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- Strong-Seal® QSR 40 lb. rapid-setting, high-performance patching material designed for repairing and restoring concrete and masonry structures, with a special focus on manhole rehabilitation. Offering impressive compressive strength—over 1,500 PSI in 1 hour and 3,000 PSI in 28 days—QSR ensures long-lasting durability even in harsh, corrosive environments. Its quick set time of 15-30 minutes allows for fast application, minimizing downtime and enabling storm runoff to resume in just 2-4 hours. Formulated with calcium aluminate cement and pozzolans, QSR is ideal for repairing manhole inverts, benches, and voids, providing exceptional bond strength and corrosion resistance. With its easy-to-use mixing process and versatile application methods, QSR is perfect for use in manholes, tanks, tunnels, and pipelines, making it an indispensable solution for municipalities and contractors needing fast, reliable infrastructure repairs.
- Water Tight Seal: Expands to fill all voids and seal all substrates
- Versatile: Bonds and seals concrete, metal, plastic, wood and pre-cast connections.
- Environmentally Friendly: Non-hazardous, No VOCs, CFCs or HFCs
- ColorGrayContainer Size40 lbContainer TypeBucketFormPowderManufacturerFerncoManufacturer #SS-QSRMaterialMortorSeriesStrong-SealWorking Time15 to 30 min