In the pursuit of reliable, safe, and durable sealing solutions, industries worldwide are transitioning from traditional materials to advanced, environmentally responsible alternatives. Non-Asbestos Gaskets have emerged as the superior choice, offering exceptional performance without the health and regulatory concerns associated with asbestos. At Kaxite Sealing, we engineer premium non-asbestos gasket materials designed to meet the rigorous demands of modern fluid handling systems, ensuring leak-free operation, enhanced safety, and long-term cost efficiency.
Our commitment at Kaxite Sealing is to provide sealing solutions that not only match but often exceed the thermal and mechanical properties of legacy asbestos-based materials. We achieve this through sophisticated compounding of high-strength aramid fibers, synthetic rubbers, mineral fillers, and advanced binding agents. The result is a robust, versatile gasket material suitable for a vast array of applications, from chemical processing and power generation to oil & gas, marine, and pharmaceutical industries.
Our product range includes several specialized grades, each optimized for specific service conditions. Below is a detailed overview of our flagship non-asbestos gasket materials.
| Grade Code | Primary Reinforcement | Binder | Color | Temperature Range | Pressure Range | Key Applications |
|---|---|---|---|---|---|---|
| KX-NAF 1500 | Aramid Fiber | NBR Rubber | Blue | -40°C to +120°C (-40°F to +250°F) | Up to 1500 psi (100 bar) | General purpose, water, air, hydraulic oils, fuels. |
| KX-NAF 2100 | Aramid/Carbon Fiber Blend | SBR Rubber | Black | -30°C to +200°C (-22°F to +390°F) | Up to 2100 psi (145 bar) | Hot oils, saturated steam, mild chemical services. |
| KX-NAC 3000 | Inorganic Fibers (Aramid/Ceramic) | CR Rubber | Green | -50°C to +280°C (-58°F to +535°F) | Up to 3000 psi (205 bar) | High-temperature steam, heat transfer fluids, exhaust systems. |
| KX-NAQ 4000 | Aramid Fiber | FKM (Viton®) Rubber | Brown | -20°C to +230°C (-4°F to +445°F) | Up to 1500 psi (100 bar) | Aggressive chemicals, acids, solvents, refinery streams. |
| Property | Test Standard | Typical Value | Unit |
|---|---|---|---|
| Density | ASTM D1180 | 1.85 | g/cm³ |
| Tensile Strength | ASTM D1414 | 12.5 | N/mm² |
| Compressibility (10,000 psi) | ASTM F36 | 12% | - |
| Recovery (10,000 psi) | ASTM F36 | 50% | - |
| Creep Relaxation | ASTM F38 | 25% | - |
| Stress Relaxation | DIN 52913 | 15% | - |
| Fluid Resistance (Oil ASTM #3, 100°C, 24h) | ASTM D1460 | +5% (Volume Change) | - |
Q: What exactly are Non-Asbestos Gaskets made from?
A: Non-Asbestos Gaskets are composite materials manufactured using safe, high-performance substitute fibers. At Kaxite Sealing, our formulations primarily use aramid fibers (e.g., Kevlar®-type), synthetic rubbers (like NBR, SBR, FKM), and various inorganic fillers and additives. These components are calendered or beater-saturated to create sheets with uniform density, strength, and sealing characteristics tailored for specific industrial environments.
Q: Are Non-Asbestos Gaskets as durable and effective as traditional asbestos gaskets?
A: Yes, modern high-quality Non-Asbestos Gaskets from reputable manufacturers like Kaxite Sealing are engineered to meet or exceed the performance of asbestos-based materials. They offer comparable or superior thermal resistance, compression strength, and creep relaxation. Furthermore, they often provide better chemical resistance to modern fluids and are more consistent in quality, leading to more predictable and reliable sealing performance.
Q: How do I select the correct non-asbestos gasket grade for my application?
A: Selection depends on four critical service parameters: Temperature, Pressure, Media (the fluid being sealed), and Flange conditions. Cross-reference your operating temperature and pressure with our material grade charts. Then, verify chemical compatibility with the media—our KX-NAQ 4000 (FKM-based) is excellent for chemicals, while KX-NAC 3000 is ideal for high-temperature steam. For specific applications, consulting with Kaxite Sealing's technical support team is recommended.
Q: What are the proper installation torques for Non-Asbestos Gaskets?
A: Correct bolt torque is crucial for optimal performance. While specific torque values depend on flange size, bolt grade, and gasket type, a general guideline for our non-asbestos materials is to use a torque that achieves 25-30% compression of the gasket's original thickness. We provide detailed torque-pressure tables for our products. It is always best practice to follow a cross-pattern tightening sequence to ensure even compression and avoid flange distortion.
Q: Can Kaxite Sealing Non-Asbestos Gaskets be used in food and pharmaceutical applications?
A: We offer specific grades that are compliant with relevant standards for incidental food contact, such as those guided by FDA regulations in the United States and EC 1935/2004 in Europe. These grades use specially formulated binders and are manufactured under strict hygiene controls. Please inquire about our FDA-compliant series for such applications.
Q: Do you provide Non-Asbestos Gaskets in custom shapes and sizes?
A: Absolutely. Kaxite Sealing provides a full range of services. We supply material in sheets, rolls, and coils for in-house fabrication. Additionally, we offer precision die-cutting, CNC cutting, and waterjet cutting services to produce custom gaskets in any shape—circles, rings, complex geometries—with precise dimensions, bolt holes, and alignment features, ready for installation.
Q: How should non-asbestos gasket sheets be stored?
A: To preserve material properties, store sheets flat in a cool, dry, and dark environment away from direct sunlight, ozone sources (like electric motors), and extreme temperatures. Ideal storage temperature is between 10°C and 25°C (50°F and 77°F). Avoid bending or placing heavy objects on the sheets to prevent permanent deformation or creasing.
The versatility of Kaxite Sealing Non-Asbestos Gaskets makes them indispensable in numerous sectors:
