Mainstay ML-CA is specifically designed for the rehabilitation of deteriorated concrete and brick structures in wastewater environments subject to biologically induced hydrogen sulfide (H2S) corrosion with a pH of 2 or higher. It is intended to be used as a stand-alone product (uncoated) to resurface, restore, and provide moderate corrosion protection for the host structure.

Mainstay ML-CA product data PDF Download our product detail sheet (34 KB, opens in separate window).

Product Overview

Mortar Type

Pure calcium aluminate cement mortar


65 pound bag; special packaging available

Mix Water

Up to 1.1 gallons per bag


0.54 cubic feet per bag when mixed correctly

Compressive Strength

13,000 pounds per square inch in 28 days (ASTM C-109)


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

Application Equipment

Contact us for information on the proper equipment to apply this product.