Injectable sealant is a high-performance material designed to fill, block, and seal voids, cracks, and leaks in various substrates. Unlike surface-applied coatings, this specialized sealant is injected directly into the problem area under pressure, ensuring deep penetration and a lasting, resilient seal from within the structure itself. Kaxite Sealing has engineered its advanced injectable sealant formulations to address the most demanding industrial, commercial, and infrastructure applications, offering superior durability and long-term protection against water ingress, air leakage, and chemical corrosion.
### Core Product Features & Technology
The effectiveness of Kaxite Sealing's injectable sealant stems from its proprietary blend of reactive polymers and functional additives. Upon injection, the material flows easily into the finest fissures. It then cures to form a flexible, adhesive, and impermeable barrier that accommodates substrate movement and thermal cycling without losing integrity.
**Key Features Include:**
* **Deep Penetration:** Low-viscosity formula ensures it reaches the root cause of leaks and cracks.
* **Elastic Recovery:** Cured sealant remains flexible, stretching and compressing with joint movement.
* **Excellent Adhesion:** Bonds tenaciously to a wide range of materials including concrete, masonry, metal, and many plastics.
* **Chemical & Weather Resistance:** Impervious to water, UV exposure, and a broad range of industrial chemicals.
* **Rapid Cure Times:** Available in formulations with varying set times to suit different project timelines.
* **Environmentally Stable:** Performs reliably across a wide temperature range.
### Detailed Product Specifications & Parameters
To ensure proper selection and application, below are the detailed technical specifications for Kaxite Sealing's flagship injectable polyurethane sealant, **Series KX-9000**.
**Physical & Mechanical Properties:**
| Property |
Test Method |
Value / Result |
Unit |
| Base Chemistry |
- |
Hydrophobic Polyurethane |
- |
| Viscosity (Mixed, @ 25°C) |
ASTM D2196 |
800 - 1,200 |
cPs |
| Density (Mixed) |
ASTM D1475 |
1.05 |
g/cm³ |
| Gel Time (@ 25°C) |
- |
45 - 60 |
seconds |
| Tack-Free Time |
ASTM C679 |
8 - 10 |
minutes |
| Shore A Hardness (Full Cure) |
ASTM D2240 |
35 ± 5 |
Shore A |
| Tensile Strength |
ASTM D412 |
2.8 |
MPa |
| Elongation at Break |
ASTM D412 |
> 450% |
% |
| Adhesion to Concrete (Pull-Off) |
ASTM D4541 |
> 2.0 (Cohesive Failure) |
MPa |
| Operating Temperature Range |
- |
-40°C to +90°C |
°C |
**Application Specifications:**
- Packaging: Available in 600ml cartridges, 5-gallon pails, and 55-gallon drums.
- Mixing Ratio: 1:1 by volume (Component A : Component B).
- Required Equipment: Dual-component injection pump with static mixer nozzle.
- Substrate Preparation: Surface must be clean, dry, and free of loose debris. Drilling of injection ports is typically required.
- Injection Pressure: Typically 50 - 200 psi, depending on crack width and material absorption.
- Cure Schedule: 90% cure achieved in 4-6 hours at 25°C; full mechanical properties in 24-48 hours.
- Coverage: Varies significantly with crack volume; approximately 1.0 kg per linear meter of a 2mm wide x 50mm deep crack.
### Primary Applications and Use Cases
Kaxite Sealing's injectable sealant is a versatile solution for proactive maintenance and critical repair across multiple sectors.
**Infrastructure & Civil Engineering:**
* Sealing cracks in concrete bridges, parking decks, and retaining walls.
* Waterproofing expansion joints and construction joints in tunnels and subways.
* Stopping active leaks in basements, foundations, and underground structures.
**Industrial & Manufacturing Facilities:**
* Sealing leaks in concrete secondary containment areas.
* Filling voids and sealing joints in factory floors subject to heavy loads.
* Preventing water and air infiltration in plant walls and roofing seams.
**Marine & Waterfront Structures:**
* Repairing cracks in docks, piers, and seawalls.
* Waterproofing sheet pile interlocks and bulkheads.
**Commercial Buildings:**
* Remediating water leaks in plaza decks and below-grade walls.
* Sealing perimeter joints and penetrations in building envelopes.
### Kaxite Sealing Injectable Sealant: Frequently Asked Questions (FAQ)
**What is the main advantage of an injectable sealant over a topical coating?**
The primary advantage is its ability to address the problem at its source. Instead of forming a barrier on the surface, the injectable sealant is forced deep into cracks and voids, creating a seal within the substrate that is less vulnerable to surface damage, UV degradation, and physical wear.
**How do I know if Kaxite Sealing's injectable sealant is suitable for my specific leak?**
Our KX-9000 Series is designed for dynamic cracks (those that move) and active leaks in concrete and masonry. It is highly effective against pressurized water. For a static, fine hairline crack with no moisture, a different product like a low-modulus epoxy might be recommended. Consulting with Kaxite Sealing's technical support team is always advised for project-specific guidance.
**What is the shelf life of the product, and how should it be stored?**
The shelf life of Kaxite Sealing's two-component injectable sealant is 12 months from the date of manufacture when stored in its original, unopened containers at temperatures between 10°C and 25°C (50°F and 77°F). Avoid exposure to direct sunlight, moisture, and extreme heat.
**Can it be applied to a wet surface or used to stop an active leak?**
Yes, this is one of its key capabilities. Kaxite Sealing's hydrophobic polyurethane formula reacts with water, forming an expansive foam-like gel that blocks flowing water. It is specifically engineered to cure and create a permanent seal even in damp conditions or against active seepage.
**What is the difference between hydrophilic and hydrophobic polyurethane sealants?**
Hydrophilic sealants attract and absorb water, which helps them swell and cure in damp environments. Hydrophobic sealants, like our KX-9000 Series, repel water. They react with minimal moisture to form a tight seal but are primarily cured by the chemical reaction between their two components, offering more predictable gel times and superior long-term stability in varying humidity.
**What safety precautions are necessary during application?**
Applicators must wear appropriate personal protective equipment (PPE), including safety glasses, chemical-resistant gloves (nitrile or neoprene), and protective clothing. Use in a well-ventilated area. Refer to the product's Safety Data Sheet (SDS) for complete handling, first-aid, and disposal information.
**How long does the injection seal last?**
When applied correctly to a properly prepared substrate, a seal created with Kaxite Sealing's injectable sealant is designed to be permanent, lasting for the functional life of the structure. Its flexibility allows it to withstand repeated cyclical movement without debonding or cracking.
**What equipment is required for application?**
Professional application requires a two-component injection pump capable of delivering a precise 1:1 mix ratio. The pump must be fitted with a static mixer nozzle to ensure complete blending of components immediately before injection. For small repairs, a manual cartridge gun with a mixing nozzle can be used with our cartridge packaging.
**Can the cured sealant be painted over?**
Yes, once fully cured (after 48 hours), the sealant can be coated with most standard acrylic, epoxy, or urethane-based paints. It is recommended to test paint adhesion on a small, inconspicuous area first.
**Does Kaxite Sealing offer technical support or on-site training?**
Absolutely. Kaxite Sealing provides comprehensive technical support, including product selection assistance, method specification review, and detailed application guidelines. We also offer on-site training and demonstration services for contractors and maintenance teams to ensure optimal results.