Dap Bondex Concrete Floor Leveler Gray Powder 5 lb 15-Pack Portland Cement-Based Dap Bondex Concrete Floor Leveler is a Portland cement?based, polymer-modified underlayment designed to smooth and flatten interior concrete, masonry, and plywood subfloors prior to resilient, ceramic, or hardwood flooring installation. This self-leveling (with trowel assist) compound fills voids up to 1 inch deep, corrects minor slope irregularities, and creates a uniform surface for optimal adhesion and wear resistance. The gray formulation matches standard concrete for seamless visual integration, while added polymers enhance flexibility and reduce shrinkage cracking. Mixes easily with water to a pourable or trowelable consistency, sets in 3 hours, and is ready for light foot traffic in 24 hours. Ideal for basements, garages, commercial tenant improvements, and renovation prep?especially where vinyl sheet goods, LVT, or tile require a flat, stable substrate per ASTM F710 standards. Features - Portland cement?based formula with polymer additives for improved adhesion and crack resistance - Self-leveling (with minimal troweling) for efficient coverage of large or uneven areas - Fills depressions up to 1 inch deep without sagging or segregation - Bonds to clean concrete, masonry, and properly prepared plywood (exterior-grade, APA-rated) - Sandable after 24 hours for fine-tuning transitions and feathered edges - Gray color blends with concrete?no need for skim coat before certain flooring types - Low odor and dust-suppressed powder for safer indoor handling - 5 lb size optimizes batch mixing to minimize waste on small-to-medium jobs - 15-pack supports multi-room residential or light-commercial flooring prep - Complies with VOC regulations for indoor air quality (no hazardous solvents) Specifications - Brand Name: Dap - Model Name: Dap 10414 - Part Number: 10414 - Product Type: Concrete Floor Leveler - Sub Brand: Bondex - Form: Dry Powder - Color / Finish: Gray - Package Size: 5 lb - Units per Box: 15 - Coverage: Approx. 25 sq ft at 1/8 in thickness (varies by depth) - Mix Ratio: 4.5?5.0 qt water per 5 lb bag - Working Time: ~20 minutes at 70F - Initial Set: 180 minutes - Walk-On Time: 24 hours - Full Cure: 28 days (for heavy loads or moisture-sensitive flooring) - Application Temp: ?40F ambient and substrate - Substrate Compatibility: Concrete, masonry, exterior plywood (primed) - Country of Origin: United States - UPC: 028923104149 - Global Trade Identification Number: 00028923104149 - Manufacturer: Dap Products Inc. Product Application This leveler is used by flooring contractors, remodelers, and DIYers preparing substrates for luxury vinyl plank, sheet vinyl, ceramic tile, or engineered wood in homes, retail spaces, and offices. Commonly applied to garage slabs before epoxy coating, basement floors prior to LVT, or uneven kitchen subfloors before ceramic backsplash and flooring transitions. Its ability to bridge minor control joints and patch spalled areas makes it valuable in renovation over older concrete?especially where laser-leveling is impractical. The 15-pack format serves multi-unit rehab projects or crews managing sequential room installations, ensuring batch consistency and reduced job-site storage. Ideal for users who prioritize reliable, code-compliant floor prep without the cost or complexity of pump-mixed self-levelers.