Company’s newest concrete surface treatment, MCI-2019 X, is a 40 percent silane penetrating water repellent minus the typical Migrating Corrosion Inhibitors of the MCI-2019 offering. The absence of the MCI affords some contractors more options to adapt to specific project budgets and parameters.
MCI-2019 X provides water repellency by chemically reacting with the alkaline environment of concrete and creating a hydrophobic layer to reduce the ingress of water and other corrosives. The repellency offers standalone benefit and is even better paired with a penetrating surface applied corrosion inhibitor. Historically, this combination has been available with the manufacturer’s MCI-2018 and MCI-2019, two silane water repellents that contain MCIs. However, to get the highest concentration of surface applied corrosion inhibitor, users must opt for MCI-2020, which contains a higher dose of MCI without water repellent.
Using a 40 percent silane water repellent is more budget friendly than a 100 percent formulation because of the lower concentration of a commodity in high demand. Moreover, contractors applying water repellent to previously treated concrete surfaces must think about ensuring good penetration and compatibility. This usually requires the thorough removal of water repellent residue before another product can be applied. — Cortec, St. Paul, Minn., 800/426-7832; www.cortecvci.com