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Moisture-Resistant, Rapid-Drying, Skimcoat Patching Underlayment​​​​​​​​​​​​​​​​​​

​ARDEX MRF™ Moisture-Resistant, Rapid-Drying, Skimcoat Patching Underlayment is a trowel-grade underlayment formulated from a blend of Portland cement and other hydraulic cements that provides a smooth surface prior to the installation of ARDEX MC™ Moisture Control Systems or moisture-resistant adhesives and flooring. ARDEX MRF is suitable for use over a variety of interior and exterior substrates and allows the installation of most floor coverings in as little as 30 minutes. ARDEX MRF does not require the use of a latex additive and can be installed over most substrates without the need for priming. ARDEX MRF is engineered around a rapid-drying matrix and is designed to be fully resistant to moisture and water.​​​​​

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  • Provides a smooth surface over a variety of substrates
  • Engineered to be fully resistant to unlimited moisture and water
  • Suitable for use under moisture control systems and moisture resistant adhesives and flooring
  • Interior and exterior use 
  • ARDEX WeatherProof Technology
  • Suitable for installation at temperatures as low as 40°F (5°C)
  • Non-sanded - install from a true featheredge up to 1/2” (12 mm) 
  • Rapid-drying - install floor coverings in as little as 30 minutes
  • A blend of Portland and other hydraulic cements 


 Technical Data Reference


 Material Safety Data Sheets




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