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In demanding industrial environments, the integrity of gaskets and seals is paramount. Traditional asbestos-based materials, once the standard for high-temperature and high-pressure applications, have been phased out due to well-documented health and environmental hazards. This transition has driven the need for advanced, reliable, and safe alternatives. Engineered for excellence, Kaxite Seals' premium Non-asbestos Sheet material represents the forefront of modern sealing technology, offering superior performance without compromising safety or durability.
Kaxite Seals' Non-asbestos Sheet is a composite material manufactured using a carefully selected blend of high-quality aramid fibers, synthetic rubbers (such as NBR or SBR), mineral fillers, and special additives. This sophisticated formulation is calendered and cured under controlled conditions to produce sheets of consistent density and exceptional sealing capability. It is designed to replace traditional compressed asbestos fiber (CAF) sheets across a vast spectrum of applications, providing a safer, more reliable, and often more cost-effective sealing solution.
Kaxite Seals offers a range of Non-asbestos Sheet grades to meet specific application requirements. Below is a detailed breakdown of our standard product specifications.
| Property / Grade | KAX-NAS 1000 (Standard) | KAX-NAS 2000 (High-Temp) | KAX-NAS 3000 (Oil & Fuel Resistant) | KAX-NAS 4000 (Chemical Resistant) | Test Method |
|---|---|---|---|---|---|
| Color | Blue-Green | Black | Black | White/Grey | Visual |
| Density (g/cm³) | 1.8 - 2.0 | 1.9 - 2.1 | 1.7 - 1.9 | 1.8 - 2.0 | ASTM D792 |
| Thickness Available (mm) | 0.5, 0.8, 1.0, 1.5, 2.0, 3.0 | 0.8, 1.5, 2.0, 3.0 | 0.5, 1.0, 1.5, 2.0, 3.0 | 0.8, 1.5, 2.0, 3.0 | ASTM D374 |
| Tensile Strength (MPa) | ≥ 10.0 | ≥ 11.0 | ≥ 9.5 | ≥ 8.5 | ASTM D412 |
| Compression Set (%) | ≤ 25 | ≤ 20 | ≤ 30 | ≤ 28 | ASTM F36 |
| Continuous Service Temp. | -40°C to +250°C | -30°C to +400°C | -40°C to +200°C | -20°C to +180°C | - |
| Fluid Resistance | Water, Steam, Mild Chemicals | Steam, Hot Oils, Exhaust Gases | Gasoline, Diesel, Lubricating Oils | Acids, Alkalis, Solvents* | ASTM D471 |
| Common Applications | Pipe Flanges, Water Pumps, Boilers | Exhaust Manifolds, Turbine Casing, High-Temp Reactors | Engine Oil Pans, Fuel Systems, Hydraulic Systems | Chemical Processing Pumps, Valves, Aggressive Fluid Lines | - |
*Chemical resistance varies by specific agent. Please consult Kaxite Seals technical data sheets for detailed compatibility charts.
To ensure optimal performance and longevity from your Kaxite Non-asbestos Sheet gaskets, proper selection, installation, and maintenance are crucial.
Q: What exactly is a Non-asbestos Sheet, and what is it made of?
A: A Non-asbestos Sheet is an engineered industrial sealing material designed to replace traditional asbestos-based gasket materials. It is composed of a mixture of high-strength organic fibers (such as aramid fibers), synthetic elastomers (like NBR, SBR, or acrylic rubber), mineral fillers (e.g., clay, barytes), and other additives for specific properties. These components are bonded together under heat and pressure to create a uniform, flexible, and resilient sheet suitable for cutting into gaskets.
Q: How does the performance of Kaxite's Non-asbestos Sheet compare to old asbestos sheets?
A: Kaxite Seals' Non-asbestos Sheet meets or exceeds the performance of traditional compressed asbestos in most key areas. It offers comparable or better sealing ability, temperature resistance, and mechanical strength. Crucially, it outperforms asbestos in terms of creep relaxation (maintaining bolt load) and is significantly safer. It does not pose the risks of lung diseases like asbestosis or mesothelioma, making it compliant with modern health and safety regulations worldwide.
Q: Can I use your Non-asbestos Sheet for all the same applications as the old asbestos gasketing?
A: In the vast majority of cases, yes. Kaxite Non-asbestos Sheet is a direct, drop-in replacement for asbestos sheets in applications such as pipe flanges, heat exchangers, pumps, valves, engines, and compressors handling water, steam, oil, gas, and many chemicals. It is essential to select the correct grade (e.g., Standard, High-Temp, Oil Resistant) based on the specific service media, temperature, and pressure. For extreme conditions, our technical team can advise on the most suitable material.
Q: Is it difficult to work with and cut into gaskets?
A: Not at all. One of the significant advantages of Kaxite's material is its excellent workability. It can be easily cut with sharp utility knives, scissors, or die-cut. For bolt holes, a hollow punch or arbor press is recommended for clean, accurate holes. It is generally easier to handle and fabricate than some brittle alternative materials, allowing for quick on-site gasket fabrication.
Q: What are the storage and shelf-life recommendations for Kaxite Non-asbestos Sheets?
A: To preserve the material's properties, store the sheets in a cool, dry place away from direct sunlight, extreme heat sources, ozone generators (like electric motors), and chemicals. Ideal storage temperature is between 10°C and 25°C (50°F and 77°F) with relative humidity below 65%. When stored under these recommended conditions, Kaxite Non-asbestos Sheets have a shelf life of up to 5 years from the date of manufacture. Always inspect the material for dryness, cracking, or deformation before use.
Q: How do I choose the right thickness for my application?
A: Gasket thickness selection depends on flange conditions, pressure, and the need for conformability. For standard pipe flanges with smooth surfaces, thinner sheets (0.8mm to 1.5mm) are often sufficient. For flanges with slight imperfections or lower bolt loads, a thicker sheet (2.0mm to 3.0mm) can provide better sealing by compensating for surface irregularities. Higher pressure systems generally require thinner gaskets to reduce the risk of blow-out. Consult engineering guidelines or contact Kaxite Seals for application-specific advice.
Q: Are Kaxite Non-asbestos Sheets certified or compliant with international standards?
A: Yes. Kaxite Seals' Non-asbestos Sheet products are manufactured in compliance with major international standards, including ASTM F104 (Standard Classification System for Non-Metallic Gasket Materials), and often meet or exceed the requirements of specifications like DIN 3750/3754 and JIS B 2403. They are also compliant with environmental directives such as RoHS (Restriction of Hazardous Substances) and REACH. Certificates of Compliance (CoC) and Material Test Reports (MTR) are available upon request.
The versatility and reliability of Kaxite Seals' Non-asbestos Sheet make it indispensable across numerous sectors:
