Instant PU Repair | Fast Cure Polyurethane Crack Repair Instant PU Repair is a professional grade, two component polyurethane crack repair system designed for ultra fast curing and rapid return to service. This low viscosity material penetrates deep into the concrete capillaries, essentially "welding" the crack together. It is engineered to be ground and coated in as little as 15 to 20 minutes. This is the go to solution when speed is critical and downtime is not an option for the client. Where This Product Fits in Your System Rapid Prep: Repairing cracks and spalls immediately before grinding and coating. Small Hole Repair: Filling "pop outs" or divots in the concrete slab. Cold Storage Applications: Performing repairs in freezers or cold weather environments where epoxy will not cure. Surface Leveling: Prepping floors for high end epoxy or polyaspartic coatings. Key Advantages Ultra Fast Cure: Ready for diamond grinding in 15 to 20 minutes at room temperature. Superior Penetration: Water like viscosity allows it to reach the bottom of the crack for a structural repair. Extreme Versatility: Can be used on both interior and exterior concrete surfaces. Cold Weather Performance: Maintains a fast cure even in low temperature conditions. High Strength: Once cured, the repair is often stronger than the surrounding concrete. Application and Modification Instant PU Repair is a 1 to 1 mix ratio system that is easy to deploy on the jobsite. For larger repairs or surface leveling, this product can be modified by adding clean, dry silica sand or quartz to increase viscosity and build body. This allows you to create a "slurry" that fills wide cracks or deep spalls without the material running or sinking. Frequently Asked Questions How fast does this product cure?▾ Most repairs are ready to grind flush with the floor in 15 to 20 minutes depending on the ambient and slab temperature. Can I use this in cold temperatures?▾ Yes. This polyurethane system is specifically designed to cure in low temperature environments where standard epoxy repair materials would take hours or days to set. Is this for deep cracks or surface repairs?▾ It works for both. Its low viscosity allows it to penetrate deep hairline cracks, but it can be thickened with sand for surface spalls and larger defects. Can I coat over it with epoxy?▾ Yes. Once the material is cured and ground smooth to remove any surface film, it is fully compatible with epoxy, polyurethane, or polyaspartic coatings. Can I make it thicker?▾ Yes. You can add dry silica sand or quartz to the mixture to increase viscosity for larger repairs or to help level low spots in the slab. Does it have a strong odor?▾ It has a distinct polyurethane odor during the rapid chemical reaction, but it dissipates quickly as the material reaches full cure. Do I need to prime the crack first?▾ No. The low viscosity of the material acts as its own primer, soaking into the concrete for a high strength bond. Can I use this on a wet surface?▾ No. Like most polyurethanes, Instant PU Repair is moisture sensitive during cure. Ensure the crack and concrete are dry before application. What tool should I use to apply it?▾ Small cracks can be filled directly from a pour can. For larger areas, a flat putty knife or steel trowel is ideal for moving the sand slurry into place. Will it change color over time?▾ This product is designed for functional repair rather than aesthetic finishing. It may amber if exposed to direct UV, but since it is typically ground and coated over, this does not affect performance.
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