MB-25: Premium Moisture Barrier

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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 day installations-6 hour cure time
  • No need to shot blast prior to application
  • Easy to mix and apply
  • Easy clean-up when wet
  • Contains no water, solvents or VOCs
Related Products

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.

Suitable Substrates

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

Contact Us

1603 Grove Ave, Haines City, Florida 33844

877-577-6353 Fax: 863-937-9624