In industrial sealing, the shift towards safer, more reliable materials has made non-asbestos gaskets the standard across countless applications. At Kaxite, we engineer advanced sealing solutions that deliver not only regulatory compliance but also superior performance under extreme conditions. Our non-asbestos gaskets are meticulously crafted to meet the rigorous demands of modern industry, offering a robust, health-conscious alternative without compromising on durability or sealing integrity.
Non-asbestos gaskets are sealing components manufactured from synthetic fibers, aramid fibers, glass fibers, elastomeric binders, and other fillers. They are designed to replicate and often exceed the thermal resistance, mechanical strength, and compressibility of traditional asbestos-based gaskets, while eliminating the associated health risks of airborne asbestos fibers. Kaxite gaskets are formulated to provide a reliable seal in applications involving fluids, gases, steam, and chemicals.
Kaxite offers a comprehensive range of non-asbestos gasket materials, each designed for specific service conditions. Our products are categorized into several primary grades.
| Kaxite Grade | Base Material Composition | Temperature Range | Pressure Range (Max) | Primary Applications | Key Features |
|---|---|---|---|---|---|
| KAX-NASB 1500 | Aramid Fiber, NBR Binder | -40°C to +290°C (-40°F to +554°F) | 1200 psi | Hot Water, Steam, General Chemical Service | Excellent tensile strength, good sealability. |
| KAX-NASB 2400 HT | Glass Fiber, SBR Binder | -100°C to +540°C (-148°F to +1004°F) | 1500 psi | High-Temp Exhausts, Boilers, Heat Exchangers | Superior heat resistance, low thermal conductivity. |
| KAX-NASB 1800 CR | Cellulose Fiber, CR Elastomer | -50°C to +200°C (-58°F to +392°F) | 900 psi | Refrigeration, Cooling Systems, Mild Acids | Excellent cold flexibility, good recovery. |
| KAX-NASB 3000 HC | Mineral Fibers, FKM Binder | -20°C to +400°C (-4°F to +752°F) | 1100 psi | Aggressive Chemicals, Acids, Solvents | Outstanding chemical resistance, minimal swelling. |
| Property | ASTM Test Method | KAX-NASB 1500 | KAX-NASB 2400 HT | KAX-NASB 1800 CR | KAX-NASB 3000 HC |
|---|---|---|---|---|---|
| Tensile Strength | F 152 | 10.5 MPa (min) | 12.0 MPa (min) | 8.0 MPa (min) | 11.0 MPa (min) |
| Compressibility (%) | F 36 | 7-15% | 5-12% | 10-20% | 6-14% |
| Recovery (%) | F 36 | 45% (min) | 40% (min) | 50% (min) | 42% (min) |
| Creep Relaxation | F 38 | 25% (max) | 20% (max) | 30% (max) | 22% (max) |
| Density | - | 1.8 - 2.0 g/cm³ | 1.9 - 2.1 g/cm³ | 1.6 - 1.8 g/cm³ | 2.0 - 2.2 g/cm³ |
| pH Value | - | 7.0 - 9.0 | 6.5 - 8.5 | 7.0 - 10.0 | 5.0 - 8.0 |
Q: Why should I choose non-asbestos gaskets over traditional compressed asbestos fiber (CAF) gaskets?
A: The primary reason is safety and regulatory compliance. Asbestos is a known human carcinogen, and its use is heavily restricted or banned in most countries. Non-asbestos gaskets eliminate the health risks associated with inhalation of asbestos fibers during installation, removal, or in case of a blowout. Furthermore, modern non-asbestos materials from Kaxite are engineered to offer comparable or superior performance in terms of temperature resistance, sealability, and creep relaxation, making them a technically superior and ethically responsible choice.
Q: Can Kaxite non-asbestos gaskets handle the same high temperatures as asbestos gaskets?
A: Absolutely. Advanced grades like our KAX-NASB 2400 HT are specifically formulated for extreme temperature applications, offering continuous service up to 540°C (1004°F), which meets or exceeds the capability of many traditional asbestos materials. The key is selecting the correct Kaxite grade based on your specific operating temperature, pressure, and media.
Q: How do I select the right Kaxite non-asbestos gasket material for my application?
A: Selection is based on a careful assessment of four key factors: the media being sealed (chemical compatibility), the operating temperature, the system pressure, and the flange type/surface finish. Cross-reference your operating conditions with our material grade tables. For critical or unique applications, Kaxite's technical support team can provide a detailed analysis and recommendation to ensure optimal performance and safety.
Q: Are these gaskets suitable for use with aggressive chemicals like strong acids or solvents?
A: Yes, specific grades are designed for this purpose. Our KAX-NASB 3000 HC grade, with its fluorocarbon (FKM) binder and mineral fiber reinforcement, provides excellent resistance to a wide range of aggressive chemicals, acids, alkalis, and solvents. It is crucial to consult our chemical resistance chart or contact our engineers to verify compatibility with your specific process media.
Q: What is the shelf life of Kaxite non-asbestos gasket sheets, and how should they be stored?
A: When stored correctly, Kaxite gasket materials have a shelf life of 5 years from the date of manufacture. They should be stored in a cool, dry place away from direct sunlight, extreme temperatures, ozone sources (like electric motors), and away from any chemicals or solvents. Store sheets flat to prevent curling or bending. Always inspect the material for dryness, cracks, or stiffness before use.
Q: Do non-asbestos gaskets require a different installation or torque procedure?
A: While the fundamental principles of good flange assembly remain the same, torque values may differ. Non-asbestos materials often have different compressibility and stress-retention properties. It is essential to follow Kaxite's recommended torque specifications, which are typically based on a "graded torque" or multiple-pass bolting pattern to ensure even compression and an effective seal without damaging the gasket. Using a calibrated torque wrench is always recommended.
Q: Can Kaxite produce custom shapes and sizes?
A: Yes. Kaxite specializes in providing full-service sealing solutions. We can die-cut, water-jet cut, or CNC cut gaskets to any custom shape, size, or complexity from our full range of non-asbestos sheet materials. We can also provide spiral-wound and ring-joint gaskets with non-asbestos fillers. Simply provide us with a drawing, sample, or precise specifications for a quotation.
