Can I apply the putty on water-based paint?

Virtually any repair begins withleveling the walls before their subsequent finishing. But what if the surface was painted? Can I apply the putty on the paint or do I still need to clean the wall?

Study of surface properties

In order to find out whether it is possible to apply the putty on the old paint, it is necessary to determine its variety. There are several main varieties:

1. If the painted surface is in contact with waterthe paint began to bubble and wash off, which means that the walls were covered with water-based paint. Can I put a filler on water-based paint? Under the influence of moisture, the paint layer is destroyed and washed away, so the applied putty, which also contains water, simply will not hold.
2. If the surface is smooth and shiny, and also notreacts to contact with water, it means that the walls are painted with paint on the basis of drying oil or solvents. Can I apply the filler on oil paint? There is no single answer to this question. The fact is that you can apply the putty on the old paint, which still holds, but if there are chips, cracks and blisters on the surface, the wall surface will have to be cleaned.

The difficulty is that even if the firstThe view of the oil-covered wall looks holistic, it still requires a thorough check for chips. For this, the surface is gently taped and probed with a special spatula to detect air bubbles under the paint.

Putty on acrylic paint

Acrylic is not as popular asthe above-described varieties of paints. However, it is also used for wall finishing. Can I apply the filler on acrylic paint? A coloring pigment based on acrylic is as durable as its oil counterparts.

To ensure good adhesion to smooththe surface of the painted wall should be applied a layer of soil with fine abrasive particles. They penetrate into the pores and irregularities on the paint than create an optimal rough surface for good adhesion with the subsequent putty.

How to remove old paint

In most cases, the old coating is to be removed. There are several ways to do this:

1. Water emulsion paint is thoroughly washed off with water, after which the surface of the wall must be well dried before applying putty or other finishing materials.
2. Mechanically, the oil paint is removed. It is a scraping surface using special tools. This method takes a lot of time, leaves a lot of dust and dirt. It is recommended to use personal protective equipment - glasses and a respirator.
3. The chemical method is the use of specialreagents that destroy the paint layer. Often used substances that can harm a person, so it is recommended to carry out all manipulations in gloves, glasses and a respirator.
4. The thermal method involves heatingpaint surface by building hair dryer. As a result, the coating will begin to separate from the walls, and it will be fairly easy to clean with a spatula and other tools.

Experienced builders recommend the maximumcarefully scrape off the old coating from the walls. If spots of paint remain in places, you need to make sure that they do not have blisters, because in this place, the detachment of the putty will necessarily occur. In addition, such areas should be carefully sanded to create a rough surface.

Materials and Tools

Can I apply the putty on the paint? It is possible, only in this case it is important to choose suitable building materials and tools:

1. Finishing works on the paint are carried outFinish putty, which has a fine fraction and is applied in a thin layer. This is necessary in order to get an ideally smooth and smooth surface of the wall at the output.
2. It is recommended to use gypsum or acrylic putty. It meets all the necessary requirements.
3. To mix the composition, you may need a plastic bucket and a drill with a mixer attachment.
4. Coarse sandpaper is used for sanding the surface of a wall.
5. A small spatula is needed for scraping paint, which is unstable on the surface of the wall.
6. A large spatula is required for applying layers of putty.

When choosing a spatula, you need to pay attention to the fact that its blade should be perfectly even, and also slightly elastic for the convenience of applying the composition.

Surface preparation

The surface, cleaned of the old paint,it is necessary to prepare for applying putty. To do this, you should inspect the wall to detect dirty spots that need to be washed off. Then the surface must be primed to ensure good adhesion of the putty with the wall.

If you can not get rid of the paint, you should use the following methods:

1. A smooth painted surface does not adhere well to the putty, so you should make a notch on the wall with a knife or other sharp tool.
2. In some cases, builders recommend cleaning the surface with an iron brush or sandpaper to create a roughness.

Any of the chosen methods guarantees a good result.

Application of soil

The use of a primer to obtain a qualitative result is simply necessary. It must be applied to the surface of the wall before the beginning of the putty. Also can fix a layer of putty.

Experienced builders recommend usingquartz primer, which has large fractions of mineral impregnations in order to create an ideal surface for fixing on the wall putty. Finish primer, which is applied to the putty before the subsequent finishing, is used with smaller fractions in order not to stand out too much against the background of a smooth wall.

Putty on paint

Can I apply the finishing coat on the paint? Such an option of finishing works is acceptable, but one should adhere to these recommendations:

1. When preparing the surface for puttying, it is necessary to clean the wall of dirt and dust, as well as sand the surface, which could not be cleaned from the paint.
2. The thickness of the layers of the putty putty should be minimal. This is also indicated by the manufacturer on the label.
3. It is recommended to apply a layer of soil before the puttying agent.
4. If in some place it began to lag behind the paint, it means either a poorly prepared surface or a too thick layer of applied material.
5. It is important to give sufficient attention to drying the mixture before continuing the finishing work.
6. At the end of the puttying, it is necessary to coat the surface again with a primer.

Often, for these purposes, concrete contact is used. This is the name of the building material. which contains large particles, as well as substances, their binders. This type of putty firmly holds on the wall for many years, and also does not absorb moisture. Many people who decided to carry out repairs on their own, are interested in the question: can I apply the putty on the paint? Answer: you can, if you follow the recommendations mentioned above.

Car shampoo

Putty is also used for repaircars. Of course, this is far from the material that the walls are shpaklyuyut, but this raises the same question: can I apply the putty on paint cars? Doing this categorically is not worth it, this design will not hold and will disappear immediately after drying. It is important to remove the paint layer from the machine and clean the area to bare metal. Only after that, the car is ready to apply putty.

Conclusion

Can I apply the putty on the paint? Coloring pigments are a fairly common finishing material, but with subsequent repairs can bring some inconvenience. Puttying painted walls, of course, you can, but before that you should study the condition of the paint, as well as try to at least slightly remove it. Especially this applies to those places where, from time to time, the coating began to separate from the surface of the wall.

The difficulty may be that the putty is notwill want to lay down evenly on the paint, even if it is pre-prepared in accordance with all the rules. In this case, a construction grid with small divisions is used, which is fixed to the wall. On such a grid the putty is well retained even when a fairly thick layer of material is applied.

Repairs are always complexities and unforeseen circumstances. Therefore, when laying the painted surfaces, it is worthwhile to prepare for additional costs, if something goes wrong.

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