Over time, any surfaces that have been painted can change their color. This is affected by temperature extremes, heavy rainfall, sunlight and other factors. In order not to fade the paint on the facade of the house or indoors, you need to pay special attention to the preparation of the base and the choice of paint material. We will tell you more about this.
Causes
The main reasons why premature or excessive burnout can occur:
- The use of low-quality materials, which leads to rapid destruction and chalking of the coating.
- Failure to follow manufacturer's recommendations, use of unsuitable composition. For example, painting external surfaces with material intended for indoor use.
- Bright colors are more prone to fading. Shades of blue, red, yellow lose their saturation faster.
- The content of organic pigments in the composition also accelerates bleaching.
- Incorrect tinting, lack of primer and other mistakes made during painting.
These reasons only accelerate the fading process. In general, color change is an inevitable phenomenon to which all types of paints are subject to varying degrees.
The main catalyst for this process is sunlight. The rays of the sun, falling on the surface, violate the chemical bonds between the molecules, as a result of which the coloring pigment is destroyed, and the shade becomes less bright.
to contents ↑How to avoid
In order for the painted walls to maintain their brightness for more than one year, adhere to the following recommendations:
- Use paints for their intended purpose: for exterior work - facade, for interior - interior.
- No need to save on paints and varnishes. Good paint will not only delay fading, but also provide the necessary degree of safety for health.
- It is worth abandoning tinting, it is better to buy ready-made colors, as they are less prone to burnout.
- Before applying the coloring composition, it is necessary to carefully remove the old coating, otherwise over time it can "eat" the brightness of the new layer.
If the paint on the surface has already faded, it will not be possible to restore saturation without re-painting.
What paint to choose
The modern building materials market offers a large selection of paints, each of which has certain characteristics. So that the wall covering does not fade in the sun under the influence of ultraviolet radiation, choose acrylic or silicone compounds. They are suitable for all types of work, they have a long service life, they fit well even without additional primer.
Acrylic
Compared to other paints, acrylics are less prone to fading. They dry quickly, have no unpleasant odor, and are suitable for different surfaces: concrete, metal, wood. The composition does not contain toxic components, only pigment, water and a binder - a polymer.
Silicone
Silicone compounds also do not fade under the influence of the sun, maintaining their saturation for a long time. Wall decoration with this material will protect the surface from pollution and the influence of various natural factors.
The coating has a porous structure due to the content of silicone resins. Such a basis provides good air circulation and unhindered removal of excess moisture.
Aluminum powder paint
A UV-resistant mixture can be prepared on your own. We recommend using aluminum powder as a basis, which will reflect sunlight and prevent surface overheating. The powder must be diluted with epoxy resin, and to achieve the desired consistency, you need to add a solvent.
As a result of fading, not only does the appearance of the wall worsen, but the protective coating layer is also violated. To avoid unpleasant consequences, it is enough to choose the right paint and observe the technology of its application.
