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Universal Primer Pro 5 Gal by Bostik is a professional-grade concrete sealer engineered for superior adhesion and durability. This high-performance primer creates an ideal foundation for paint application on concrete surfaces, ensuring excellent coverage and long-lasting protection. The 5-gallon capacity makes it ideal for both residential and commercial projects. Bostik's advanced formulation resists moisture penetration and enhances paint bonding, reducing the risk of peeling or failure. Perfect for preparing concrete floors, driveways, and patios before finishing coats.