Grace Perm-A-Barrier W.B. Primer - 1 Gallon

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Quick ID: Q822
Ships Free with $199 Order

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Usually Leaves Warehouse Same/Next Business Day


  • Excellent adhesion
  • Fast and easy application by brush or roller
  • Aggressive tack - will provide bond to difficult substrates such as glass faced wall boards
  • Fast drying
  • Low odor
  • VOC compliant - 10 g/L content


Grace Perm-A-Barrier WB Primer is a water-based primer that provides a strong, high tack finish on the treated substrate. It is specifically designed to work in combination with and attach Perm-A-Barrier Flashings, Perm-A-Barrier Detail Membrane and Perm-A-Barrier Wall Membrane to various substrate including glass-mat faced gypsum sheathing. Grace Perm-A-Barrier is nonflammable. The VOC content is 10g/L and meets the U.S. EPA Volatile Organic Compound Emission Standard for Architectural Coatings.


Manufacturer Part Number46509
Sub BrandGCP Applied Technologies
Compatible MaterialsFaciltates Adhesion of Grace Construction Products Flashing, Detail Membranes, and Wall Membranes to Various Subtrate including Glass-Mat Faced Gypsum Sheathing
Coverage - Square Feet250-350/gallon
Installation MethodA moderately thick coating should be applied and rolled out evenly. A properly applied coating will have uniform coverage and leave a tacky finish to the surface when dry.
Installation Tools RequiredSynthetic, 1/2 in (13 mm), nap roller
Package Quantity1
StorageAbove freezing
V.O.C10 g/L
Ships to HI/AKNo

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