Wooden surfaces look great, and properly selected varnish for wood for outdoor work will make them even more beautiful and also protect them from the mass of external influences. Due to the huge variety on the market, there is often a problem with choosing the right mix. Let's consider the requirements that are presented to him.
In fact, wood varnish for outdoor works is a solution of substances that are capable of forming a protective layer on the treated surface in the form of a thinnest film. However, not every lacquer is capable of protecting wood. So, you can consider the basic criteria for its selection. First you should talk about wear resistance. At the moment, the compositions that differ in their strength are presented. They are usually used as a protection for floor coverings, which are under heavy load from constant friction and walking. The second important point is the time of full drying. And then you have to choose wood varnish for outdoor works among traditional compounds that can dry up to 30 hours, and quick-drying, which will allow you to complete the work in one evening. Nitro- lacs dry faster than water-based formulations.
Another parameter is toxicity. At the moment, most varnishes are characterized by an unpleasant odor, which is due to the presence of solvents in their composition. Their use in a residential area can cause severe headaches. In this case, it is better to choose a water-based formulation. The degree of gloss is the parameter whose choice depends solely on your preferences. The wood varnish for exterior works can give a beautiful gloss to the surface or make it matte. Fire safety - a parameter that depends on how much the surface to be treated is exposed to high temperatures. Heat-resistant composition should be purchased in the event that the risk of fire is high.
It is worth paying attention to the method of applying varnish: whether it is possible to apply a coating directly to wood, or it must be pre-treated with a primer. This criterion can not be called the main one, since the first variant is most often found on sale, but it is worthwhile to pay attention to it.
The degree of influence of external factors is the main criterion of choice. If the wood is in the open air, subjected to intensive irradiation with UV rays, is not protected from precipitation and other phenomena, it requires a special lacquer. The qualitative composition will allow the material to withstand numerous moisturizing-drying, as well as frost and heat. Acrylic varnish for wood in this case will not work, as it quickly cracked, yellowed, and its surface will lose an attractive gloss. Experts say the need for the presence of components in the varnish that protect against ultraviolet radiation.
So, now you know how to choose a varnish for a tree, the colors of which can be quite diverse.