Liquid plastic paint - features and benefits
Liquid plastic paint (polymer paint or plastic) is a suspension of a pigmenting agent in a polymer type solution. In such a paint, the plastic is dissolved in an inorganic or organic solvent.
Polymer includes most of modern paints and varnishes (with the exception of water-dispersion paints), including polyurethane, alkyd, epoxy and many others. Even water-based paints and varnishes can be conventionally called polymer.
The point is that despite the fact that the plastic in water-type compositions is not dissolved, but is in the form of a dispersion, after evaporation of moisture on the painted surface, a pigment-polymer mixture.
There is such a popular opinion that only those paints and varnishes that are applied automatically with further heat treatment can be classified as plastic-type paints. In addition, the polymerization process is carried out directly on the material to be painted when heated. This is a rule, but it is worth noting that this method of paint application is only one of the technological uses of plastic in order to protect metal or other materials.
Plastic paint has the following advantages:
Let's consider the paint in more detail.
As mentioned earlier, there are a large variety of polymer paints and varnishes.
As an example, we propose to disassemble one of them and this is PS-160 enamel. This paint and varnish material can be attributed to the economy class, since its price per kilogram is not more than 110 rubles.
According to the data from the manufacturer, the enamel contains the following components:
In this case, the polymer (small foam pieces) is dissolved in toluene. There is also a coloring agent in the solution, and when toluene begins to evaporate, only pigment and plastic remain on the surface, which create a hard coating.
Scope of use
Although the scope of application of plastic paint is very wide (concrete, wood, plaster, bricks, etc.), the type of enamel in question is used only for painting metal parts.
The scope of the PS-160 means will include coloring of such products:
What are the characteristics of the product?
Below we have given the characteristics of liquid plastic PS-160:
- The drying rate of each layer is 1 hour.
- Average rate of enamel consumption when working with a pneumatic spray gun is 0.2 kg.
- The fractional content of non-volatile components in the enamel composition is from 24% (in the event that the composition is too viscous, it is permissible to additionally dilute it).
- Stability of the film under static exposure to liquid (the temperature indicator will be +20 degrees) from two days.
Please note that the manufacturer recommends using only toluene as a solvent. You can also use a solvent. Under the influence of white spirit, acetone or other solvents, the enamel will transform into an emulsion, which negatively affects the quality of the coating.
Before you start staining, you should prepare:
The manufacturer advises using a rust converter.
Such a drug is a chemical-type substance that reacts with rust. The result is an insoluble, durable film. But if we are talking about sheet rust, it can only be removed by mechanical action. If there is an old layer of paint, it should be removed. It is not necessary to apply a primer under PS-160 enamel.
Important! The paint should be applied no later than 6 hours after the completion of the preparation work. Otherwise, important air will quickly provoke the future development of the corrosion process.
Application of enamel
Enamel should be applied in 2-3 layers. You can use a roller, brush, spray.Moreover, if you prefer a spray gun, you should equip it with a hose that is resistant to organic solvents.
The air temperature during painting should not be less than -5 degrees, and the humidity level should not be more than 70%. Do not paint in very hot weather, because in this case there is a possibility of the coating peeling. You should also postpone work if the air temperature drops very quickly. The fact is that a rapid decrease in temperature can lead to dew loss, and wet surfaces and paints and varnishes are incompatible.
When applying paint, liquid plastic should follow these rules:
If an excellent ventilation system is not available, good ventilation should be provided.
So, plastic paints are any paints and varnishes that contain a polymer. Enamel painting is carried out according to the same rules as with other paint.
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Posted By: Work Style |13, Nov 2020
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Posted By: Work Style |13, Nov 2020