If you have an in-ground pool in your backyard that is formed out of concrete, then you probably are the most concerned with the cleanliness of it. While this is extremely important for your pool to be usable all summer long, there are other maintenance concerns you need to think about. Making sure the concrete is properly covered with paint is one of these things. The concrete is painted, because it is porous and will absorb some of the water from the pool. This can cause deterioration and erosion issues over time. Also, most pools will contain chemicals, like chlorine, that can cause the concrete to break down. To make sure the paint protects the concrete properly, you will need to pick one of the three most common types of pool paint. Find out about these paints, so you will understand which one will fit your needs.
Epoxy paint is often considered the best pool paint you can buy. This paint contains epoxy resin, which is a polymer that can resist corrosion, abrasion, chemical degradation, and UV ray damage. Epoxy cures both hard and thick, so it is likely to last quite a long time and resist chipping. Epoxy is expensive though, and you should know that you will need to spend a good deal of time preparing your pool so the epoxy sticks and cures properly.
Preparation means sanding away old paint, acid-washing the surface, cleaning again, and then waiting for the concrete to dry completely. Also, the paint can be difficult to remove if it spills or accidentally gets on your skin or clothing. Since preparation is so intensive and the paint is expensive, it is wise to hire a pool professional to add the paint to the concrete for you.
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Chlorinated rubber-based swimming pool paint is another paint variety that is extremely resistant to chemical erosion and UV ray damage. The paint is not as hard as epoxy paint though, and this means it will not last as long. The paint is also not as expensive due to this fact. The rubber-based paint is easier to apply than epoxy, so you can add it to your pool by yourself if you desire. A regular roller or paint brush can be utilized, since the paint acts much like acrylic paint as it is applied to the concrete. The paint is also quite elastic and covers holes and other types of uneven surfaces. You still should scrape your pool and acid-wash the surface to degrease it properly, though, so that the paint will stick.
However, If you are concerned about the environment, then you should probably stay away from rubber-based paint varieties. The chlorine compounds in the paint can leach into the environment and cause toxicity issues with fish and other wildlife.
Acrylic paints are by far the cheapest and easiest paints to apply to your pool. The paints can be added to concrete that is still wet, and it also will not have as many issues sticking to the concrete if it is not completely clean. The paint will usually dry quicker than the other options, so you can get to using your pool in a timely manner. However, the water-based paint may stain over time, and it will succumb to chemical erosion and some UV damage. This means that the paint is not likely to last very long and you will probably need to repaint within a few years. This is probably the last option you should choose if you are concerned about paint chips and other damage. However, if cost is a major concern, then this paint is better than leaving the concrete exposed.
To make sure your acrylic paint lasts as long as possible, consider finding a light-colored variety that will not absorb the sun's rays as aggressively. Also, there are some paints that are called premium acrylics. These paints have been created to take the place of environmentally unfriendly chlorinated paints. The paint usually has some rubber compounds in it, but it does not contain the chlorine.