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High-Pressure Concrete Crack Repair DemonstrationProfessional results with NextStar's 4500 PSI injection system 4500 PSI InjectionPenetrates cracks as small as 0.002" - perfect for hairline fractures Professional ResultsSame materials used by contractors, simplified for DIY use Permanent RepairHydrophobic polyurethane expands 25x to create watertight seals Product Features
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