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Yes, Drylok paint really does work. In fact, if you need waterproof paint, then this is the perfect choice. Before you start painting, you must ensure the wall isn’t too wet. Otherwise, this will impact the effectiveness of the paint. 

So, before you use Drylok paint on your walls, you must check the wall. Simply do this by running your fingers or the back of your hand over the wall’s surface. If you draw your hand back and find it is wet, then you shouldn’t paint the wall, as the paint will not be able to do its job effectively. 

As long as you apply the Drylok paint to the wall when the wall isn’t wet, you will get between 10-15 years out of this paint. The company even offers a warranty to protect your purchase if the paint does not work properly. But this warranty really isn’t needed because this paint is highly effective. 

So, yes, Drylok paint does really work. This is why it is an excellent choice if you struggle with dampness or water problems in your walls or floor. Just ensure that the surface is not wet when you apply the paint. 

How Long Does Drylok Paint Last?

Depending on the specific type of Drylok paint you buy, the amount of time it will last varies. There are three main types of Drylok paint on the market, all with different lifespans. 

Drylok Extreme Masonry Waterproofer is supposed to last up to 15 years, Drylok Original Masonry Waterproofer is supposed to last for ten years, and Drylok Floor and Wall Masonry Waterproofer should last for at least seven years. All these products come with a warranty that protects your purchase should the paint stop working or deteriorate during this timeline. 

However, you will not need this warranty in most cases. As long as the paint was applied to a dry or only slightly damp wall, then Drylok paint will usually last for the time guaranteed to, and even longer on top. So, if you are wondering how long your Drylok paint will last, you should check the packaging for the specific type of paint you have bought. 

So, generally speaking, Drylok paint will last 7-15 years, depending on the type you have bought. However, it will usually last for longer than this if you apply the paint correctly. 

👉 Related Reading: Drylok Concrete Floor Paint Review

Is Drylok Concrete Floor Paint Waterproof?

No, Drylok’s specific ‘Latex Concrete Floor Paint’ isn’t 100% waterproof. So, if you are looking for paint that damp or surface water issues will not impact, then this isn’t the best choice. 

This doesn’t mean the paint will break down immediately when it comes into contact with water. But it does mean it will become damaged from prolonged contact with water, so you must think carefully before using this paint. 

However, Drylok does produce waterproof floor paint. This is the Drylok’ Floor and Wall Masonry Waterproofer’, and it is perfect for all types of floors and walls and guaranteed to provide waterproof coverage for up to 7 years. So, if you need waterproof paint for your concrete floor, then it might be better to consider this product over the Latex Concrete Floor paint that Drylok sells. 

But, in short, no, Drylok Concrete Floor paint is not waterproof, so you shouldn’t use it in an area continually exposed to water as it will not last.

Can You Paint Drylok Over the Existing Paint?

There is nothing stopping you from applying Drylok paint over existing paint. However, this will damage the Drylok paint's ability, especially when applied over latex or oil-based paints. So, if you want your Drylok paint to be able to do its job effectively, you should never apply it over existing paint. 

Drylok paint is chemically based, and chemicals are easily influenced. The finish of the paint itself will not be affected by the fact that there is existing paint beneath the surface. However, the physical properties of the paint will be affected, and this will stop them from being able to do their job effectively. 

Drylok paints are designed to be waterproof, which is the main reason people buy and use them. These paints can only be waterproof because of their delicate chemical design, which prevents water from breaking through the paint. 

Applying your Drylok paint to a wall that has paint on it will affect the chemicals in the Drylok paint. In turn, this will likely prevent the paint from being waterproof. So theoretically, you can apply Drylok over existing paint. However, if you do this, it is likely that your Drylok paint will not be waterproof. 

👉 Related Reading: Concrete Floor Paint Colors: Drylok, Behr, Kilz & Ideas

Can I Paint Over Drylok Masonry Waterproofer?

Yes, it is perfectly okay to paint over Drylok Masonry Waterproofer. In fact, this paint was designed to be an undercoat, making the ideal base coat for whatever color you want to paint on top of it. However, you will need to be careful when applying your top coat, as this could damage the ability of the Drylok paint if not done correctly. 

All Drylok paints are designed with a delicate chemical structure, allowing them to be waterproof. Once the paint has dried, altering this chemical structure is impossible. But if you were to apply your top coat of paint before the base coat has dried, this could prevent the Waterproofer from being effective. 

For the best results, you should leave 24 hours between applying the base coat of Drylok Masonry Waterproofer and adding your top coat. This will ensure that the base coat has dried thoroughly before you put anything on top. 

But, in short, yes, you can paint over Drylok Masonry Waterproofer. In fact, this is actually encouraged.