- - shape;
- - a plaster solution;
- - province or plug;
- - the cycle.
Advice 2 : How to make gypsum
The quality of gypsum products is primarily determined by the choice of gypsum powder and the careful observance of technology of preparation of the solution. To make gypsum at home is possible.
This material was used in ancient times, before the invention of cars and electricity. Everything you need for cooking is dry plaster and water, the capacity to prepare the solution, a spatula for mixing. It's good to have a fine-mesh sieve (0.2-0.5 mm) for sifting dry plaster before preparing solution. The fresh plaster of good quality, in original packaging pre-screening is not required. For sculpting now available is a large variety of sets, which in addition to gypsum powder includes tools for working with plaster.
The basic requirements for the process of obtaining a plaster solution is the same for all types of plaster and methods of solution — powder pour into water, stirred with a spatula, avoiding formation of air bubbles in the solution. It is possible to pour a thin stream, while simultaneously stirring the solution (this may form a foam on the surface that you want to delete) or to fill the middle of the mound and stir with a spatula cutting movements inside the volume of the liquid without trapping under stirring the air. In an industrial environment to remove air from the solution using vacuum.
Tighten the cooking process is impossible, we must have time to make a cast for 1-2 minutes. The consistency should be the same as heavy cream or liquid cream. Usually 0.7 l of water poured 1 kg of powder. Too liquid solution will reduce product strength, too thick, bad fills in all the corners and meanders form.
The solution is to add dry plaster to obtain the desired consistency, breed the plaster with water is impossible. You also cannot use for solution preparation vessel with the remnants of the previous batch of plaster.
Depending on the brand of plaster mortar hardens over time from 5 to 30 minutes, so you need to mix small portions to be used for a limited time of solidification. Work with a solution in the period from the start of setting until the hardening. Further, the product should be left in a warm room to dry. Reduced temperature affects the quality of gypsum products.
Advice 3 : What to make of the cast with their hands
Photo frame made of gypsum
For the manufacture of frames you need the clear plastic cover from the cake or other disposable containers, in which the middle is smooth, and the edges are embossed. It should be the same size as what you want to frame. Carefully inspect the form. If it has some dents, straighten them. Otherwise it will be imprinted on the finished product.
Pour into a deep bowl of water and gradually pour it in dry plaster. Thoroughly stir a tablespoon or a fork. It is also possible to split the resulting lumps. The mass should be homogeneous, like liquid sour cream.
If you dissolve the plaster with warm water, which dissolved a pinch of salt, it will be faster to set.
Pour in the form of dissolved gypsum layer little more than 1 cm. Slightly shake the bowl or tap it on the table. Then the liquid mass fills the whole terrain, and the air bubbles will come out. Lay across the surface layer of gauze or bandage. This reinforcement will make the finished product more durable. Immediately pour in the shape of another portion of the plaster a couple of inches.
If you want to make a large frame to reduce the weight of plaster products need to do a "sample". Back away from the edges slightly hardened DIY 3-4 cm and vystrelit the whole of the middle frame with a spoon until a layer of gauze.
A segment of stainless steel wire make a loop to the finished frame can be hung on the wall. If no wire, bend the mount from a large paperclip. When the plaster hardens a little hack, insert the loop into place perpendicular to the plane. The final form of the fasteners will attach after complete hardening of the workpiece.
Leave to harden at room temperature. Periodically touch her hands. While the plaster hardens, the work piece will be very warm to the touch. When it has cooled, after about a couple of hours, remove it from the mold and place it on a flat surface for final curing.
Gypsum - pliable to handle the material. With a sharp knife, cut the finished DIY junk nodules, if they exist. Sand with fine sandpaper all imperfections. Just be sure to cover your nose and mouth to not breathe in the plaster dust.
Prime plaster frame impregnation for porous surfaces. After it dries you can decorate your product with acrylic paints. They do not require fixing varnish. The reverse side of the DIY varnish. In the middle frame place a photo or picture with suitable size. You can make a printout on a computer according to the specified parameters.
Sculpture of a child's toy
Volume figures, which are obtained by casting, children will love to paint. Immediately please be patient. Large blank for toys to dry out for a few days. Therefore, it is better to make several pieces.
Cut with a sharp knife at the bottom of the rubber toys. Mix the plaster and pour it into the resulting form. Shake it to the mass has penetrated into all the nooks and curls of the figures. Leave your artwork to dry for a few hours. Then, by bending the rubber from plaster, get cast sculpture. Pour a fresh batch of plaster in the form, and leave the toy to dry for three more days. Then it can be painted over.
Advice 4 : When remove the plaster
People of retirement age can wear a cast for up to three months, because with age the restoration of bone tissue protekaet much slower. On the wear time of plaster can be affected by various diseases, which disrupt the bone formation or inhibit mineral metabolism. For example, when collagenoses recovery time of damaged bone is increased at least twice.
How many get the cast off?
The patient can remove, imposed by the therapist to the cast at home. However, this can only happen with the direct instruction of a physician. He should recommend to the patient the exact period the plaster is removed. In addition, the patient after removal of plaster is necessary to undergo a medical check and, if necessary, to carry out the rehabilitation procedure. In most cases, they are mandatory, if the plaster was applied for a period of more than a month. For such a long period of human muscles time to atrophy, and it becomes difficult to perform their direct functions.
How to remove a cast at home?
The therapist puts a plaster on the retaining bandage. To remove it using one of two methods: the use of maceration or dry method. For removal of plaster the second method you need to use scissors or a sharp knife, and in some cases cutters. Scissors or a knife must make the incision in the direction upwards from the inner side of the plaster. When removing the plaster it is necessary to observe safety precautions. Cuts should be done gradually, slowly. In no case do not need to make cuts, keeping the knife sharp side to the body.
After complete cutting of gypsum comes the most unpleasant part — of its immediate removal. The plaster sticks to the hair on the limbs. It is necessary to tear off abruptly, as his gradual withdrawal will bring a lot more pain.
On the part of the body, which was covered with plaster, can be bruising. For the speedy recovery of damaged areas use special ointments which will allow the bruising to resolve faster.
To remove plaster, pre soak it is much easier. It needs a few minutes to hold in the warm water, after which it can easily succumb to cutting with scissors. In addition, the process of withdrawal will not be so painful.