Three-component waterborne epoxy

USG Durock™ Brand Fusion™ Primer is a one-coat waterborne epoxy specially formulated for interior applications as a consolidation primer for dusty compromised gypsum underlayments.   

Features and Benefits

As a consolidation primer for compromised gypsum underlayments, USG Durock™ Fusion™ Primer reduces surface dust and chalkiness, and increases surface hardness and internal strength of the gypsum matrix to an acceptable level which then allows the application of USG Durock™ trowelable or USG Durock™ or USG Levelrock® pourable products to repair the compromised gypsum underlayment surface. USG Durock™ Fusion™ Primer:

  • Offers superior penetration and tenacious bond to gypsum underlayments
  • May be applied to freshly poured USG Levelrock® Brand Floor Underlayments and USG Durock™

Brand Multi-Use Self-Leveling Underlayment after set as a surface treatment

  • Is low VOC and low odor
  • Provides a fast cure time


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United States Gypsum Company

550 West Adams Street

Chicago, IL 60661

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