For decades, asbestos was a primary material in high-temperature and friction applications due to its heat resistance and durability. However, its severe health risks, including lung cancer and mesothelioma, led to a global ban. A non-asbestos sheet is the modern, safe alternative. It is a manufactured composite material engineered to replicate and often exceed the performance of traditional asbestos sheets without any health hazards. Kaxite Sealing specializes in producing premium-grade non-asbestos sheets that deliver exceptional sealing, gasketing, and insulation performance for demanding industrial environments.
Understanding the technical specifications is crucial for selecting the right non-asbestos sheet for your application. Below are the standard parameters for Kaxite Sealing's general-purpose high-performance grade, KS-NAF 3000.
| Parameter / Property | Test Method | Typical Value / Range | Significance for Application |
|---|---|---|---|
| Base Material Composition | Material Analysis | Aramid fibers, NBR binder, fillers, elastomers | Determines basic chemical compatibility and temperature range. |
| Thickness | ASTM F36 | 0.5mm (0.020") to 3.0mm (0.125") | Available in standard rolls/sheets; customizable. Critical for flange gap and compression. |
| Density | ASTM D1180 | 1.6 - 1.8 g/cm³ | Indicates material compactness, influencing strength and sealing capability. |
| Tensile Strength | ASTM F152 | ≥ 12 MPa (Min.) | Measures resistance to tearing and blow-out under pressure. |
| Compression Set | ASTM F36 | ≤ 25% (at 25°C, 24hrs) | Lower values indicate better recovery and long-term sealing performance. |
| Temperature Range | Continuous Service | -40°C to +290°C (-40°F to +550°F) | Defines the safe operating range for hot and cold applications. |
| Pressure Rating | Application Specific | Up to 1500 PSI (Water/Oil) | Maximum recommended sealing pressure for static flanges. |
| pH Resistance | Immersion Test | Stable in pH 3 - 11 | Indicates suitability for mildly acidic or alkaline media. |
| Fluid Resistance (% Volume Change) | ASTM F146 (Oil/ASTM #3) | +5% to +15% | Minimal swelling ensures dimensional stability in oil. |
| Thermal Conductivity | ASTM C518 | ~0.15 W/m·K | Provides good thermal insulation properties. |
Q: Are non-asbestos sheets from Kaxite Sealing truly 100% asbestos-free?
A: Absolutely. Kaxite Sealing's entire manufacturing process and raw material supply chain are rigorously controlled and certified to be completely free of asbestos fibers. We provide material safety data sheets (MSDS) and certificates of conformity verifying the asbestos-free status of every batch, ensuring full compliance with international safety standards.
Q: How do I select the correct grade of non-asbestos sheet for my specific application?
A: Selection depends on three primary factors: the media (what fluid or gas is being sealed), the operating temperature, and the pressure. For example, for a hot oil line at 200°C, you would choose our KS-NAF 2000 or 3000 series. For a steam application, KS-NAF 1000 or 3000 is suitable. Our technical support team can provide detailed guidance based on your specific operating conditions and flange type.
Q: Can Kaxite Sealing non-asbestos sheets be used as a direct replacement for old asbestos gaskets?
A: In the vast majority of cases, yes. They are designed as drop-in replacements. However, it is crucial to ensure the flange surface is thoroughly cleaned of all old asbestos material. The bolt load required for a proper seal may differ slightly due to different compressibility. We recommend consulting our installation guidelines, which often suggest using a lower initial torque and retorquing after a heat cycle for optimal performance.
Q: What is the shelf life of these sheets, and how should they be stored?
A: Kaxite Sealing non-asbestos sheets have a shelf life of 5 years from the date of manufacture when stored correctly. They should be kept in a cool, dry place away from direct sunlight, extreme temperatures, ozone sources (like electric motors), and moisture. Store rolls vertically or lay sheets flat to prevent deformation.
Q: How are these sheets fabricated into gaskets?
A: They can be easily fabricated using standard tools. For simple shapes, they can be cut with a sharp knife or scissors. For production runs or complex geometries, die-cutting, CNC cutting, or waterjet cutting are recommended. It is important to use sharp tools and clean cuts to avoid frayed edges, which can compromise the seal. Kaxite Sealing also offers a precision die-cutting service to supply ready-to-install gaskets.
Q: Do you offer custom formulations for unique or extreme applications?
A: Yes, at Kaxite Sealing, our R&D department works closely with clients facing unique challenges involving extreme temperatures (cryogenics or above 300°C), highly aggressive chemicals, or unusual pressure pulsations. We can develop custom-compounded non-asbestos sheet materials to meet these specialized requirements. Contact our engineering team with your application details.
Q: What certifications do Kaxite Sealing products hold?
A> Our products and quality management system are certified to various international standards, including ISO 9001:2015. Specific grades hold approvals from organizations like the FDA (for food contact), DVGW (for water and gas), and meet the material requirements of standards such as ASTM F104, DIN 3754, and JIS B 2403. Detailed certification documents are available upon request.
Discover Kaxite Sealing's Non-Asbestos Jointing Sheets: premium sealing solutions for industries like manufacturing and automotive, offering superior durability, heat resistance, and safety without harmful asbestos. Engineered for professionals seeking reliable, eco-friendly alternatives, these sheets ensure leak-free performance and peace of mind in demanding applications. Experience unmatched quality and efficiency—trust Kaxite Sealing for your sealing needs today.
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