Above-Ground Concrete Waterproofing

Kryton’s crystalline waterproofing technology is typically used to waterproof concrete exposed to hydrostatic pressure, such as basements. There is generally no direct water pressure above ground level, which allows greater variety of products to be considered. Crystalline waterproofing can be used above ground as well, but Kryton offers another solution for those applications: Hydrostop Sealer.

Hydrostop Sealer is a low VOC water-based formulation of silanes and siloxanes used to protect the concrete, brick by brick. Hydrostop penetrates and reacts to form a water repellent barrier. The surface becomes strongly hydrophobic, causing water to form beads on the surface instead of being absorbed.

What are the benefits?

• Reduced efflorescence (salt deposits) – reduced water absorption prevents soluble salts from leaching out and leaving unsightly stains;
• Cleanliness – by preventing water saturation, dirt, and algae are less likely to adhere to the surface, which keeps buildings cleaner;
• Breathability – Hydrostop does not form a surface film, so water vapor can still escape; and
• Reduced corrosion – deicing salts carried by melting snow and ice are a major cause of corrosion for reinforced concrete. Hydrostop protects against the ingress of salts and extends the structure’s service life.

What does it look like?

Hydrostop does not form a surface film, so the texture and gloss remain unchanged, while other materials may darken slightly. Unlike film forming sealers, there is no cracking, peeling or yellowing due to weathering.

Are there limitations?

Hydrostop does not physically block pores, so water under pressure can penetrate over time. Use Kryton’s crystalline waterproofing systems for applications involving water under pressure (basements, pools, etc.).

Hydrostop Sealer provides a simple and effective treatment to protect above ground concrete, brick and block without altering the appearance. When specifying Krystol Internal Membrane (KIM) or the Krystol T1 & T2 Waterproofing System to waterproof your basement, don’t overlook the benefits of using Hydrostop once you get above ground.