Useful Tips

Tip 1: How to pour plastic parts at home


Plastic is a universal material. It has been widely used in the manufacture of various assemblies and parts in both industrial and household appliances. Products from it are used in the design of interiors of residential premises and offices.

A type of material called liquid plastic allows you to create a variety of crafts in a variety of shapes and sizes. This makes it possible to implement original design solutions. How to make liquid plastic at home?

Materials for the manufacture

To make liquid plastic with your own hands, you need to prepare the following:

  • glass or metal container,
  • acetone,
  • Styrofoam.

The amount of acetone used depends on the desired volume of the finished product.

If you want to make liquid plastic with your own hands, the recipe for its preparation will be based on dissolving the foam in acetone. To do this, use polystyrene foam. It is a packaging container for various household and electronic equipment.

How to make liquid plastic with your own hands

Step by step recipe preparation of the named material looks like this:

  1. Open the container with acetone and pour the liquid into the glass container so that its level from the bottom is approximately 1 cm.
  2. Polystyrene foam must be broken into many small pieces, each of which will easily fit under the thickness of the solvent.
  3. Do-it-yourself liquid plastic can be made by lowering each piece into a container and waiting for it to completely dissolve.
  4. Styrofoam should be added to the tank until it ceases to melt. Then you need to wait 5-10 minutes for the unused acetone to evaporate.
  5. After that, a viscous mass forms at the bottom of the container, which can be used to produce a variety of products.

Knowing how to make liquid plastic, remember that the complete hardening of the mass lasts 20-30 hours. Therefore, the manufactured part cannot be removed from the mold for a given period of time.

Apply the substance with a small rubber spatula. The movements should be smooth. Liquid plastic must be stretched on the work surface. If gaps are filled with it, it is better to use brushes with hard bristles in the work. They need to “push” the mixture into the gaps. After the plastic hardens, it is recommended to apply another layer of the substance.

The described tool has long been sold ready-made. It is only necessary to warm it up in a water bath or in special equipment. Also, a building hair dryer is often used for this.

As a rule, liquid plastic is produced in tight packaging. Its terms and conditions of storage are strict. The temperature in the room where it is located should not fall below 15 degrees. Otherwise, the tool will lose performance:

  • viscosity,
  • elasticity,
  • hardness after solidification
  • practicality,
  • durability.

The cost of liquid plastic is quite high. That is why it is better to do it yourself.

Precautionary measures

Acetone is a very dangerous liquid that has a very negative effect on the human body. Therefore, it is allowed to make liquid plastic with your own hands only with strict observance of the following precautions:

  1. Before working with acetone, you must carefully study the instructions for its use. It is indicated on the container label.
  2. Special sealed safety glasses should be used. They will protect your eyes in the event of dripping and evaporation of liquid. Working without them can cause serious eye injuries.
  3. Acetone is toxic, therefore, it should be used only within a well-ventilated area. It is necessary to use respiratory protection.
  4. It is a flammable product. Therefore, do-it-yourself liquid plastic is far from sources of open flame. And when performing work, smoking is strictly prohibited.
  5. Residues of acetone must not be drained into the sewage system.
  6. At the end of the process, as well as after pouring the finished plastic into molds, you need to wash your hands thoroughly.

Liquid plastic applications in decoration

For decoration, the tool has been used for a long time. After its application, an elastic film appears on the treated surface. It has high water resistance and UV resistance. The material protected by such a film is not afraid of aggressive detergents. The smooth surface has a pleasant sheen and retains its characteristics for many years.

Liquid plastic in window works

Most newly installed plastic windows in the connection area have gaps. To eliminate this phenomenon, all the details of the window structure, which are interconnected, are treated with the described substance. After drying, it creates an elastic tight film on the surface. Application of liquid plastic on the windows with your own hands is possible after the manufacture of the material according to the above procedure.

Anti-corrosion agent

Liquid plastic is characterized by a high degree of adhesion to the treated metal surface. This property of the substance began to be used in anti-corrosion treatment of steel. Liquid plastic is applied to the surface without first priming. It dries in a few hours. After that, a film forms on the surface that protects the material from rust.

"Semi-finished products" will help you out

Plastic scrap can be found everywhere. Old broken things constantly appear at home, the street is full of bottles and packaging. A lover to do something with his own hands may have an idea to collect all this, grind it and melt it into something valuable.

A beginner "caster" should not do this, since each type of plastic has its own inherent properties, so it would have to be melted at different temperatures. In addition, parts are usually cast in production in special plants where high pressure is maintained.

Even if you manage to pick up pieces of plastic of the same kind and grind them, melting will give bubbles. So it’s best to go to a hardware store and buy liquid plastic, from which the parts are no less durable than the factory ones. Epoxy can also replace plastic. You will also need:
- silicone
- large capacity
- lithol.

If you still decide to make something out of plastic scrap, do not do this indoors. Vapors of plastic are toxic.

Make the shape

To cast a few plastic parts at home, you will need a master model. You can make it from anything. Fit for you:
- plasticine
- gypsum
- wood,
- paper and many other materials.

Make a model of the part to be cast. Coat it with lithol or other grease. After that make the form. Silicone molds are becoming increasingly popular. This is understandable, working with this material is easy and convenient, but there are several circumstances to consider. Firstly, silicone is of two types, pouring and coating. Secondly, each species has its own elongation coefficient and its own viscosity. As for the first parameter, silicone is suitable for plastic molding with a coefficient of 200%.

Pay attention to the viscosity coefficient. The smaller it is, the more accurate the shape will be. This is especially important if you intend to work with filling silicone. Also consider the polymerization time. If you have pouring silicone, put the master model in a flask (it can be made of steel or, for example, bronze) and fill it with silicone. Gently apply the lubricant with a brush, taking into account all the bumps. Allow the silicone to solidify, then remove the master model.

The flask is a metal container. It should be a little bigger than the master model.

How to cook plastic with your own hands?

To do this, you need to take water, white vinegar, starch and glycerin. Mix everything and heat the mixture to make it transparent. After that, pour it on the parchment and let it cool. After that, it can be used.

If you use gelatin, then the manufacture of plastic will be slightly different. You will need to combine all the ingredients in the pan and cook them until all the lumps are removed in the mixture. Maybe you need a mixer to break up lumps. Place the saucepan on the stove and boil the mixture at a low temperature. If you plan to make the plastic material colored, add a little dye to the mixture.

Heat the mixture to a high temperature, it should foam. After that, remove the saucepan from the stove, continue stirring the mixture. Pour the plastic onto a plate covered with foil. After that, you will need to wait until it hardens.

You can use improvised tools and ingredients to create plastic at home, or you can purchase the Oyster scientist’s kids kit. With it, you can cook plastic quickly and easily. You can buy such a kit on the website

The preparation of bioplastics using this kit will take place in several stages. First you will need to prepare a solution. To do this, pour in a container of water, pour glycerin with citric acid and mix well. After that, you will need to fill in the starch. The mass will be more dense. Heat the resulting mass; place a container on the stove. Warm up the product and constantly stir it. After the mass becomes thick, remove it from the stove. You will receive a liquid mass, which will need to be dried before it turns into a finished product. After that, you can use the plastic and dispose of it without harm to the environment.

Take a flat plate and pour the mixture on it. Put it to dry on the windowsill. Soon the soft mass will be able to turn into a bioplastics. Children are very fond of creating something with their own hands. Making bioplastics is very simple and fun.