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SIKA PRO 517003 is a professional-grade level primer designed for demanding flooring applications. This gallon-sized container delivers consistent coverage and superior adhesion preparation for concrete and wood substrates. Ideal for contractors and installers who require reliable primer performance before applying flooring finishes. The formulation ensures even surface preparation, reducing the risk of finish failure and extending the life of your flooring installation. Trust SIKA PRO for quality results on every project.