What Is Crystalline Waterproofing?

Waterproofing is an important process for every building as it helps to protect it from water damage and maintain its structural integrity. Regardless of the function of the building, infiltration can cause significant problems such as mold growth and structural damage. That's why it is so important to choose the right waterproofing solution to ensure long-term protection against water and other liquids.

In today’s article we have prepared as Baumerk, construction chemicals specialist, we will answer questions such as what is crystalline waterproofing, where is it used and what are its benefits. Whether you are a construction professional, property owner, or simply interested in learning more about waterproofing solutions, our article will provide you with valuable information about the advantages of using crystalline waterproofing for your next project!

You can also take a look at our content titled Things to Know About Basement Waterproofing to understand the importance of waterproofing before moving on to our article! 

What Is the Purpose of Crystalline Waterproofing Admixtures?

Crystalline waterproofing is an innovative product used in the construction industry and represents a unique method of waterproofing. This type of waterproofing is a concrete admixture that is added directly into the concrete mixer, forming a barrier against water within the concrete itself.

Unlike other waterproofing solutions such as surface-applied membranes or coatings, crystalline waterproofing penetrates into the pores and capillaries of concrete and masonry materials. Once the material penetrates the surface, it reacts with water and chemicals present in the concrete to form microscopic crystals that grow and expand within the concrete matrix.

As these crystals continue to develop, they fill voids and micro-cracks, effectively preventing further water ingress. This process not only creates a watertight barrier but also strengthens the concrete, making it more durable and resistant to water damage over time.

Crystalline waterproofing remains active during the curing process and becomes reactivated every time it comes into contact with water. It fills the capillary voids within the concrete with insoluble, nano-sized crystals, providing continuous impermeability. Each exposure to water further enhances the concrete’s waterproofing capabilities.

Crystalline concrete admixtures are suitable for a wide range of applications, including foundations, basements, tunnels, swimming pools, and more. As an eco-friendly and easy-to-apply waterproofing solution, their popularity has significantly increased in recent years.

Concrete structures prepared with crystalline waterproofing admixtures provide effective and long-lasting protection without the need for additional waterproofing materials. Crystalline waterproofing admixtures protect concrete against both positive and negative water pressure, enabling reinforced concrete structures to resist water intrusion from soil as well as external environmental sources.

Where Is Crystalline Waterproofing Used?

Crystalline waterproofing for concrete creates a waterproof barrier that makes the structure impermeable every time water comes into contact with the concrete. For this reason, crystalline waterproofing materials can be used in many areas where water infiltration may occur. The main application areas of crystalline waterproofing include:

How to Apply Crystalline Waterproofing?

Crystalline concrete admixtures are available in liquid or powder form. Its application is easily made ready by adding it as an additive material before concrete pouring. If the application is to be made at the construction site; crystalline concrete admixture is added into the concrete ready to be poured in the concrete mixer at the rate of 2% of the cement weight and mixed for about 5 minutes without delay. 

If the application is to be made in the concrete batching plant, the crystalline concrete admixture product is added to the concrete mix water and this mixture is added to the concrete as the last component. The active working time of the product is approximately 45 minutes after it is added to the mixture.

Where is Crystalline Waterproofing Used?

Crystalline waterproofing is a product that creates a waterproof coating, making the structure watertight whenever water comes into contact with concrete. For this reason, crystalline waterproofing materials can be used in many areas where water can seep in.

1. Roofs

Roofs are one of the places where most water accumulates and can seep in during rainy weather. Crystalline waterproofing materials are an ideal solution for protecting roofs against water. Crystalline waterproofing ensures the longevity of roofs and prevents water leakage, moisture, and fungal formations that may occur on roofs.

2. Basements

Basements are another place where water can seep in. Crystalline waterproofing materials protect the structure in basements against water that can be exposed from inside and outside. Thus, it protects the structure from the foundation. 

3. Terraces

Since terraces are in open areas, water leakage can be a problem in rainy weather. Crystalline waterproofing materials ensure that terraces are protected against water and last longer.

4. Wet Areas

Wet areas such as bathrooms and kitchens require a waterproof coating. Crystalline waterproofing materials are used in wet areas to prevent problems such as water infiltration and moisture formation.

What are the Benefits of Crystalline Waterproofing?

There are various benefits of using crystalline waterproofing in all types of building projects.    Due to its special formulation, when the concretes to which it is added as an additive material come into contact with water, they form a crystalline structure spontaneously, filling the capillary spaces in the concrete and creating a waterproof structure. Let's take a look at the most important of these benefits!

1. Long Lasting Protection 

Long-lasting protection is one of the most important benefits of using crystalline waterproofing. When applied correctly, it can provide an impenetrable barrier to water and other liquids for the lifetime of the concrete or masonry structure. 

This is because once applied, the crystals that form continue to grow and expand within the concrete, effectively filling any gaps or cracks and preventing water from passing through. This process creates a permanent waterproofing barrier that does not degrade over time, providing long-lasting protection against water damage and making crystalline waterproofing an ideal solution for structures.

2. Durability

Durability is another important benefit of crystalline waterproofing. In the projects where it is applied, it can help to extend the life of the structure and increase its overall durability.

As we mentioned earlier, microscopic crystals that grow within the capillaries of the concrete after the application of crystalline waterproofing fill gaps or cracks in the concrete, effectively protecting it from water and other liquids and increasing durability.

3. Affordable Cost

Although the initial cost of crystalline waterproofing is higher than other waterproofing methods, it provides cost savings in the long term by reducing the need for maintenance and repair.

4. Easy Application

The fact that it is also easy to apply means that construction professionals can complete the waterproofing process quickly and efficiently, reducing labor costs and project timelines. In addition, crystalline concrete admixed products do not require additional waterproofing, making them easy to apply.

5. Environmentally Friendly

Another important advantage of crystalline waterproofing is its environmental friendliness. It is a non-toxic and sustainable solution that can help reduce the environmental impact of construction projects. It does not release any toxic fumes or harmful substances into the air, making it a safer option for both workers and the environment.

Disadvantages of Crystalline Waterproofing?

Crystalline waterproofing systems provide a reliable water-resistant barrier, similar to other types of waterproofing methods. However, crystalline waterproofing for concrete materials can be more brittle under high dynamic pressure compared to alternative waterproofing products. In addition, as the name suggests, crystalline cementitious crystalline waterproofing is not effective on surfaces such as wood, plastic, or metal.

To achieve maximum performance from the system, it is essential to choose a high-quality waterproofing admixture for concrete, ensuring proper compatibility with the concrete substrate and optimal waterproofing behavior.

Although crystalline waterproofing is an effective solution for many construction projects, it may not be suitable for every situation. When selecting the most appropriate waterproofing method, factors such as the structure type, severity of the water problem, and climate conditions should be carefully evaluated.

In summary, crystalline waterproofing for concrete products offer an efficient and long-lasting method for protecting structures. They work by forming an internal barrier that prevents water from penetrating through the concrete. With benefits such as long-term durability, enhanced structural protection, and cost-effectiveness, crystalline waterproofing is becoming an increasingly popular solution for modern waterproofing requirements.

For your construction waterproofing needs, you may explore Baumerk’s specially developed products within its construction chemicals range, including  Crystalline Waterproofing Powder Concrete Admixture -  CRYSTAL PW 25, a powder-form waterproofing admixture for concrete, and Crystalline Waterproofing Liquid Concrete Admixture - CRYSTAL C 320, a liquid crystalline admixture designed to create a strong crystalline cementitious crystalline waterproofing effect.
Also, let us remind you that you can contact Baumerk for any questions you may have!