TF Pure Concrete Repair Mortar is a one-component, matte finish, interior/exterior concrete coating and structural repair mortar. The patch and repair kit is suitable for small repairs anywhere damaged concrete is in need of a fill or quick surface treatment.
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TF Structural Repair Mortar Comprehensive Product Information
TF Structural Repair Mortar
Introduction
TF Structural Repair Mortar is a high-performance, two-component concrete repair and restoration product developed by Terrafuse Inc., a leader in durable concrete solutions since 2013. Specifically designed for professional contractors and DIY enthusiasts, this mortar addresses a wide range of concrete damage, from minor cracks and spalling to major structural rebuilds. Unlike traditional repair methods that require demolition and replacement, TF Structural Mortar chemically bonds to existing concrete, providing a permanent, stronger-than-original fix with minimal downtime. The product is particularly noted for its versatility in applications like dam restoration, driveways, staircases, and industrial floors, making it an essential tool for extending the lifespan of aging infrastructure.
Product Description
TF Structural Repair Mortar is a two-part system consisting of **Part A** (the powder component, typically a 13 lb pail of pre-blended cementitious materials) and **Part B** (a liquid activator, approximately 0.6–0.7 gallons per bag). This formulation creates a rapid-curing, polymer-modified mortar that adheres exceptionally well to cured concrete substrates without the need for primers, scrub coats, or mechanical roughening. Once mixed, the mortar can be applied from feather-edge thickness up to several inches deep, allowing for both thin overlays and deep structural fills.
Key to its performance is the chemical bonding mechanism, which integrates the new material seamlessly with the old, achieving compressive strengths exceeding 10,000 psi—far surpassing standard concrete. The mortar is suitable for interior and exterior use, resisting freeze-thaw cycles, water penetration, and chemical exposure. It's also vapor-permeable, allowing trapped moisture to escape and preventing delamination over time. For optimal results, ensure the substrate's vapor pressure is below 3 lbs./1000 ft²/24hr to maintain long-term adhesion.
Key Features and Benefits
Rapid Curing**: Achieves a 4-hour set time, enabling same-day completion of repairs and overlays. This minimizes project disruption, ideal for high-traffic areas like dams or public walkways.
Superior Strength and Durability: Bonds chemically to create a monolithic structure stronger than the original concrete, with excellent tensile and flexural properties to handle dynamic loads.
Versatile Consistency: Mix ratios allow customization from pourable slurry for deep fills to trowelable paste for skim coats. Small adjustments in Part B volume can significantly alter workability.
No Primers Required: Direct application saves time and labor, reducing costs by up to 50% compared to traditional methods.
Eco-Friendly and Low Maintenance**: Low VOC emissions, non-shrink formula, and resistance to cracking ensure a sustainable, long-lasting repair without ongoing upkeep.
Additive Compatibility: Pair with TF Ice (for hot weather, extending pot life) or TF Heat (for cold weather, accelerating cure) for year-round performance.
Applications
TF Structural Repair Mortar excels in demanding environments where structural integrity is paramount:
Dam and Infrastructure Restoration**: Seals leaks, rebuilds eroded sections, and reinforces spillways with minimal downtime.
Horizontal and Vertical Repairs**: Driveways, garage floors, pool decks, and walls—handles slopes up to 2:1 without slumping.
Industrial and Commercial Use**: Warehouse floors, bridges, and marine structures, where it withstands heavy abrasion and de-icing salts.
Architectural Overlays**: Provides a smooth base for decorative coatings, with coverage up to 10 sq. ft. per kit at skim coat thickness.
It's not recommended as a final wear surface for ultra-high-traffic areas without a topcoat, but it serves as an unbeatable foundation layer.
Mixing and Application Instructions
1. Preparation: Clean the substrate thoroughly—remove loose debris, oils, and existing sealers using pressure washing or mechanical abrasion. Dampen (but do not saturate) the surface for optimal bonding.
2. Mixing: In a clean pail, add Part A powder. Slowly incorporate Part B liquid while stirring with a drill mixer at low speed (300–500 RPM) for 2–3 minutes until uniform. Avoid overmixing to prevent air entrapment. Mix only what can be used in 10–15 minutes, as pot life is short.
3. Application: Apply immediately using steel trowels, screeds, or pumps for larger areas. For vertical applications, build in layers no thicker than 2 inches. Feather edges for seamless transitions. In hot weather (>80°F), use TF Ice; in cold (<50°F), use TF Heat.
4. Curing: Protect from direct sun or rain for the first 4 hours. Full cure in 24–48 hours; light foot traffic after 4 hours, vehicular after 24 hours.
5. Cleanup: Tools can be cleaned with water before set; hardened material requires mechanical removal.
Always wear PPE (gloves, goggles, dust mask) during handling.
Technical Specifications
| Property | Specification |
|---------------------------|----------------------------------------|
Compressive Strength** | >10,000 psi @ 28 days |
Bond Strength** | >2,000 psi (ASTM C-882) |
Flexural Strength** | >1,500 psi |
Pot Life** | 10–15 minutes @ 70°F |
Coverage** | ~10 sq. ft. @ 1/8" thickness per kit |
Thickness** | Feather-edge to 4" (multi-layer) |
Shelf Life** | 12 months (unopened) |
Packaging** | 13 lb Part A + 0.7 gal Part B kit |
Test data confirms it meets or exceeds ASTM C-928 standards for polymer-modified structural repair mortars.
Safety and Storage
Non-toxic but irritant—avoid skin/eye contact and inhalation of dust. Store in a cool, dry place (40–90°F) away from moisture. Dispose of waste per local regulations.
About Terrafuse Inc.
Founded in 2013, Terrafuse specializes in innovative concrete restoration products trusted by professionals worldwide. Their commitment to quality is evident in real-world durability tests, like a school staircase repair that held up flawlessly for 11 years. For bulk pricing or technical support, visit terrafuse.com or contact their team directly.
In summary:
TF Structural Repair Mortar Part A and B represents a game-changer in concrete repair, offering unmatched strength, speed, and simplicity for projects big and small. Whether restoring a historic dam or patching a home driveway, it's the reliable choice for lasting results.