How to brush the doors and windows with paint so that they do not fade

With my many years of experience in painting, I have the following two ......First, the paint must be good (such as the Heavenly Maiden, Pentium) Second, the paint base should be scraped with putty (that is, putty prepared with paint).

Why can't the paint brush the doors and windows to carry the banquet 1, if the surface of the wooden door is damaged, such as a crack or a hole in a certain place, you should first fill the hole with putty, and then polish the sandpaper. If the base layer is not damaged, consider painting it directly. The correct process is to polish the original wooden door with sandpaper and directly brush the refurbished paint.

Because the finished door is generally waxed, there will be grease on the surface, and after polishing, it can improve the adhesion of the paint. There is no difference in quality between refurbishment and first painting, so you don't have to worry about shorter life or other quality problems. 2. The doors and windows were originally oil-based paint or water-based paint, and the same kind of paint should be used when renovating, otherwise the quality will be very poor.

Brush paint needs to pay attention to the following points, it is not easy to fade:

1. First of all, the bottom putty is polished and smoothed, and it must be polished under the side light.

2. Brush the primer, if it is waterproof putty, you can use an alkali-resistant primer.

3. You can apply the topcoat twice.

4. Brush the glossy topcoat, which can make the color of the topcoat brighter.

It may be because the surface is too smooth. If the original paint is varnish or powdery (with untreated colorant paint), the new paint will not stick firmly to the surface. Or it may be that the wood is rotten or the metal has rust spots, or it may peel off due to poor paint quality.

For small areas of paint peeling, you can first sand with fine sandpaper, then apply putty, brush with primer, and then repaint. Extensive peeling must be scraped off and repainted.

There are several reasons for falling off the paint:1The quality of the paint itself is a problem 2

The material of the door does not match the paint (the type of paint required for the wooden door, iron door and galvanized door is not the same) because the paint will slowly age when in contact with the atmosphere, if the light is too strong and the moisture in the air will destroy the adhesion between the paint and the door, so that the paint is more likely to crack, warped and slowly fall off. If it is an iron door, it is best to use baking paint or PU polyurethane paint; It is best to paint the wooden door with a layer of protective transparent paint after painting, or directly brush it with PU polyurethane paint (before construction, the door needs to be pre-treated, dusted or greased, etc.). Moreover, the wood of the wooden door is completely dry, and the moisture content of the wood is too high, which will affect the adhesion.

Protect from the sun and use a little better in particular

The paint base layer should be handled without dust.

It's too simple, the surface of the wood is ground off with an angle grinder, and then the putty is scraped, and the polishing and polishing brush is twice (it is best to buy canned paint spray to look good), and the rust removal of iron is still brushed with a steel wire bowl on an electric angle grinder, polished to the white of the existing iron, and then the red dan is used again, and the top coat is twice. Oh steel structure practice, electric angle grinder more than 100 points. After brushing the paint, a bucket is not enough, and then buy and sprinkle.

Personally, I recommend finding a painter to do it.

If you do it yourself, pay attention to a few questions.

Putty, it is best to use varnish and gypsum powder to modulate, adjust a little with a little, use a scraper to flatten the paint directly to buy blended paint, don't think too much, you can buy it in the paint store, you also need to buy a piece of diluted water, add it to the paint, the standard is when the brush paints, there is no jerky brush does not move the feeling is almost, at least brush twice, after the first brush, wait for the natural drying, and then grind the problematic place with sandpaper, and then brush the second time.

**It's a matter of dozens of dollars...

On the radiator, polish with sandpaper of more than 360 meters, gently grind it, apply anti-rust paint, and then brush the excess paint on.

During all operations, pay attention to cleanliness.

Many friends who have bought second-hand houses will renovate the doors and windows, floors, walls, etc. of the house, in order to improve the renovation effect, they will generally apply refreshed paint on the old windows, so what is the trick of painting the old wooden windows? Let's learn with me.

1. If you want to paint on the old wooden windows, then it is best to use the traditional painting method to paint, which is to use a brush to paint the old wooden windows. However, before painting, you should use sand skin to clean the loose paint layer on the old wooden windows before starting to apply fresh paint.

2. When applying refreshed paint on the old wooden windows, be sure to use the paint with the same properties as the original paint, if the properties of the two paints are different, it may lead to a chemical reaction between the two paints, resulting in poor paint decoration effect.

3. Before painting on the old wooden windows, be sure to check in detail whether the surface of the old wooden windows is damaged, if there is damage, then you should first use putty to repair the damaged position, and then use sandpaper to polish the surface of the wooden windows, and then apply a refreshed primer and topcoat on the old wooden windows.

4. If there is no damage on the old wooden windows, then you can directly apply refreshed paint on the old wooden windows. Before painting, you need to sandpaper the surface of the old wooden windows to improve the adhesion of the paint, and then apply the fresh primer and topcoat directly.

5. Before painting on the old wooden windows, be sure to observe the color of the old wooden windows in detail. Under normal circumstances, if the old wooden windows are used with dark clear oil, then when applying fresh paint on the old wooden windows, you must not use light-colored paint, because light-colored paint generally cannot completely cover the dark clear oil, which will inevitably affect the decorative effect of the paint.

The above is all about what the old wooden windows paint tips, I hope it can help those who need to renovate the old wooden windows.