Mainstay ML-10 can repair leaks in floors and vertical and overhead surfaces of deteriorated concrete structures such as manholes, lift stations, pits, sumps, trenches, tunnels, piers, or any concrete structure that is experiencing flowing, seeping, or weeping leaks.

Mainstay ML-10 product data PDF Download our product detail sheet (30 KB, opens in separate window).

Product Overview

Mortar Type

Portland cement with hydraulic cements and fillers


50 pound pail

Mix Water

Just enough water to form a viscous lump with the consistency of modeling clay


0.42 cubic feet per pail when mixed correctly

Compressive Strength

5,500 pounds per square inch in 28 days (ASTM C-109)


0% after 28 days at 90% relative humidity (ASTM C-490)

Application Equipment