8421 CrownCrack®
Concrete Repair Epoxy Paste – Cracks, Spalls, & Surface Defects
Description
CrownCrack 8421 is a two-component, 100% solids, opaque epoxy paste designed for repairing cracks, spalls, and surface defects in concrete prior to the installation of resinous flooring systems. It delivers excellent adhesion, low shrinkage, and high strength, providing a durable and stable substrate for subsequent coatings. Suitable for industrial and commercial applications.
Typical Uses
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Filling Static Cracks in Concrete Substrates
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Repairing Spalls, Divots, and Surface Pitting
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Rebuilding Damaged Areas Prior to Resinous Flooring Installation
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Patching Control Joints (Non-Moving) Before Coating
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Smoothing Rough or Uneven Concrete Surfaces
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Prepping Floors in Industrial, Commercial, and Institutional Environments
Benefits
- Excellent adhesion to properly prepared concrete
- Low shrinkage for stable, long- lasting repairs
- High compressive strength for load-bearing areas
- Opaque paste consistency for easy placement and build
- Fills cracks, spalls, and divots effectively
