Why do I need to re-scrape putty before applying latex paint?

After applying the latex paint, I turned on the light and found that the wall was uneven and very ugly. I asked an acquaintance about the situation, and they told me: Who told you not to ask the workers to scrape off the putty~

After this experience, I realized that painting latex paint seems to be a simple task, but it is actually a meticulous job. Every step must not be missed, especially the puttying process. The quality of the workmanship directly affects the subsequent presentation of latex paint. Effect.

What is putty?

Simply put, putty is a material used to treat the base layer of walls.

Why do you need putty?

Improve adhesion: Putty serves as the bonding layer between the base layer of the wall and the paint. Using it to level the wall can enhance the adhesion and adhesion between the wall and the upper layer of paint (such as latex paint, environmentally friendly paint, etc.) and reduce the risk of shedding. risk of falling.

2. Avoid pores: The wall surface of the rough house is relatively rough. If putty is not used for leveling and priming in advance, the wall surface will not only be uneven, but also small hole-like black spots will appear on the surface. Even if you use high-quality latex paint, having many holes in the wall can easily affect the aesthetics of your room. Applying putty can seal the pores on the wall and lay a good foundation for the application of primer and topcoat, making large areas of paint smoother and more beautiful.

3. Reduce waste: Compared with the walls that have been puttyed, the walls that have not been puttyed have low adhesion and consume a lot of paint when painting. Generally, it needs to be painted one or two times more, which is a waste of material. Therefore, the process of putting putty is very necessary for the ease of construction and the overall effect.

Does the original putty need to be removed?

When decorating a rough house, you definitely need to apply putty first and then apply primer and topcoat. But if it is a second-hand house or an old house being renovated, you need to consider whether the original putty needs to be removed and repainted. Theoretically, you need to consider the quality of the original putty before deciding whether to keep it or repaint it.

How to identify the quality of putty?

According to regulations, the putty used for interior wall decoration must be water-resistant putty. However, in order to save costs, some decoration companies may choose ordinary putty. This kind of putty is not only low in environmental protection, but also has poor durability. It is easy to mold and fall off after being used for a long time. It is recommended to purchase water-resistant putty powder by yourself (or online). It has high viscosity, good waterproof performance, strong friction resistance and long service life.

How to apply putty correctly?

Anti-rust coating should be applied to the nails, and textured paper should be added to the joints.

Where cabinets need to be installed indoors, it is recommended to use the vertical leveling process, and other areas can use the smoothing process, which can improve the cost performance.

When applying putty, you need to scrape it at least 2-3 times, and each pass must be completely dry before proceeding to the next pass to ensure that no problems occur. In addition, putty cannot be applied in rainy and humid weather.

The joints between the new wall and the ceiling need to be hung with netting in advance.

Gaps in the ceiling should be sealed with caulking plaster to strengthen and prevent later cracking.

Conclusion

In short, good paint needs to be matched with good putty to achieve perfect effects on the wall. During the painting process, you must pay attention to details to avoid spending a lot of money only to ruin the wall.