In industrial sealing, the shift from traditional asbestos-based materials to modern, safer, and often superior alternatives is complete. Non-Asbestos Gaskets represent the industry standard, engineered to deliver reliable performance without the associated health and environmental risks. At Kaxite, we specialize in manufacturing advanced non-asbestos gasket materials that meet the rigorous demands of today’s complex fluid sealing applications. These materials combine safety with exceptional thermal, chemical, and pressure resistance, making them suitable for a vast array of industries from oil & gas and chemical processing to power generation and marine engineering.
Choosing Kaxite gaskets means opting for a solution built on safety, durability, and technical excellence. Our materials are meticulously formulated and tested to ensure they perform predictably under stress.
Our product range is categorized by base material and reinforcement to help you select the optimal grade. Below is a detailed specification table for our flagship grades.
| Kaxite Grade | Key Composition | Temperature Range | Pressure Range | Density (g/cm³) | Thickness Available (mm) | Primary Applications |
|---|---|---|---|---|---|---|
| KAX-NAF 1100 | Aramid Fiber, NBR Binder | -40°F to 750°F (-40°C to 400°C) | Up to 1500 psi (103 bar) | 1.6 - 1.8 | 0.5, 0.8, 1.0, 1.5, 2.0 | General purpose, steam, hot oils, mild chemicals |
| KAX-GF 2100 | Glass Fiber, SBR Binder | -100°F to 850°F (-73°C to 454°C) | Up to 2000 psi (138 bar) | 1.8 - 2.0 | 0.8, 1.0, 1.5, 2.0, 3.0 | High-temp exhausts, boiler manways, heat exchangers |
| KAX-CF 3100 | Carbon Fiber, NBR Binder | -40°F to 900°F (-40°C to 482°C) | Up to 2500 psi (172 bar) | 1.5 - 1.7 | 0.5, 1.0, 1.5, 2.0 | Aggressive chemicals, acids, solvents, high-load flanges |
| KAX-HP 4100 | Multi-Reinforcement, CR Binder | -60°F to 500°F (-51°C to 260°C) | Up to 3000 psi (207 bar) | 2.0 - 2.2 | 1.5, 2.0, 3.0 | High-pressure piping, pump casings, compressor systems |
To further aid in material selection, here is a comparison of key performance metrics across our standard grades, tested according to ASTM F104 and other relevant standards.
| Property (ASTM Test) | KAX-NAF 1100 | KAX-GF 2100 | KAX-CF 3100 | KAX-HP 4100 |
|---|---|---|---|---|
| Tensile Strength (F152) | 8,000 psi (55 MPa) | 10,000 psi (69 MPa) | 12,000 psi (83 MPa) | 14,000 psi (97 MPa) |
| Compressibility (F36) | 7 - 12% @ 10,000 psi | 5 - 10% @ 10,000 psi | 8 - 15% @ 10,000 psi | 4 - 8% @ 10,000 psi |
| Recovery (F36) | 45% min | 40% min | 50% min | 35% min |
| Creep Relaxation (F38) | 25% max | 20% max | 30% max | 15% max |
|
Fluid Resistance (F146) % Volume Change |
+15% in ASTM Oil #3 +5% in Water |
+10% in ASTM Oil #3 +2% in Water |
+5% in Acid (10% H2SO4) +8% in Fuel B |
+8% in ASTM Oil #3 +3% in Water |
What exactly is a non-asbestos gasket?
A non-asbestos gasket is a sealing component designed to prevent leakage between two mating flanges, manufactured entirely without asbestos fibers. Instead, it uses a blend of safer, high-performance synthetic fibers (such as aramid, glass, or carbon fiber) bound together with an elastomeric polymer (like NBR or SBR). This construction provides comparable or superior sealing, temperature, and pressure capabilities while eliminating the health hazards linked to asbestos exposure.
Are Non-Asbestos Gaskets as durable and effective as the old asbestos-based ones?
Yes, modern non-asbestos materials from reputable manufacturers like Kaxite are often more effective. Advancements in fiber technology and compound formulation have resulted in gaskets that offer excellent compressibility, recovery, and creep resistance. They are specifically engineered to handle higher temperatures and more aggressive chemicals than many traditional asbestos materials, providing longer service life and more reliable performance in demanding applications.
How do I select the right Kaxite non-asbestos gasket material for my application?
Selection depends on four critical application parameters: the media (chemical compatibility), temperature, pressure, and flange type/surface finish. First, check the chemical resistance chart for the media. Then, ensure the material's temperature and pressure ratings exceed your operating conditions. For high-pressure, raised face flanges, a denser grade like KAX-HP 4100 is suitable. For general steam or hot oil service, KAX-NAF 1100 is an excellent choice. Our technical support team can provide detailed selection guidance.
What are the storage and handling recommendations for non-asbestos gasket sheets?
Store Kaxite gasket materials in a cool, dry place away from direct sunlight, extreme temperatures, and moisture. Keep them flat on a shelf or pallet to prevent bending or deformation. Avoid contact with oils, solvents, or corrosive chemicals before installation. Always handle with clean hands or gloves to prevent contamination of the sealing surfaces, which could compromise the seal integrity.
What is the proper installation torque procedure for these gaskets?
Always follow a cross-bolting pattern (star pattern) to ensure even compression across the flange face. Tighten bolts in multiple incremental passes (typically 30%, 60%, and 100% of the final recommended torque) rather than in one step. The final torque value should be based on the flange rating, bolt size/grade, and the gasket material. Refer to ASME PCC-1 guidelines or consult Kaxite for specific torque recommendations for our materials to achieve optimal sealing stress without damaging the gasket or flange.
Can Kaxite provide custom-shaped gaskets or special formulations?
Absolutely. As a manufacturer, Kaxite offers full customization services. We can die-cut, water-jet cut, or CNC cut gaskets to any shape or size from our standard sheet stock. For unique applications with extreme temperature, pressure, or chemical challenges, we can work with you to develop a special formulation tailored to your specific requirements, ensuring the highest possible performance and safety.
