About Hydra Consultation and Repair Contact Us
The Capillary Waterproofing Experts:

Capillary waterproofing technology (also known as crystalline waterproofing) was developed in Denmark in 1945. During the 1960's, Hydra's President and Founder, originally from Denmark, worked closely with those who did the early development of these products. In 1968, he was the first to bring capillary coating to North America. In the decades since, he has been a pioneer of the technology, perfecting and expanding the techniques for its use.

Capillary coating can be used as a mortar, sprayed on, or injected, and can be applied on the positive (outside) or negative (inside) of the structure. It is effective on a variety of materials including concrete, concrete block, brick, and cinder blocks.

Unlike membrane and barrier systems, capillary waterproofing provides enhanced protection against moisture infiltration because it does more than provide a barrier at the point of contact - they physically change the concrete's ability to transmit moisture. Upon contact, the active chemicals in a capillary coating are "pulled" into the pores of the concrete by capillary action caused by moisture. Once inside, the chemicals react with the free lime in the concrete forming crystals that fill the pores, permanently stopping the transmission of moisture. As long as there is water in the concrete, the active chemicals will continue to penetrate, filling the tiny channels, and sealing out water for good.

Minor damage to the treated structure is self-healing over time. Should hairline cracks or surface damage occur (due to settling or impact), any moisture that begins to penetrate the concrete reactivates the chemicals, forming new crystal growth that will once again make the concrete impervious to moisture. And once the material has set, the concrete can be drilled without fear of leaks. This combination of application techniques and enduring performance has made capillary coating the most effective and durable solution to the vast majority of concrete waterproofing problems.