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- Pre -study of the surface
- Removing paint
- Surface preparation
- Video on the topic
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Pre -study of the surface
Oil- and water-based paints and enamels are typically used to cover the surfaces found in homes and apartments. It’s not always necessary to remove such a coating completely. Do not spin; the old layer can cling very well. You must therefore determine whether to take any action at all before moving forward with drastic measures. If you use a straightforward checking technique, such as running a well-wet cloth along the painted wall, you can make sense of this. What’s visible:
- The coating will start to “wash off”. Traces will remain on the rag, layers will start to peel off. All these signs indicate one thing – water-based paint was used. It is easily removed under the influence of water. If you apply putty on it, you will get the same thing. Namely, the solution will simply fall off. The work will go down the drain. To put it simply, you will have to remove everything and redo it again. The worst thing is when this happens during wallpapering.
- There may be another option. The surface will not react to the influence of water. This means that this is a paint based on drying oil or solvents. Such materials are not afraid of high humidity. It is not scary to apply putty on them. Although even here, not everything is so simple. The painted layer should adhere very well.
This was the easiest way to make sure. However, you should do additional surface studies before you begin. In order to accomplish this, you must tap the walls and ceiling to cause the subpar coating to peel off. An additional tool that is used is a specialized spatula that was created especially for removing paint materials. Its sharpened side makes it possible to pry up bubbles and peeling edges.
Removing paint
Water is an easy way to remove water-based paint, as was previously mentioned. The surface must be properly dried after it has been fully cleaned. With oil solutions and enamels, the circumstances are different. To get rid of these compounds, there are a few different approaches. These are the following:
- Mechanical method
Special tools and electrical devices are used to remove the coating. This method requires a lot of physical force. It leaves a lot of dust and dirt. It is advisable to wear a respirator and protective glasses for work. - Chemical method
Apply special chemical reagents. They are applied to the painted surface. Under their influence, the layer is destroyed. Work is performed in protective clothes, gloves and glasses. - Thermal method
Using a construction hairdryer. Under the streams of hot air, the paint begins to rise. It is easy to clean.
What you must ultimately obtain? If the painted areas are still there, it’s not scary. Making sure there is no detachment is the most crucial step. To prevent bloating and swelling, the areas where the old layer will remain should be thoroughly cleaned. Then you can apply the paint without fear.
Although applying putty directly over paint can be challenging, it is not impossible if done correctly. To ensure proper putty adhesion, the paint surface must be thoroughly cleaned, lightly sanded, and free of any glossy or peeling areas. If you can’t remove the old paint, experts usually advise doing so as these steps can help create a smooth, long-lasting finish.
Surface preparation
They must be ready before installing the ceiling and walls. Any surface needs to be thoroughly cleaned to remove all dirt, debris, and paint residue. If oil stains are present, a soap solution is used to get rid of them. It’s possible that the coating’s integrity was compromised during the painting process. That is, there were chips, cracks, and potholes. They must be fixed.
It’s critical to remember that priming is a crucial stage at all times. It is important to remember this procedure because painted surfaces are all extremely smooth. The putty mixture’s maximum adhesion to the painted portion of the wall can only be guaranteed at that point. Additionally, this will strengthen the previous coating. If you ignore it, the solution will eventually come off. Putty won’t lie on paint, in other words.
A little about the primer! This solution is very often mentioned, but it is not always clear what benefit it has, what its action is based on? Everything is quite simple: being a liquid base, this composition penetrates the pores of any surface. It contains a filler, this is quartz sand (very fine fraction). At a time when the liquid penetrates the pores and clogs them, thus, not allowing to penetrate deeply the main composition (wallpaper glue, varnish, etc.p.), while reducing its consumption, the sand forms a fine roughness, which ensures high adhesion of the applied composition. And also strengthens the surface on which the primer is applied.
The painted surface needs to be treated further in large areas. You can’t just apply a primer over them. The lack of pores and an excessively smooth layer hinder this solution’s ability to function. Use the following methods to achieve this:
- The wall, ceiling are covered with scratches. This can be done in any order, using the edge of a spatula or a knife.
- The surface is simply "rubbed". For this, take sandpaper or an iron brush.
Question | Expert Advice |
Can you putty over paint? | Yes, but the surface must be properly prepared to ensure adhesion. |
How should you prepare the surface? | Clean the wall, sand it lightly to create a rough texture, and remove any peeling paint. |
What type of putty should be used? | Use a high-quality, flexible putty designed for painted surfaces. |
Is priming necessary before puttying? | Priming can enhance adhesion, especially on glossy or difficult surfaces. |
Putty over paint can be a workable solution in many situations, but it needs to be carefully prepared. To ensure a solid bond between the putty and the underlying paint, it is important to make sure the painted surface is clean, dry, and properly primed. Ignoring these steps could result in poor adhesion, which would eventually cause the putty to peel or crack.
You can usually putty right over paint that is in good condition, which is defined as not flaking, chipping, or peeling. But for optimal results, sand the surface lightly to improve putty adhesion. This stage is especially crucial for glossy or semi-glossy finishes because they can make it harder for the putty to adhere.
It might be wiser to remove the paint before applying the putty in cases where the paint is in poor condition or you’re not sure if it will hold up. This additional work guarantees a strong base for your wall finish, which will ultimately produce a more polished and long-lasting finish.
Putty over paint is technically possible, but how well it goes will primarily depend on how well-prepared the painted surface is and how well-maintained it is. You’ll avoid future headaches by taking the time to thoroughly inspect and prepare the wall.