In the demanding world of industrial maintenance, pipeline integrity, and construction, the need for reliable, fast-acting, and durable sealing solutions is paramount. Traditional methods often involve downtime, extensive labor, and materials that may not withstand extreme pressures or corrosive environments. This is where advanced Injectable Sealant technology comes into play, offering a precision-engineered answer to complex leakage and sealing challenges. Kaxite, a leader in high-performance industrial solutions, has developed a next-generation injectable sealant system designed for excellence.
Kaxite's Injectable Sealant is a specially formulated, multi-component polymer system designed for injection directly into leak paths, joints, cracks, or voids under pressure. Unlike surface-applied coatings or wraps, this sealant cures in place, forming a permanent, pressure-resistant bond that integrates with the substrate material. It is engineered for a wide array of applications, including but not limited to: sealing flanges and pipe threads, repairing cracks in concrete and metal, encapsulating electrical penetrations, and grouting anchor bolts in heavy machinery.
To ensure the correct selection for your specific application, please review the detailed technical specifications of Kaxite's flagship injectable sealant product line below.
| Property | Standard Grade (KT-IS100) | High-Temp Grade (KT-IS200) | Food-Safe Grade (KT-IS300) | Test Method |
|---|---|---|---|---|
| Base Material | Modified Polyurethane | Epoxy Hybrid | FDA-Compliant Silicone | - |
| Color (Cured) | Light Gray | Dark Gray | White | Visual |
| Consistency (Uncured) | Medium-Viscosity Paste | High-Viscosity Paste | Low-Viscosity Liquid | ASTM D1084 |
| Cure Mechanism | Moisture-Activated | Heat-Activated | Moisture-Activated | - |
| Pot Life @ 25°C (77°F) | 45 minutes | 30 minutes | 60 minutes | - |
| Full Cure Time | 4-6 hours | 2-3 hours @ 100°C | 6-8 hours | - |
| Parameter | Standard Grade (KT-IS100) | High-Temp Grade (KT-IS200) | Food-Safe Grade (KT-IS300) | Test Method |
|---|---|---|---|---|
| Operating Temp. Range | -40°C to 120°C (-40°F to 248°F) | -20°C to 260°C (-4°F to 500°F) | -60°C to 200°C (-76°F to 392°F) | - |
| Max. Sealing Pressure | Up to 150 Bar (2175 psi) | Up to 200 Bar (2900 psi) | Up to 100 Bar (1450 psi) | Internal Pressure Test |
| Tensile Strength (Cured) | 18 MPa (2610 psi) | 35 MPa (5075 psi) | 8 MPa (1160 psi) | ASTM D638 |
| Elongation at Break | 350% | 15% | 500% | ASTM D638 |
| Shore Hardness | Shore A 85 | Shore D 75 | Shore A 45 | ASTM D2240 |
| Chemical Resistance | Excellent to Oils, Fuels, Water | Excellent to Acids, Alkalis, Solvents | Excellent to Water, Dilute Acids, Alkalis | Immersion Test |
| Package Size | 300ml Cartridge, 5kg Pail | 300ml Cartridge, 5kg Pail | 300ml Cartridge | - |
| Shelf Life | 18 Months | 24 Months | 12 Months | In unopened container @ 25°C |
How does the Kaxite injectable sealant work?
The Kaxite injectable sealant is typically a two-component system (resin and activator) or a moisture-activated single-component system. Using a specialized injection pump or gun, the material is forced under pressure into a prepared port leading to the leak path, crack, or void. As it fills the space, it displaces any water or contaminant and, upon contact with moisture or the activator, begins to cure rapidly. The curing process creates a flexible or rigid polymer (depending on the grade) that bonds to the substrate walls, permanently plugging the leak.
Can I use this sealant on a live, pressurized leak?
Yes, a primary advantage of Kaxite's injectable sealant, particularly the KT-IS100 and KT-IS300 grades, is its ability to seal active leaks. The moisture-activated curing mechanism allows it to set and cure even in the presence of seeping water or other fluids. For high-pressure leaks, it is recommended to use the injection process to create a temporary seal point to reduce pressure before applying the main sealant volume. Always consult the specific product data sheet for pressure limits and application guidelines for live leaks.
What surface preparation is required before application?
Surface preparation is critical for achieving a strong, lasting bond. For metal surfaces, remove all loose scale, rust, old sealant, and paint using wire brushing, sandblasting, or grinding. The surface should be clean and dry (unless using a moisture-cure grade on a wet surface). For concrete, cracks should be widened slightly ("V" out) to create a key, and all loose debris must be removed using air or water blasting. Degreasing with a solvent like acetone is recommended for oily surfaces. Proper preparation ensures optimal adhesion.
What is the difference between the Standard Grade (KT-IS100) and the High-Temp Grade (KT-IS200)?
The key differences lie in their chemical base, temperature resistance, and physical properties post-cure. KT-IS100 (Polyurethane-based) offers high flexibility (350% elongation) and is ideal for sealing joints and cracks subject to vibration, movement, or thermal cycling up to 120°C. KT-IS200 (Epoxy Hybrid-based) is formulated for extreme temperature stability and higher mechanical strength but with less flexibility. It is designed for rigid, high-temperature applications like steam lines, exhaust systems, or chemical processing equipment where temperatures can exceed 200°C.
Is the Food-Safe Grade (KT-IS300) certified for direct food contact?
Kaxite KT-IS300 is formulated using components that comply with FDA regulations 21 CFR §177.2600 for rubber articles intended for repeated use in contact with food. It is suitable for sealing applications in food and beverage processing plants, dairy equipment, and water treatment facilities where incidental contact with potable water or food products may occur. For direct, continuous food contact applications, please contact Kaxite technical support for specific validation documentation.
How long does the injected sealant take to cure, and when can the system be pressurized?
Cure time is dependent on product grade, temperature, and humidity. Under standard conditions (25°C/77°F, 50% RH), KT-IS100 becomes tack-free in about 30 minutes and is fully cured in 4-6 hours. The system can typically withstand low pressure after 1-2 hours and full rated pressure after full cure. KT-IS200 cures faster with applied heat. Always refer to the technical data sheet for the specific product. A pressure test with water or inert gas is recommended before returning critical systems to full service.
What equipment is needed to apply Kaxite injectable sealant?
Application requires an injection pump capable of delivering high pressure. For cartridge-based products, a standard caulking gun can be used for low-pressure applications into pre-made ports. For professional and high-pressure injection, Kaxite recommends using a dual-component meter-mix-dispense pump or a dedicated high-pressure single-component injection pump. Additional tools include port installation tools (for creating injection points on flanges), cleaning solvents, and surface preparation tools.
Can the cured sealant be removed if needed?
Removal of fully cured injectable sealant can be challenging due to its strong adhesive properties. For disassembly or repair, mechanical methods are usually required. Flexible grades (like KT-IS100/300) can often be cut and peeled away with scraping tools. Rigid grades (like KT-IS200) may require careful grinding or drilling. Using a release agent on threaded fittings before application is a recommended practice if future disassembly is anticipated. Consult Kaxite for specific removal procedures.