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Professional-grade polyurethane caulk designed for concrete, masonry, and above-grade waterproofing joints. Remains flexible after cure — critical for expansion joints and cracks subject to seasonal movement that would re-open rigid patching compounds. Bonds to wet or damp concrete and cures to a durable EPDM-like sealant. Paintable after 24 hours. Used by waterproofing contractors for above-grade sealing.
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