---
product_id: 10585140
title: "CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler"
brand: "radonseal"
price: "€ 222.73"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/10585140-crackweld-diy-concrete-crack-repair-kit-2-pack-self-leveling
store_origin: NL
region: Netherlands
---

# Repairs up to 50 linear feet Cures in under 1 hour Temperature tolerant, even freezing CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler

**Brand:** radonseal
**Price:** € 222.73
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it, forget it—concrete cracks don’t stand a chance!

## Quick Answers

- **What is this?** CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler by radonseal
- **How much does it cost?** € 222.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/10585140-crackweld-diy-concrete-crack-repair-kit-2-pack-self-leveling)

## Best For

- radonseal enthusiasts

## Why This Product

- Trusted radonseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Weld:** Polyurethane filler cures harder than concrete, preventing future cracks.
- • **Built for Extremes:** Works in freezing temps—perfect for industrial freezers and cold storage.
- • **Fast-Track Repairs:** Ready for foot or vehicle traffic in less than 60 minutes—minimize downtime.
- • **Seamless & Natural Finish:** Includes sand for a flush, natural concrete look—ditch ugly patches.
- • **Effortless Prep, Maximum Impact:** No routing or grinding needed—just apply and seal.

## Overview

The CrackWeld DIY Concrete Crack Repair Kit offers a professional-grade, self-leveling polyurethane formula that permanently repairs up to 50 linear feet of cracks without peeling, shrinking, or crumbling. It requires no crack prep, cures faster than traditional methods, and withstands extreme temperatures, making it ideal for both residential and industrial concrete surfaces.

## Description

Full description not available

## Features

- Permanently repairs up to 50 linear feet of concrete slab cracks averaging 1/16 inch wide; will NOT peel or shrink like silicone caulk sealants; will NOT crack or crumble like hydraulic cement patches.
- No routing, grinding, or chasing required; no need to open the crack before repairing it; prep could not be easier; suitable for hairline cracks up to ½ inch.
- Self-leveling, low viscosity, polyurethane crack filler seeps deep into cracks and “welds” them together on the inside.
- Fast curing rigid polymer cures harder than concrete preventing further movement, opening, or yawning; ready for traffic or flooring in less than an hour; minimize downtime.
- Complete crack repair kit includes: two cartridges of 2-component polyurethane, mixers, needle tip applicators, and sand. Use your own standard caulking gun.
- As seamless as concrete crack repair gets; say goodbye to ugly patching compounds; cured repair material can be grinded flush to the floor; sand (included) can be added to the repair to provide a natural concrete look.
- Easy to use kit makes quick work of shrinkage or settling cracks in patios, pool decks, concrete driveways, basements or garage slabs.
- High-performance rigid urethane is ideal for high traffic areas, commercial warehouses, factory floors, and parking structures.
- Temperature tolerant curing; perfect for industrial freezers, cold storage, and other areas where freezing temperatures are routine.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Surface Recommendation | Floor |
| Water Resistance Level | Water Resistant |
| Item Form | Liquid |
| Material Type | Polymer |
| Style Name | Compact |

## Product Details

- **Material:** Polyurethane
- **Brand:** RadonSeal
- **Style:** 2-Pack, Single Cartridge
- **Item Weight:** 3.8 Pounds
- **Item dimensions L x W x H:** 11 x 6 x 4.5 inches

## Images

![CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler - Image 1](https://m.media-amazon.com/images/I/810-63kA2CL.jpg)
![CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler - Image 2](https://m.media-amazon.com/images/I/71YHPHKa5cL.jpg)
![CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler - Image 3](https://m.media-amazon.com/images/I/819bif23HVL.jpg)
![CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler - Image 4](https://m.media-amazon.com/images/I/81b5p0udDsL.jpg)
![CrackWeld DIY Concrete Crack Repair Kit (2-Pack); Self-Leveling Polyurethane Concrete Crack Filler - Image 5](https://m.media-amazon.com/images/I/91WHaBuj-qL.jpg)

## Questions & Answers

**Q: Polyurethanes or Epoxies?**
A: Epoxies

**Q: Can this be stained? I would like to use a concrete stain afterwards.**
A: CrackWeld prevents water penetration and is considered hydrophobic in behavior. Therefore, it will not properly absorb a water-based stain nor will the compound react with an acid stain. CrackWeld is paintable however.

**Q: Will this work on Poured Wall foundations?**
A: CrackWeld is a low-viscosity, self-leveling, two-component resin, intended to be used solely for the repair of cracks on horizontal surfaces (slabs/floors). For repairing settling cracks in poured concrete foundation walls, use our RadonSeal DIY Foundation Repair Kit - Urethane.

**Q: If you are supposed to do 10 feet at a time, and the tube will do 25 feet, if you stop the tube will seize up?**
A: The 10 ft at a time is just a reccomendation so that you dont rush.  Once you start the tube, you have to finish it because it will dry shut on you.  One important thing that I learned is that you have to run a pretty good "start" squeeze into something other that your crack ( grass) so that you get good movement of both of the fluids through the mixing tip.  Good luck!

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works well
  

*by H***H on Reviewed in the United States on February 26, 2024*

The instructions are simple, product seeps into cracks. it is not for vertical wall cracks as it's too fluid. I found for my floor crack ( 12' long, from a hair line to 1/8" wide I applied layers. One tube was plenty. It tacks up in under an hour and next day was solid. I didn't need the extra fine sand they provided. Seems to expand some too which was nice. No smell.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Love this stuff
  

*by D***D on Reviewed in the United States on March 12, 2013*

A quick review.I had a slab crack.  Wide in some places very small hair crack in others.This product worked wonders to fill the gap and glue the crack shut before floating a floor on top.... I would purchase extra sand next time.... Work fast!  It starts to setup very quickly.  Just do like a 4 ft area at a time.I had about 16 ft of crack to glue.  If there is a next time I will be purchasing two kits and extra sand so I don't have to rush and I can really soak the crack down deep.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Expensive, but worth it.
  

*by P***O on Reviewed in the United States on December 2, 2023*

This product works as advertised, and the accompanying instruction/FAQ sheet was clearly written and very helpful. Even though I applied this material after applying two "coats" of Radonseal, and so far there's no dampness oozing up through the welded cracks.  Time will tell is it's as long-lasting as the manufacturer claims.

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*