CrackWeld Concrete Floor Crack Repair Kit

CrackWeld Concrete Floor Repair Kits provide a fast, permanent solution for repairing cracks and defects in concrete slabs and basement floors, while also sealing against water intrusion and radon gas entry. Formulated with a two-component rigid polymer, CrackWeld cures stronger than concrete itself within minutes, restoring structural integrity without routing, grinding, or specialized tools.

This professional-grade concrete crack repair kit is ideal for basement floors, slab-on-grade foundations, industrial concrete floors, driveways, garage floors, patios, sidewalks, pool decks, and parking garages, including heavy vehicular and foot traffic areas.

Permanently Repairs Basement Floor Cracks & Blocks Water and Radon

Cracks in basement floors are a common entry point for groundwater seepage and radon gas. CrackWeld’s low-viscosity polymer penetrates deep into cracks, permanently welding the concrete together and forming a strong, non-shrinking seal that helps prevent moisture intrusion and radon infiltration.

• Seals basement floor cracks against water seepage

• Helps block radon gas entry through concrete slab cracks

• Cures stronger than concrete in minutes

• Restricts the movement of stress cracks and stabilizes weak concrete

No Routing or Grinding Required

CrackWeld eliminates time-consuming surface preparation:

• No crack routing or saw cutting needed

• Low-viscosity polymer flows into hairline to wide cracks

• Fills spalling concrete, voids, holes, and surface defects

• Minimal downtime, ideal for occupied homes and commercial spaces

Complete DIY Concrete Crack Repair Kit

CrackWeld kits come complete and are designed for both homeowners and professionals.

• All materials included. Just add a standard caulking gun or use your own

• No special tools or mixing equipment required

• Fast cure allows for a quick return to painting, leveling, foot, and vehicular traffic

Ideal Applications

✔ Basement floor crack repair
✔ Concrete slab and slab-on-grade cracks
✔ Garage floors and driveways
✔ Industrial and commercial concrete floors
✔ Patios, sidewalks, and parking garages
✔ Heavy foot and vehicle traffic areas

Why Choose CrackWeld Over Traditional Concrete Crack Fillers?

• Permanent structural repair and not a cosmetic patch

• Seals cracks against water intrusion and radon gas

• Faster cure time than cement or epoxy fillers

• Stronger bond to existing concrete

• Designed specifically for concrete floor and basement slab cracks

Once cured, CrackWeld repairs can be ground flush or left as-is, delivering a long-lasting repair.

Repair Basement Floor Cracks Once, and Seal Them for Good

If you’re looking for a reliable basement floor crack repair kit that also helps protect against water seepage and radon gas, CrackWeld® delivers unmatched strength, speed, and performance.

Need Help with Your Project? Our knowledgeable technical support team is just a phone call or email away. We’re here to help you get the job done right.

Fast Shipping: Most orders received by 2:00 PM EST ship the same business day via Ground Delivery. Delivery typically takes 1–3 business days to the East Coast and Central states, and 3–5 business days to West Coast destinations.