Which is the best washable color
Washable wall paints for interior walls
Washable wall paints for interior walls: what to keep in mind
Washable wall paints are particularly practical for stressed walls, for example in the kitchen, children's room, hallway or stairwell. In contrast to non-washable paints (e.g. the cheapest standard dispersions from the hardware store or discounter), soiling can be removed with a damp cloth or sponge without leaving any visible stains or the paint peeling off during washing. In this way, the color stays beautiful for much longer and it has to be painted over much less often.
What are washable wall paints made of?
The washable paints are usually emulsion paints, which have a particularly high proportion of plastic. The paint's binding agent, the dispersion, consists of a large number of tiny plastic or synthetic resin particles that are finely dispersed in water and “float”. The washable wall paints, like other plastic dispersions, can also contain various additives, such as fillers or preservatives, so that the organic components in the container remain stable and the paint has a longer shelf life. There are also color pigments in white and colored wall paints. There are also transparent (i.e. pigment-free) plastic coatings that can be used to make non-washable coatings washable afterwards. Because they are often used for painted wallpaper, they are also sold under the name "wallpaper skin" or "elephant skin".
Washable paints are offered under different names, such as latex paint, acrylic paint or silicate paint. It should be noted, however, that modern latex paints no longer contain real latex from the rubber tree, but are also plastic dispersions. Polyvinyl acetate is often used as a binder in today's latex paints. B. polymethacrylate. And what is offered as "silicate paint" ready to use in the bucket is silicate emulsion paint, which, in addition to the mineral (inorganic) binding agent, potassium silicate, also contains an organic plastic dispersion. Pure silicate paints are much more difficult to process and have to be mixed from two components before application.
The stable plastic film that forms when the paint dries ensures that the coating is so easy to wash off later and also dirt-repellent. A good washable wall paint can even remove coffee or red wine stains and greasy soiling, e.g. B. Remove splashes of sauce on the kitchen wall without leaving any residue because they do not penetrate the paint. However, you should not wait too long to clean an expensive paint if it is a strongly coloring substance such as tomato sauce - it is best to wash it off immediately so that the plastic coating does not have time to discolour.
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Decisive for washable wall paints: the wet abrasion class
In the past, wall paints were classified as “washable” and “scrubbable”, some of which are still used today. However, the wet abrasion class is decisive for the cleanability of a wall paint. That is the resistance of the paint to mechanical abrasion, for example when wiping with a damp cloth or rubbing the surface. The corresponding standard is EN 13300, which has replaced or superseded the earlier DIN 53778.
There are 5 wet abrasion classes, 1 of which is the best. Wet abrasion class 2 corresponds to the previous designation “scrubbable”, class 3 corresponds to the old designation “washable”. Washable wall paints of class 3 can be wiped off or washed off with a damp cloth or soft sponge. Wall paints of wet abrasion class 2 can also withstand light scrubbing or scrubbing. Class 1 wall paints are the most robust - they can also be vigorously scrubbed with water and common household cleaning agents and washed off really wet.
In general, washable wall paints shine more than others - this is also due to the high proportion of binder and the resulting dense, closed plastic film. Many users like the silk gloss and special shimmer that makes modern latex paints so popular. In the meantime, however, there are also matt washable colors, including from Alpina and Sigma. However, the price of a high-quality, washable matt paint is comparatively high: some cost more than 100 euros per 10 liter bucket. But they can withstand a lot of cleaning without becoming thinner or unsightly. The investment is therefore worthwhile for walls that are particularly stressed and stressed, which would otherwise have to be repainted several times in the same time with great expenditure of time and money.
Are washable wall paints open to diffusion?
Openness to diffusion means water vapor permeability. Colors that allow water vapor to pass through are often referred to as "breathable" because they absorb moisture from the room air and can release it again when required. Many washable paints are advertised as being breathable and not sealing the wall. Compared to the real latex paints that were used in the past, which provided the wall with a waterproof rubber coating, modern emulsion paints actually allow more steam to pass through, but emulsion paints are not open to diffusion in the sense of a pure mineral paint.
However, this does not mean that the paint represents a particularly high risk of mold - in rooms that are used normally, that are subject to normal moisture and that are regularly ventilated, washable emulsion paint is not a problem. You can also use it to paint the bathroom - just make sure that the walls, for example, are B. have become damp from the steam while showering, can dry quickly with sufficient ventilation and, if necessary, heating. Ventilation and heating are the best mold protection. On the other hand, wall paints that contain fungicides or other toxic chemicals to protect against mold should be viewed critically: The effect does not last long and the toxins get into the air and pose an unnecessary health risk - not only for allergy sufferers and asthmatics.
Can washable wall paints be painted over?
Yes - and ideally again with similar products. In contrast to traditional latex or rubber paints, which are practically impossible to paint over because the new paint does not get hold of the smooth, waterproof surface, today's washable paints can usually be painted over without any problems. High-gloss, very dense surfaces can be roughened beforehand with a sanding fleece or sanding sponge and / or primed with a primer / adhesion promoter in order to optimize the adhesion before the new coat of paint. In addition to transparent, pigmented primers are available on the market for this purpose. These also improve the color coverage, for example if a colored wall is to be painted over with white or another bright color.
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