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Henry 1171 Sure Lock is a premium hardwood floor adhesive engineered for professional installation. This 4-gallon container delivers consistent bonding performance across solid and engineered hardwood applications. The advanced formulation ensures rapid set times while maintaining workability, reducing installation delays. Sure Lock's moisture-resistant properties protect against environmental fluctuations, minimizing cupping and movement. Ideal for contractors and flooring specialists seeking reliable, long-lasting results on demanding projects. One 4-gallon pail covers approximately 1,000 square feet, depending on substrate conditions and application method.