Crystalline waterproofing is a specialized method of protecting concrete structures from water penetration. The crystal network is formed by a chemical reaction between the active ingredients in the waterproofing agent and the moisture within the concrete. The result is a network of microscopic channels and pores filled with crystals, effectively sealing the concrete from water penetration. This technique is applied on different surfaces, such as basements, tunnels, and parking spaces. Crystalling waterproofing employs crystalline technology to form a protective barrier, enhancing durability and resistance against water infiltration.

Method & Application of Crystalline Waterproofing 

Crystalling waterproofing can be applied to new and existing concrete structures. For new ones, the agent can be added to the concrete mix during construction, ensuring that the entire structure is protected from the outset. For existing structures, the agent can be applied as a surface treatment, allowing for effective retrofitting.

The application process for crystalline waterproofing is simple: The concrete surface must be prepared by removing any loose or aggregated concrete. Thereafter, the area should be dried and cleaned thoroughly. Lastly, the waterproofing agent is applied to the surface of the concrete in liquid or powder form.

The application of liquid and powder forms are different: The liquid form is sprayed or rolled onto the surface of the concrete, whereas the powder form is mixed with water to create a slurry and applied to the concrete.

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Once the chemical is applied, it begins to penetrate the surface of the concrete and react with the moisture present. This reaction triggers the formation of the crystalline network, which gradually fills the pores and channels within the concrete. The process continues over time, reinforcing the structure with strong bonding.

Types of Crystalline Waterproofing

Crystalline waterproofing is a growing concept in modern times. Builders, homeowners, civil engineers, and commoners have acknowledged its use for tough leaks and crevices. More so, the reduced costs and manpower requirement has also been appreciated.

  1. Concrete Crystalline Waterproofing

Crystalline waterproofing is based on a self-sealing mechanism: The admixture is a mixture of proprietary and cementitious chemicals that function with the moisture in the concrete to form crystals, which expand to cover the pores: Hairline cracks can be fixed up to 0.5mm.

This method helps to promote and enhance the natural hydration process of cement. These systems are versatile, reliable, and useful for a wide range of applications: Concrete mixed with admixtures (crystalline) are adequate for complex architectural designs. As overhangs don’t pose post-waterproofing issues, any type of concrete structure can be handled easily.

  1. Surface-Applied Crystalling Waterproofing

Like conventional waterproofing where membranes and coatings are applied, surface-applied crystalline waterproofing also involves the use of sheets (crystalline chemical). The chemicals penetrate the surface and fill the crevices and holes.

  1. Capillary Crystalling Waterproofing

This process involves injecting crystalline chemicals into the capillary pores and cracks of existing concrete structures. The chemicals react with moisture and cement to form insoluble crystals that block the passage of water.

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 Which chemical(s) are used in Crystalline Waterproofing?

Activated chemicals play a crucial role in CCCW (Cementitious Capillary Crystalline Waterproofing Materials). Some of the chemicals used in the process are sodium carbonate, sodium aluminate, sodium silicate, tetrasodium EDTA and glycine.


Crystalline waterproofing is an effective and reliable method to protect concrete structures. It forms a permanent barrier against water penetration, making it an ideal solution for basements and commercial structures. It is easy to apply, cost-effective, and compatible with new and existing constructions.

If you want to apply it for your home or office, contact Sky Chemical Services today.

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