Specifically designed for use on MDF, plywood subflooring, and other porous materials, Stone Coat Flooring Epoxy Undercoat is low-odor, ammonia-free formulation not only provides a strong adhesive base for epoxy applications but also eliminates off-gassing to maintain colorfastness. With its ability to create a robust bond with wood flooring substrates, this undercoat ensures long-lasting durability and prevents delamination of subsequent layers. Whether you're pouring a metallic floor using our Flooring Epoxy Midcoat or applying an epoxy flake floor over wood with Moisture Seal Epoxy Primer, this undercoat is your perfect solution for achieving a professional-quality finish that stands the test of time. With our Flooring Epoxy Undercoat, there's no need to wait 24 hours like with traditional paints—it's ready for epoxy application in just a few hours, making it an essential time-saver for DIY homeowners eager to transform their spaces and start using them sooner. Key Features: Specifically formulated for MDF, plywood, and other porous subfloor materials. Excellent adhesion for Flooring Epoxy Midcoat or Moisture Seal Epoxy Primer, ideal for creating epoxy metallic and flake floors over wood surfaces. Low-odor and ammonia-free for a more pleasant application experience. Fast drying—ready for epoxy application within 3-4 hours after the second coat. Perfect for garages, basements, home gyms, and more. Application: Clean the floor surface and fill any cracks or voids with Floor Patch Epoxy Gel. Sand the patched areas smooth before applying the undercoat. Apply two coats of Flooring Epoxy Undercoat using a 1/4" - 3/8" microfiber roller. Apply the second coat when the first is dry to the touch. Wait 3-4 hours after the second coat before applying either Flooring Epoxy Midcoat for metallic floors or Moisture Seal Epoxy Primer for flake floors.