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Crack-Weld 1 Gallon Kit

  • SKU: 4900-R
  • 68.16 USD$68.16

Crack-Weld: Fix Cracked Concrete

This is our original Crack-Weld Filler, slow curing

When you work with concrete, you’re guaranteed to come into contact with cracked and damaged concrete. Cracks can be particularly frustrating for professional concrete floor coating installers. Cracks not only damage the integrity and appearance of concrete — they also damage the integrity of any overlay flooring installed on top of concrete. As an installer, that means you need to repair cracked concrete surfaces before any job can proceed. And you need to do it to the best of your ability — otherwise, you can create serious delays in your project.

Crack-Weld epoxy from Versatile solves all of these problems. With Crack-Weld, you can fix cracked concrete, creating an ultra-strong bond between the two sides of any crack. Just as importantly, since it is a solvent-free formula  you won’t need to delay or disable other parts of your installation.

Crack-Weld is a two-component epoxy that can be used to fix cracked concrete in practically any setting, on practically any job.

Simply mix the A Formula and B Formula together, apply and spread the mixture, and wait. In five short minutes, the epoxy will penetrate into the crack and wick into the concrete. It will potentially seep through the crack itself to the bottom of the crack since the regular Crack-Weld is not a paste, but  a typical heavy 100% Solids epoxy mixture. The use of silica sand (20 grit) into the crack will help dam the crack and not allow the epoxy to run through the bottom of the crack. Repeat the process and overfill the crack so no low spots show. You can use a putty knife to smooth out the finish or grind the epoxy down flush after it has cure. Dry time will be approximately 12-14 hours, depending on temperatures. We also offer the 5 Min Crack-Weld if time is of importance. 5 Min Crack-Weld is a paste patching compound used for ultra-fast turnaround patching repairs. It is dry and cured in 20 minutes.

The Crack-Weld creates a strong, lasting bond between the two sides of the crack. It’s slow curing rate gives you an ample amount of time to use the product and skim back overfill any voids as the product seeps deep into the cracks. On large projects where you have lots of cracks to fill this is a cost effect way to repair those cracks. Mixing silica sand aggregate into the Crack-Weld will also help to strengthen and thicken up the product.

Fix Cracked Concrete for Any Project

Crack-Weld is the perfect product for fixing cracked concrete, especially if you’re installing concrete floor overlays. Crack-Weld is an indispensable tool for anyone working with other Versatile products, such as our 4195 Direct-to-Concrete Pigmented Epoxy Floor Coating, our Roll on Rock® Epoxy Flake Flooring System, and our Lava Flow® Metallic Epoxy Flooring Sysyem. Crack-Weld can also be used on its own to fix cracked concrete and prevent further damage from wear or moisture.

Features and Advantages:

  • Slow curing which helps it seep deeper into the cracks and good working time. (12-14 hrs)
  • Low-odor formula
  • Sold in pre-measured, two-component kits
  • Free of solvents
  • Excellent adhesion to concrete floors

Where Used:

  • Commercial floors
  • Residential floors
  • Industrial floors
  • Retail concrete flooring
  • Commercial Kitchen concrete floors
  • Concrete garage floors
  • Aircraft Hangar concrete floors
  • Chemical Process Facilities concrete flooring
  • Locker Room concrete floors
  • Service Bay concrete floors
  • Anywhere else that you need to fix cracked concrete


  • Cement Cracks
  • Covering the Cracked Concrete
  • Adding a Coated Layer to Concrete Repairs
  • Products to Help Repair Cement
  • Sealing and Repairing Cracked Concrete
  • Quick Drying Concrete
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