Madewell Products Corporation
As our water and wastewater systems age, using structural rehabilitation and protective coatings can provide a cost-effective solution to manhole infiltration and inflow problems.
Our manhole rehab methods can prove a permanent seal against future corrosion and can restore your structure to near new condition quickly and at a fraction of the cost.
Mainstay ML-72
Mainstay ML-72 Sprayable Microsilica Restoration Mortar
Mainstay ML-72 is a blend of portland cement, microsilica, thermoplastic fiber, densifiers, admixtures, and other modifiers that produces a high strength, low shrinkage, and low permeability mortar for the rehabilitation of deteriorated concrete structures such as manholes, lift stations, wet wells, etc. Mainstay ML-72 mortar can withstand environments with a pH of 3 or higher, but is typically used in conjunction with a corrosion barrier topcoat, such as Mainstay DS-5 100% Solids Epoxy Coating.
Product Overview
Mortar Type – Portland cement and natural siliceous aggregates enhanced with microsilica, polypropylene fibers, and various additives
Packaging – 65 pound bag; special packaging available
Mix Water – Up to 1.3 gallons per bag
Yield – 0.54 cubic feet per bag when mixed correctly
Compressive Strength – 10,000 pounds per square inch in 28 days (ASTM C-109)
Shrinkage – 0% after 28 days at 90% relative humidity (ASTM C-490)
Application Equipment – Contact us for information regarding the proper equipment to apply this product.
Mainstay ML-CA
Mainstay ML-CA Pure Calcium Aluminate Restoration Mortar
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.
Product Overview
Mortar Type – Pure calcium aluminate cement mortar
Packaging – 65 pound bag; special packaging available
Mix Water – Up to 1.1 gallons per bag
Yield – 0.54 cubic feet per bag when mixed correctly
Compressive Strength – 10,000 pounds per square inch in 28 days (ASTM C-109)
Shrinkage – 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.
Mainstay ML-10
Mainstay ML-10 Hydraulic Cement Mortar
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.
Product Overview
Mortar Type – Portland cement with hydraulic cements and fillers
Packaging – 50 pound pail
Mix Water – Just enough water to form a viscous lump with the consistency of modeling clay
Yield – 0.42 cubic feet per pail when mixed correctly
Compressive Strength – 5,500 pounds per square inch in 28 days (ASTM C-109)
Shrinkage – 0% after 28 days at 90% relative humidity (ASTM C-490)
Application Equipment – Trowel
Mainstay DS-5
Mainstay DS-5 100% Solids Epoxy Coating
Mainstay DS-5 is designed for use where corrosion is anticipated or known to be aggressive. DS-5 is also ideal for secondary containment applications where moderate concentrations of acids (ex: unlimited immersion in 30% sulfuric acid) exist. Mainstay DS-5 is particularly well suited for use as a topcoat over Mainstay ML-72 or Mainstay ML-72F Sprayable Microsilica Mortar.
Product Overview
Coating Type – 100% solids, two-component epoxy coating
Packaging – 4.5 gallon kits standard; special packaging available
Coverage – Approximately 16 square feet per gallon at .1″ (100 mils); 72 square feet per kit at .1″; allowances should be made for waste
Mix Ratio – 2 parts A to 1 part B by volume
Color – White; custom colors available upon request
Working Time – Approximately 45 minutes at 80º Fahrenheit
Application Equipment – Contact us for information on the proper equipment to apply this product.
Our Manufacturer
Our best-in-class supplier of manhole rehabilitation products is Madewell Products Corporation