Product Detail Sheet:

Mainstay® ML-72 Sprayable Microsilica Restoration Mortar (158 KB, requires Adobe Reader)

Mortar Type:

Modified portland cement based mortar

Packaging:

Normally stocked in 65 pound bags; special packaging available

Applied Thickness:

Mainstay ML-72 mortar may be applied from 1/2" to 5" depending on the condition of the substrate. Its high-build capability allows severely deteriorated surfaces to be restored to their original substrate thickness. Substrates requiring restoration thicknesses less than 1/2" would typically be repaired using Mainstay ML-72P Sprayable Microsilica Restoration Mortar.

Coverage:

Approximately 13 square feet per bag at 1/2"

Water Content:

Mix 1.2 gallons of water per 65 pound bag

Test Data:

  • Compressive Strength per ASTM C-109: >10,000 psi at 28 days
  • Flexural Strength per ASTM C-293: >1,400 psi at 28 days
  • Tensile Strength per ASTM C-496: >850 psi at 28 days
  • Shrinkage per ASTM C-596: 0% at 28 days at 90% relative humidity
  • Bond Strength per ASTM C-882: >3,000 psi at 28 days

Suitable Applications:

  • Rehabilitation of sanitary brick and concrete sewer structures such as manholes, lift stations, wet wells, etc.
  • Cementitious underlayment ideal for the application of Mainstay DS-5 100% Solids Epoxy Coating
  • Smoothing and resurfacing concrete that has been roughened by aggressive surface preparation
  • Cementitious lining of corrugated metal culverts and pipes

Application Equipment:

Visit our Application Equipment section to learn more about the equipment needed to apply this product.