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Leveling Underlayment Systems


Treadstone Launches New Elite Duo Sound Attenuation System

The Treadstone Elite Duo acoustical system delivers an astounding 61 STC/55 IIC in a system with an unparalleled thickness of just over 1”.

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Polymer modified hydraulic cement formulation that provides increased early strength to withstand construction traffic. With its innovative technology, Ultra can be installed prior to the building being fully enclosed.


  • Hybrid Cement Technology
  • Compressive strengths up to 5000psi
  • Low-prep formulation, bead blasting not required for
    pedestrian traffic use
  • No hand troweling required
  • Unmatched technology, cost effective solution
  • Installed by a network of technically trained licensed dealers

Recommended Uses

  • Multi-family Construction (Apartments/Hotels/Condominiums)
  • Residential and Single Family
  • Commercial Office Space
  • Renovation of old structurally sound wood frame or
    concrete structures
  • Institutional


80lb bags
3000lb Supersacks