Varnish for wood, polyurethane, two-component, water-based, for outdoor use

Wooden products have always been and remain in fashion. From this material you can make completely different products, it serves a long time, is natural and provides a beautiful interior in the house. However, wood requires processing. For example, in order for furniture or flooring to look good, you need to cover its surface with some kind of tool. To do this, you can apply a varnish for wood polyurethane.

General characteristics and properties of the material

This finishing substance today takes a worthy place among construction products. The varnish for wood polyurethane has in its composition two components: a hydrocolic resin (diluted with a solvent of organic origin) and a hardener. In addition, there are substances that are made on a water basis.

The varnish for wood polyurethane possesses such properties:

- Elasticity, which prevents the coating from cracking after drying.

- Resistant to moisture and abrasion.

- Save the color.

This lacquer has recently been much more often used for repair and is in high demand.

Material Advantages

Now we need to consider the merits of this substance:

1. The product is well absorbed and adheres to the surface of the wood, which makes it resistant to abrasion.

2. Protection of the product against moisture (even salt water).

3. Lack of unpleasant odor.

4. Durability and durability.

5. The ability not to accumulate a static electric charge and not conduct a current.

These advantages make the wood varnish polyurethane really effective for finishing absolutely different products.

disadvantages

Naturally, even in this case, you can not do without minuses. Among them we can distinguish such:

- Some varnishes contain organic solvents which, when applied to the surface, can adversely affect health.

- It is undesirable to use polyurethane varnish for wood for processing children's furniture.

- Substandard substances may eventually acquire a yellow tinge.

- A really good varnish can be quite expensive.

These unprincipled disadvantages can be eliminated with the help of various additives that can change or improve the properties of the varnish.

Varieties

Polyurethane varnish for wood can be classified as follows:

1. One-component. It is an ordinary liquid that can be applied directly to the surface of the wood. The agent is very simply applied and dries quickly (about 4 days).

2. Two-component. In this case, you will have to buy two packaging facilities. They are often used in the event that you want to process expensive varieties of wood. Such a varnish can reliably protect the product from damage.

3. Three-component. To apply such a tool, you need to use a spray gun. In addition, it can be applied in bulk. This varnish is able to give the surface a very beautiful and special look.

In addition, the presented material can be produced on a water basis and without it. In this case, the coating can be matte or glossy. Polyurethane water-based varnish for wood is considered safer, so you can apply it indoors, as well as for finishing children's furniture. It should also be noted that such a varnish can be self-leveling or can not.

Methods of application

One-component or two-component polyurethane lacquer for wood should be used correctly. There are several ways to apply this coating:

1. Before varnishing, the surface is treated with stain. This helps protect wood from rapid ignition, making it more durable. However, this method requires preliminary surface grinding.

2. The use of polyurethane primer, which takes several hours to dry. To make it evenly distributed over the surface, you need to use a sprayer.

3. Application of several layers of varnish. This method is not very often used because of the high cost of the facility.

Painting technology

Water varnish for wood polyurethane or other type of liquid should be applied correctly to the surface. For this, a brush, roller or spray can be used. It all depends on the type of lacquer and recommendations for its use. The technology of coating is quite simple:

1. First, carefully clean the surface: remove debris, eliminate breakage, sand, degrease.

2. Now you can start applying stain. This will not only give the wood a beautiful shade, but also display its texture. Please note that after this procedure the surface will have to be ground again.

3. Application of the first coat of varnish. Please note that it must dry well. This takes about 6 hours.

4. Application of the second coat of varnish. For its drying it is necessary up to 12 hours.

5. Treatment of floor or other surface with fine emery paper. This will give it the maximum smoothness.

As you can see, it's not so difficult to cope with such work yourself. You just need patience and time. In the same way, polyurethane lacquer for wood for exterior use is applied . Here the number of layers can be large to protect the surface from the influence of external negative influences and to ensure the beauty of the wood for a long time.

Recommendations

Working with the use of such tools requires certain conditions:

- In a room where all manipulations will be carried out, there must be a special temperature regime. That is, the air should not warm up to more than 25 degrees.

- If you process the floor, then apply the varnish from the window to the door. In this case, think about how you will leave the premises. To do this, leave uncovered stripes on the surface.

- When working with a roller, apply the product crosswise. This will ensure a smoother layer without divorce.

- The two-component composition before work should be diluted exactly with the proportions specified in the instruction.

- It is best to apply a coating with a brush. Thus, you will save yourself from breathing parts of the varnish. However, in any case, use a respirator.

- Before applying the last coat of varnish, thoroughly vacuum the surface and wipe it with a damp cloth.

- Before work, varnish needs to be diluted a little with organic solvent (by 5% when using a brush, by 15% when using a spray gun).

- For the application of a two-component formulation, it is better to use a mohair roller.

- Please note that such a tool can not be stored for a long time and quickly freezes.

Now you know how to use polyurethane lacquer. Good luck!