What Is Sealer Boss Krak Attack?
Sealer Boss Krak Attack is a professional two-part hybrid urethane concrete crack and spall repair system designed to repair concrete cracks, spalls, and broken control joints. Its ultra-low-viscosity formula flows into properly prepared repair areas to create a hard, high-strength repair. Under typical conditions, repaired areas are ready for grinding or traffic in approximately 10-15 minutes. Krak Attack is commonly used on garage floors, driveways, sidewalks, patios, pool decks, warehouses, and other concrete surfaces requiring durable repairs and a rapid return to service. It is intended for professional use on residential and commercial concrete repair projects.
Key Benefits
- Professional Crack & Spall Repair System Repairs concrete cracks, spalls, and damaged control joints.
- Ultra-Low Viscosity Formula Flows into properly prepared cracks and repair areas.
- High-Strength Formula Forms a durable, hard-curing repair.
- Fast Return to Service Ready for grinding or traffic in approximately 10-15 minutes under typical conditions.
- Compatible with Decorative Concrete Systems Suitable for use before many decorative concrete coatings and overlays.
- Professional Use Intended for residential and commercial concrete repair projects.
- VOC Compliant Complies with VOC requirements in most areas of the United States and Canada.*
- Available in 1 & 2 Gallon Kits Two kit sizes for different project requirements.
*Always verify local VOC regulations before use.
Recommended Applications
Sealer Boss Krak Attack is suitable for repairing damaged concrete in residential and commercial applications.
Repair Types
- Concrete Cracks
- Concrete Spalls
- Broken Control Joints
Surface Types
- Concrete Floors
- Driveways
- Sidewalks
- Patios
- Pool Decks
Common Projects
- Garages
- Warehouses
- Auto Service Centers
- Commercial Floors
- Residential Concrete Surfaces
Features
Two-Part Hybrid Urethane
Two-part hybrid urethane formula creates a hard-curing repair for concrete cracks, spalls, and broken control joints.
Ultra-Low Viscosity
Ultra-low-viscosity formula flows into properly prepared cracks and repair areas for effective penetration before curing.
Fast Setting
Sets quickly under typical conditions, allowing repaired areas to be ready for grinding or traffic in approximately 10-15 minutes.
High Strength
Forms a hard, high-strength repair for damaged concrete surfaces in residential and commercial applications.
1:1 Mix Ratio
Simple 1:1 mix ratio by volume allows accurate measuring and mixing before application.
Ready for Grinding
Under typical conditions, repaired areas can be ground flush approximately 10-15 minutes after application.
Professional Use
Intended for professional concrete repair projects requiring rapid repairs and minimal downtime.
VOC Compliant
VOC compliant for most areas of the United States and Canada. Always verify local VOC regulations before use.
Specifications
| Specification | Value |
| Brand | Sealer Boss |
| Product Name | Krak Attack |
| Product Type | Two-Part Hybrid Urethane Crack & Spall Repair System |
| Mix Ratio | 1:1 by Volume |
| Pot Life | Approximately 2 Minutes |
| Tack-Free Time | Approximately 4-5 Minutes |
| Ready for Grinding | Approximately 10-15 Minutes |
| Hardness | Shore D 70 |
| Application Temperature | 50F-80F |
| VOC Content | Less than 420 g/L (Mixed Part A & Part B) |
| Shelf Life | Up to 1 Year (Unopened) |
| Available Sizes | 1 Gallon Kit, 2 Gallon Kit |
Coverage Guide
Coverage varies depending on crack width, depth, substrate porosity, surface texture, and application method.
Theoretical Coverage
- 1 Gallon Kit fills approximately 243.3 cubic inches.
Example Coverage
- Approximately 324 linear feet of crack measuring 1/4 inch wide by 1/4 inch deep.
Note: Actual coverage will vary depending on crack width, depth, substrate porosity, surface texture, and application method.
Available Sizes
Choose the kit size that best suits your repair project. 1 Gallon Kit Suitable for smaller crack, spall, and control joint repair projects. 2 Gallon Kit Suitable for larger residential and commercial concrete repair projects.
How to Apply
Follow the manufacturer's application recommendations for best results.
- Prepare the Repair Area Clean and prepare the concrete crack, spall, or damaged control joint before application.
- Mix Equal Parts Combine Part A and Part B using the recommended 1:1 mix ratio by volume.
- Apply the Material Pour the mixed material into the prepared repair area immediately after mixing.
- Allow the Repair to Cure Under typical conditions, allow approximately 10-15 minutes before grinding or opening the repaired concrete surface to traffic.
- Grind Flush if Required Grind the repaired area flush before applying decorative concrete coatings, overlays, or other surface finishes, if applicable.
Note: Always follow the current manufacturer's technical data sheet and application recommendations.
Compatible Products
Sealer Boss Krak Attack is commonly used with the following decorative concrete products.
Surface Preparation
- Concrete Cleaners Clean concrete surfaces before crack and spall repair.
- Crack Chasing Blades Open and prepare concrete cracks before repair.
- Grinding Equipment Prepare damaged concrete and grind repaired areas flush.
Concrete Restoration
- Decorative Concrete Overlays Restore repaired concrete surfaces before applying a decorative finish.
- Concrete Stains Apply decorative color after repairs have been completed.
Surface Protection
- Concrete Sealers Protect repaired concrete surfaces after restoration is complete.
Why Use Sealer Boss Krak Attack
Sealer Boss Krak Attack is formulated for professional concrete crack and spall repair where rapid return to service, high-strength repairs, and compatibility with decorative concrete systems are important.
- Fast Return to Service
- High-Strength Concrete Repair
- Two-Part Hybrid Urethane Formula
- Ready for Grinding in Approximately 10-15 Minutes
- Compatible with Many Decorative Concrete Systems
When properly prepared according to the manufacturer's recommendations.
Frequently Asked Questions
What is Sealer Boss Krak Attack?
Sealer Boss Krak Attack is a two-part hybrid urethane concrete crack and spall repair system for repairing concrete cracks, spalls, and broken control joints. It is intended for professional concrete repair applications.
What types of concrete damage can it repair?
Krak Attack repairs concrete cracks, concrete spalls, broken control joints, and other localized concrete damage before coatings, overlays, or concrete sealers are applied.
Can it repair broken control joints?
Yes. Krak Attack is suitable for repairing broken control joints where continued joint movement is not expected.
How quickly does it cure?
Under typical conditions, Krak Attack becomes tack-free in approximately 4-5 minutes and is ready for grinding or traffic in approximately 10-15 minutes.
When can repaired concrete be ground?
Repaired areas may be ground flush approximately 10-15 minutes after application under typical conditions.
Can it be coated after repair?
Yes. Once cured and ground flush, repaired areas can be prepared for decorative concrete coatings, overlays, and concrete sealers.
Is it suitable for indoor and outdoor concrete?
Yes. Krak Attack is suitable for indoor and outdoor concrete repair projects, including garages, driveways, patios, pool decks, sidewalks, and commercial concrete floors.
Can Krak Attack be used before decorative concrete overlays?
Yes. Once cured and ground flush, repaired concrete can be prepared for many decorative concrete overlay systems according to the manufacturer's recommendations.
What is the mix ratio?
Krak Attack uses a 1:1 mix ratio by volume.
What sizes are available?
Krak Attack is available in 1 Gallon Kit and 2 Gallon Kit sizes.
Is Sealer Boss Krak Attack for professional use?
Yes. Krak Attack is intended for professional use, but it's also suitable for experienced DIYers. Always follow the manufacturer's technical data sheet and safety data sheet before use.