Application, properties and composition of polymer paint (plastic)

Application, properties and composition of polymer paint (plastic) Application, properties and composition of polymer paint (plastic)

Plastic things and objects have a large amount advantages. They are very durable, lightweight, and can also contact water without any problems and tolerate temperature extremes quite well.

But most often the appearance of plastic products after a period of time becomes not the most attractive, and during use the plastic loses its original appearance, becomes ugly and scratches are found on it.

And in certain cases, the owner ceases to like the original color of the plastic product, and in this case, plastic paint will come to the rescue, thanks to which you can protect the surface and make it beautiful.

General information

Description of paintwork materials

Plastic-type paints have significant differences from other paints and varnishes.

The use of this type of dye has certain nuances and features, for example, if staining of ABS or PVC plastic is required, then first you need to apply a layer of a special primer, which is sold in special hardware stores with paint and varnish products.

Such paint is a solution of pigment-type substances in a polymer suspension, and in this liquid the plastic will be in a dissolved form, and an inorganic or even organic solution is used as a solvent. Some people tend to believe that plastic paints can only be applied automatically, and then heat treatment of the painted layer is required. Such processing is required, but the dye can be applied not just from a spray bottle, but also in other ways.

Main advantages

Liquid plastic has the following advantages:

Let's talk more about paint brands.

Details

Example of plastic paints

Today there are many varieties of colorants for plastic. For example, we propose to consider a fairly popular economical option for a product - PS-160 paint. The cost of such a dye is small, and the price is no more than 110 rubles per 1 kg.

The manufacturing company makes paint from the following components:

  • Polystyrene.

  • Pigment substances.
  • Special additives.
  • Organic solvents.

In such a coloring mixture, small pieces of polystyrene will be dissolved in toluene, and coloring pigments should be added to this solution. After application and evaporation of a component such as toluene, the applied layer will remain on the plastic, which forms a hard protective layer.

Field of use

Almost every plastic part or structure can be painted with polymer paint (plastic). But for different types of plastics, different types of paints and varnishes are used.

Most often, plastic-type dyes are used for staining:

  • Application, properties and composition of polymer paint (plastic) Rigid PVC
  • Siding.
  • Building profiles.
  • Sandwich panels.

  • Window and door frames.

Plastic cleaner can also be applied to other materials such as concrete, brick, wood, plaster and other surfaces. Plastic enamels are also used for painting metal products.

For example, PS-160 paint is used to paint the following objects:

  1. Pipeline systems, including heating routes, through which the heated liquid will be supplied.
  2. Metal parts and structures in a production building such as a workshop or warehouse.

  3. Metal structures that are constantly in contact with water - ships, swimming pools, boats, piers, etc.
  4. Bearing elements of all kinds of structures, including bridges, viaducts, buildings and other structures where an increased indicator of reliability is required.

Consider the characteristics.

Technical properties and characteristics

Any plastic-type paint has its own individual properties, as well as characteristics. For example, you can cite the parameters of the popular PS-160 coloring agent:

  • The drying time of one layer is approximately 1 hour.

  • Paint consumption for air spray application is 0.2 kg per square meter.
  • The proportion of substances in the applied layers is from 23 to 30%. This indicator will depend on how much the paint is diluted with a solvent.
  • Resistance of the dried layer to static effects of liquid at room temperature - at least two days.

Please note that manufacturers recommend using toluene as a diluent. In addition to it, you can use a solvent, but in no case with white spirit / acetone, because they convert the paint into an emulsion, and this will have a bad effect on the quality of the protective layer. The instructions for the paint and varnish will necessarily indicate which solvent can be used in order to dilute the composition.

Varieties

Today, several varieties of plastic-type paints are made for processing plastic and other materials.Here is a list of the main, most popular types:

  1. Water-based acrylic enamels or even acrylic-polyurethane compounds.

    Most often they are produced in two different containers, one with a base and the other with a hardener. Before applying the paint and varnish composition, the paint components should be mixed together, due to which the painted layer will be resistant to mechanical and chemical stress. Acrylic types of compounds have an excellent indicator of adhesion, resistance and hiding power by ultraviolet rays.

  2. Polyurate dyes have high strength values. Such compositions are a mixture of acrylate and polyurethane components.

    Polyurethane-based plastic paints can simultaneously play the role of dyes and primers. If the surface is clean, it may not be primed in advance. Although polyurethane formulations are inexpensive, their excellent wear resistance pays off in part. Moreover, such mixtures are very economical, have high resistance to water, as well as excellent elasticity and resilience. The polyurethane coating will help to maintain the appearance and reliable protection of the product for a long time.

  3. Soft touch is a special rubberized paint that is applied to mobile phones, laptops, tablets, glasses cases, toys, flashlights, tool handles and most other items. The painted surface is very pleasant to the touch, able to absorb sound and light, and also has excellent scratch resistance. After staining, things will not slip in the hands, and paint will create a warm, pleasant and soft layer on them. Thanks to such a rubberized paint, the products are able not to wear out for a long time. This mixture can also be applied to wood, plastic, metal, polymer materials and other surfaces.

  4. Vinyl-type colorants are environmentally friendly substances that cost very little. Although vinyl compounds will have several advantages, they have very weak durability, and the coating quickly deteriorates, scratches, and becomes unattractive. For this reason, such paints are used less and less in our time.

Now let's talk about how to prepare a place for painting.

Surface preparation before painting

Before painting plastic or any other material with liquid plastic, you should follow the preparation steps:

  • Any type of dirt such as debris, dirt and dust should be removed from the surface with a damp cloth or brush.

  • Use organic solvents and a rag to degrease the material so that there are greasy oil stains on it.
  • If the surface of the metal is painted, it should be cleaned (ideally to a shine) with a wire brush or sandpaper to remove corrosive deposits, rust, scale and slag.
  • Remove the old coat of paint.Sandblasting is the best option, but if you do not have such equipment, you can use a hand or electric sander.

If there is rust on the metal surface, it is advisable to treat it with a special rust converter before painting.

Such a solution will quickly react with the rust layer, and as a result, a strong, and still insoluble layer will appear. But if there is layer-type rust on the material, then it is better to remove it mechanically. After cleaning, it is recommended to prime the surface, but this is not necessary at all. Whether or not to prime the base should be specified in the instructions for use of the coloring mixture.

Please note that after cleaning the metal, you should start painting no later than 6 hours later.

Otherwise, the moisture in the air will begin to provoke the formation of corrosive processes, which means that cleaning will need to be repeated again.

Algorithm of work

To paint plastic or other material, ideally, is not one, but even two or three layers of liquid plastic. To carry out staining, all kinds of tools are used, some coloring mixtures can be applied only with a spray gun, and the rest are applied with a brush or roller. If a spray gun is used, then the hose on it must be resistant to organic solvents. It can be painted in the temperature range from +5 to +31 degrees, and the air humidity should be no more than 75%.

It is not recommended to paint plastic or other surfaces at temperatures above +31 degrees, as otherwise the coating may begin to peel off. Moreover, you should not paint if the temperature drops very quickly, because this can lead to dew and condensation, and it is not allowed to paint over wet materials. Do not paint outdoors in fog and rainy weather.

Useful recommendations from specialists

When carrying out staining, the masters recommend adhering to the following recommendations:

  1. When painting indoors, be sure to take care of the quality of ventilation or aeration of the room as a whole. If it is not possible to organize ventilation, it is better to paint in the fresh air, because the paint may contain organic solvents that negatively affect the respiratory system and the human body as a whole.

  2. When painting, be sure to use personal protective equipment, as well as safety, such as protective tight clothing, glasses, rubber gloves and a respirator.
  3. In the building market, it is worth purchasing a sufficient amount of paint and varnish material and all the necessary painting tools in advance.
  4. Before painting the plastic, you can do without even special preparation.But there is a need to paint wood, metal, concrete, plaster or other types of materials with plastic paint, you should definitely carry out preparation work.
  5. If you need to paint broken and uneven surfaces, it is better to use aerosol cans.

    When using the nozzle from the spray gun should be at a distance of about 0.25 meters from the paint surface.

  6. When painting, make sure that there are no smudges and sags of the dye mixture, because they will spoil the appearance of the product.
  7. When applying a large number of coats, wait for the previous coat to dry, and this takes several hours before applying all coats.

So, plastic-type paints are very popular at the moment.

It is polymer paints that are the most effective ways to protect the surface, make it durable and visually attractive. If you follow the recommendations for dyeing, the dye will look great and hold firmly.

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