptural forms and many other beautiful things can be made from such material as plaster. This material takes a different shape and easily painted. Gypsum is the oldest building material on earth. Working with plaster is fun, which over time can develop into a serious hobby. It is absolutely safe.
You will need
- Gypsum, water, clay, a knife, a cellophane film, wire.
To cast from a plaster vase, decorative mask or a simple bas-relief, you need to first make a model of the future product. The model is a sculpture sketch, in which the molded gypsum product.
Try to cast from the plaster first the simple picture. For example, some plant.
Take a very firm stalk of a plant, which has a convex inflorescence and leaves.
The softened clay is put between two layers of plastic film.
With a rolling pin roll out the clay to a thickness of 1 cm At the time of rolling the film lift that it doesn't stick to clay.
Remove the upper part of the film and put the plant on top of a layer of clay.
Cover again with foil and press with a rolling pin over the surface. The plant evenly burned into the clay.
Remove the tape and very carefully remove the plant from clay. Stuck part of the stalk, remove with tweezers. Remove all debris, taking care not to damage the imprint on the clay.
Your plasticine sunk relief is almost done.
Make bumpers. For this careful movements lift the edges around the contour of the clay sketch.
Prepare a loop of aluminum wire size you need. For this loop on a nail to hang the finished product.
Prepare a mixture of plaster according to the instructions on the package. The mortar consistency should be like sour cream.
Ready solution pour the plaster in a clay form with sides. Try not to pour through the sides of the form.
Immerse the prepared loop of wire into the solution.
An hour and a half, when harden plaster solution, proceed to the removal of the workpiece from clay.
Fold the edges to release the edges of the castings and remove the clay. Depart it very easily.
If desired, you can cast gypsum wall plate.
To do this, cut along the contour of the flowers with any postcards, and, having moistened it, put it face down on the bottom of a deep dish.
Divorced gypsum pour into a bowl with pictures to make a correct circle.
Insert the eyelet and allow to harden plaster.
When the plaster is dry, remove the impression. Trim uneven edges with a knife.