Metallic paint is a special composition designed to give the material a beautiful gleam. More often this kind of paint and varnish materials( first of all aerosol paint metallic) is used in the automotive industry.
- Differences between metallic and other types of paints
- Paint composition
- Types of paints
- Painting features
- Drawing of coloring substance
However, in recent years, metal shine has also become popular in construction and repair work. The use of this type of paintwork has its own characteristics, which we will discuss in this article.
Metallic differences from other types of paints
The main differences between metallic paint and conventional paint materials are as follows:
- Aluminum powder is present in the composition, due to which the material becomes shiny.
- It is much easier to paint the surface with conventional enamel. But the metallic must be applied perfectly evenly, because otherwise ugly spots can not be avoided.
- Metallic is characterized by a higher resistance to corrosive processes, which is explained by the presence of aluminum in its composition.
- Conventional paint is more prone to fading.
- Metallic to a greater extent prevents the heating of the cabin in hot weather( higher light reflection).
- Metallic looks more attractive.
- The cost of metallic is noticeably higher in comparison with conventional paintwork materials.
Let us dwell in more detail on the components of metallic paints:
- Pigment. It is a finely powdered powder, due to which the paint acquires a given color. Also, the pigmenting agent can perform additional functions, for example, to protect the metal from rusting.
- Binding component. This substance is responsible for the retention of the pigment on the treated surface. The bonding element also helps ensure that the coating becomes smooth and even.
- Solvent. By diluting the paint with a solvent, it acquires fluidity, which allows the composition to be applied to the surface. And the task of the manufacturer is to make the solvent evaporate as quickly as possible, since it is harmful and does not carry any other functions apart from dissolving the composition.
- Aluminum chips and dust. Another name for the substance is aluminum powder. As already mentioned above, aluminum is responsible for making the coating shine. The reason for the reflection is the ability of the aluminum powder to reflect light, which gives the impression of a glow in the coating.
Types of paints
Several types of paints are available for sale:
- In aerosol cans. Such compositions can be offered either in finished form( paint and varnish are already mixed), or in a separate version( varnish and paint separately).Both types of packaging have the right to life, but practice shows that working with separate cans allows achieving better results, since the surface will be more homogeneous. In this case, the first method is more suitable for beginners, since it is easier.
- Acrylic composition. This paint is used both for the coloring of paint, and as an independent coloring agent. Acrylic has many advantages, including good adhesive qualities with respect to any painted surfaces, as well as a rich selection of colors. It is also worth noting the safety of the solution, since it contains no harmful to human health organic solvents.
- Powder paints. This is a relatively recent invention of the chemical industry, but has already become quite popular. The reasons for the success of powder formulations lie in their consumer qualities: economical consumption, simple application technology, environmental safety, the widest choice of colors.
- Automotive paints. This is the most common version of metallic paints. You can buy such a composition in any car dealer. The application of paint is associated with technological difficulties: as already mentioned above, it is necessary to paint very evenly. However, if the work is done correctly, the surface will serve for many years, being resistant to mechanical influences and ultraviolet radiation.
Advice to the consumer! Aerosol can is the easiest way to apply paint.
Also worth mentioning are some nuances associated with the choice of color:
- White color allows you to get the effect of radiance of pearls - the cover, as it were, glows from the inside. Such a surface looks very exquisite.
- Black color looks deep and saturated. The same effect applies to any other dark tones.
- Red, green, blue - bright colors, and if they are implemented in the metallic style, the visual effect is further increased.
- Gray metallic looks restrained and solid, although the material painted with such a paint does not look as bright as in the case of silvery color.
The painting process may vary depending on the type of paint material chosen, but the surface preparation process is always the same. And it should be noted that the quality of the coating obtained directly depends on the thoroughness of the preparatory process.
- Remove the old paint, if any. We clean the surface of dust, dirt, shavings and other debris.
- We inspect the base for obvious defects( scratches, chips, etc.).We cover the defects with putty.
- After the putty has dried, take the nest and polish the surface to the maximum possible smoothness.
- Again, clean the surface of dirt and dust and apply a degreasing compound. If it is a question of metal or plastic products, the best option is an anti-silicone fluid. Other bases can be treated with White Spirit.
- Apply primer in 2-3 layers. Priming composition will protect the base from the negative impact of the environment, level the surface and create conditions for high-quality adhesion( that is, the adhesion of dissimilar materials).The primer should be chosen based on the type of substrate, but there is a rule that it must be combined with the chosen paint. It is best if both paint and primer are from the same manufacturer.
Application of a coloring material
Application of a paint material from a can - the process is relatively simple: the movements should be very smooth, and the sprayer should be kept at a distance of 25-30 centimeters from the surface.
Not so widely known technology of drawing two-component varnish. The work is organized as follows:
- First create the base layer. Insignificant defects are allowed, since one more layer will be applied from above, which should already be very uniform.
- The varnish is applied in 2-3 layers( a specific number of layers depends on the type of material and the type of varnish).
Please note! It is extremely important not to allow the drying of the substrate, so in this case it is impossible to achieve a high-quality coating.
Separately it is necessary to say about the so-called apple. The defect is the appearance of round or striped spots on the metal. Appleness occurs as a result of improper preparation of the substrate( for example, incorrect choice of primer) or a malfunctioning atomizer. Also, the cause of the appearance of "apples" can be the application of paint on a damp surface. It should be very carefully treated at all stages of the process, since in the event of an error it will be necessary to re-paint the surface with a very expensive coloring material.