How long is the interval between primer and topcoat? What are the differences between primer and put

Paint construction is one of the very important links in wall decoration, which can be divided into paint base treatment and paint surface construction. Only when the two processes meet the standards can the whole wall be smooth and beautiful. In renovations, most homeowners are vague about the choice of topcoat, primer and putty.

How long is the interval between primer and topcoat? What is the difference between primer and putty? Let's see!

Normally, you can brush the first topcoat 3-4 hours after the primer is brushed, and the second topcoat can be brushed after about 2-3 hours after the surface of the topcoat is dry.

1.Primer. As the first layer of the topcoat system, the main function of the primer is to improve the adhesion of the topcoat, increase the fullness of the topcoat, and provide alkali resistance, anti-corrosion and other functions.

As a precursor to the topcoat, the primer can also absorb the topcoat evenly, so that the paint system can achieve the best effect.

2.Topcoat. The topcoat is the last layer in the entire paint system.

Its main function is decoration, followed by antiseptic. Finally, the decorative effect of the entire space depends on the final presentation of the topcoat, which is also prepared for the final effect of the topcoat. A good decorative effect requires a good finish, so the color, brightness, and adhesion of the finish are very important.

1.The topcoat should not be brushed too thickly at one time, otherwise it will cause the paint to flow and the wall will look uneven in the later stage.

2. Before painting the wall, pour the material into a large container, stir evenly, and stir continuously during use, otherwise it is easy to have uneven thickness, clumping of filler or inconsistent color.

3.If there is a gap in the wall, put a cool cloth first.

4.Before brushing the second coat of paint, remember to wait until the first coat of paint is completely dry, otherwise it is prone to wrinkles and uneven paint film.

5.When the paint on a painted wall is not dry, cover it with a lid or cardboard to prevent dust contamination and affect its appearance.

6.Be sure to buy a high-quality brush tool. If the rate of hair loss is too high, the hair of the brush will hang on the surface of the paint, which can have a big impact on the paint effect.

7.After the wall paint is painted, keep the room ventilated to ensure that the wall paint is well dried and there is no blistering and peeling.

After three or four hours, the material is completely different, the impact on the wall is also different, and the operation method is also different.

It takes three or four hours, the primer and putty are used differently, and the effect is completely different.

In the process of decoration, the interval between primer and topcoat should be at least 24h or more, the difference between primer and putty is very large, the reverse is generally used for wall leveling, and the bottom is used for leveling.

These two paints need to be spaced three to four hours apart.

After the primer is applied, you need to wait three to four hours before you can start applying the topcoat. If the time interval between the two is too short, it will affect the painting effect. In addition, for topcoats, there is a gap of two to three hours between the first and second coats, and it is necessary to wait for the first coat to dry.

Overcoats can be used indoors. Applying a layer of overlay paint to the interior wall can improve the adhesion of the wall paint and avoid the wall peeling and peeling.

Some walls are relatively alkaline, and they are easy to produce alkaline flowers after being soaked in moisture and water, so after applying a layer of overcoat paint, it can effectively close the wall base layer and make the wall base more firm, so as to alleviate the occurrence of this phenomenon. If the interior is made of art paint, apply a layer of overlay paint, which can not only protect the wall screen but also play a role in water insulation and dust prevention.

Overlay is a liquid transparent glue, also known as crystal paint or dustproof paint. Usually used for wood products, wallpaper paint, building exterior walls, etc., generally after the completion of the main paint construction, will be coated with a layer of overcoat paint, dust-proof, anti-fouling, moisture-proof role.

This kind of topcoat can play a dust-proof, anti-fouling, scrub-resistant and other functions, take the real stone paint as an example, the real stone paint coating itself is not waterproof, easy to white, and it is particularly easy to stain after a long time, but if you paint a layer of overlay on the real stone paint coating, it will make the real stone paint coating more waterproof and stain-resistant, and you can directly wipe it with a rag dipped in water when you encounter dirty places.

The interval between the primer and the topcoat of latex paint is about 4-6 hours。This is because the latex paint primer needs to be fully dried to provide a good foundation for the topcoat.

If the primer is not dry and the topcoat is applied, it will cause the topcoat to be unstable and easy to peel off, which will affect the aesthetics and service life of the coating.

However, the specific interval should be determined according to the actual situation, because the drying time of the coating will be affected by the ambient temperature, humidity, ventilation and other factors. If the ambient humidity is high or the ventilation is poor, the drying time will be longer.

After brushing the primer, you need to wait about 3-4 hours for the primer to dry completely before you can apply the topcoat. If it's a rainy day or a cold day, it usually takes 6-7 hours or more for the primer to dry before the topcoat can be applied. If the primer is applied before it dries, there will be problems such as bulging and peeling.

After the primer is applied, it takes a certain amount of time before the topcoat can be applied, but we can also shorten the interval by manual intervention. For example, you can put desiccant in the disturbing room, use a hair dryer to blow on the wall, etc., to speed up the drying of the primer. The time for the primer to dry is not fixed, and its drying time will be determined depending on the ventilation of the house, local weather conditions, etc.

For example, the dust on the primer can be blown off with a hair dryer, indicating that the surface of the primer has dried. Everyone presses the wall primer with their hands, and the wall will not have obvious indentations, indicating that the primer has completely dried.

Putty is painted three times to ensure that the wall is as smooth as possible.

The primer is the first layer of the wall paint system, which is used to improve the adhesion of the topcoat, increase the fullness of the topcoat, provide alkali resistance, provide anti-corrosion function, etc., and at the same time ensure the uniform absorption of the topcoat, so that the paint system can play the best effect.

The topcoat is brushed twice, the topcoat is the final coating of the painting, and it is the last layer to be applied in the wall decoration, and the overall effect presented after the decoration is reflected through this layer. It has the characteristics of good pollution resistance, aging resistance, moisture resistance, mildew resistance, good gloss and color retention, and good air permeability.

Generally, it is putty three times, one bottom and two sides. The putty is mainly leveling, the lacquer craftsmanship is good, and the two sides are already very flat and impeccable twice; Speaking of latex paint, if the two topcoats are finished, there are still defects, continue to brush, until you are satisfied, this also depends on the specific situation.

Latex paint brushes the wall, which can be simply summarized as "three and two sides", that is, two putty, one light polishing, two latex paint, if you have brushed one, then you only need to put on a putty.

1.Putty powder twice, the large surface of the wall is flat, and the yin and yang angle error of the top surface of the wall is less than 3mm, such as the yin and yang angle deviation of the top of the original wall.

If it is more than 5mm, the above standards will not be implemented.

2.If the original wall is hollow, it is recommended to eradicate it.

3.The latex paint is rolled twice, and the proportion of water is less than 20%.The light is polished and smooth, no powder, and no bottom.

You can also use this method for acceptance.

It depends on the wall, but also depends on how you decorate, generally speaking, the base layer is cleaned first, and then you can scrape the putty, generally 2 times.

Accurately scrape putty and scrape it a few times, and it is not particular.

Putty is to level the wall, even if it is scraped once, as long as the flatness is reached, if the wall is not flat, and then encounter a piece of craftsmanship is not good, scrape several times are in vain. After that, the light is polished, and finally the paint is painted, generally the primer is brushed once, and the topcoat is brushed twice.