Sikaflex-1A Joint Sealant, Limestone, for Green and Damp Concrete, Premium Polyurethane Adhesive for Joints, Fast Cure, 10.1 fl. oz Cartridge

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🛠️ Seal smart, cure fast, last longer!

Sikaflex-1A is a premium polyurethane joint sealant designed for small joints up to 1/2 inch deep. It offers fast curing with a tack-free time of 3 hours, exceptional elasticity to accommodate ±35% joint movement, and superior resistance to weathering and aging. Certified to meet ASTM C920 and NSF/ANSI 61 standards, it’s the reliable choice for sealing windows, doors, and other critical joints on green and damp concrete.