Krystol Admixture and Remedial Products

1. How does Krystol technology work?

Krystol technology is an integral crystalline concrete waterproofing system that was developed over 40 years ago. When added or applied to concrete, crystalline chemicals cause long narrow crystals to form. The crystals penetrate through the concrete and fill the pores and hairline cracks. The crystals continue to react with incoming water to self-seal cracks that inevitably develop in concrete over time. This technology protects concrete structures against water and contaminants that can weaken or destroy concrete and corrode steel reinforcements.

2. What is the maximum width of crack that Krystol will self-seal?

Krystol will self-seal hairline cracks up to 0.5mm (0.02 inches) in width. While larger cracks are generally not expected to self-seal, recent testing has indicated that 0.6mm (0.024 inches) is achievable and evaluations of actual projects in service have revealed that much wider cracks have self-sealed in the presence of moisture.

Krystol technology has achieved remarkable results in its ability to self-seal cracks. It has been reported by owners, engineers and contractors that the ability to self-seal cracks has been unparalleled by any other waterproofing system available.

Cracks that are not able to self-seal can be repaired from either the negative (inside) or positive (exterior) side of the concrete with the Krystol Crack Repair System.

3. How long does Krystol last?

The Krystol treatment will last as long as the life of the concrete. Once Krystol penetrates deep into the concrete matrix it stays there – permanently. It will not deteriorate, wear away, tear or separate at seams. In fact, in the presence of moisture, Krystol reactivates and becomes stronger over time, protecting reinforcing steel from corrosion and preventing spalling, cracking and deterioration.

4. Are Krystol products non-toxic?

Yes – all Krystol products are approved under NFS/ANSI-61 for contact with potable water. Krystol products also have numerous international certificates from the European Union, Germany, Bermuda, Kuwait and others.

5. Can Krystol be damaged by UV radiation?

No – Krystol becomes an integral component of the concrete and its effectiveness will not deteriorate due to UV radiation.

6. Can the Krystol chemicals be “used up” and become ineffective over time?

No – the Krystol chemical is never used up during the crystallization process. Only a very small amount of Krystol is required to grow a very large quantity of crystals. Within the tight confines of the concrete, crystals can easily grow to fill and block the microscopic capillary pores and micro-cracks without using more than a small fraction of the available Krystol chemical. The remaining chemical lies dormant within the concrete waiting for a crack to develop that will provide the necessary space and water source to allow the crystallization process to continue.