Moisture Mitigation

MB-25: Premium Moisture Barrier

PROFLEX® MB25 is a two component, epoxy reaction resin based sealer for professional flooring installation over damp sub floors. MB25 will mitigate moisture pressure from a humid sub floor to an acceptable level for any flooring installation. It will bridge minor cracks in the subfloor. MB-25 spreads easily and creates a dust free surface ready for safe installation of flooring.


  • Moisture Barrier up to 25 lbs or 100% RH
  • Helps contribute to LEED Credits
  • Same dat installations-6 hour cure time
  • No need to shot blast prior to application
  • East to mix and apply
  • Easy clean-up when wet
  • Contains no water, solvents or VOCs

3⁄8​” nap roller, squeegee, or a 1/16” x 1/16” x 1/16” notched trowel. Maximum recommended coverage is 300 - 350 sq. ft. per mixed unit.

Multi-Ply Engineered Plank, Solid Planks, Bamboo, Plywood, LVT/LVP, Sheet Vinyl, Carpet Tile, Cork and Rubber Flooring, Tile, PROFLEX® Peel & Stick Membranes

Component A: 1 US Gallon, Component B: .79 US Gallon

Available docs (click to download)