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In industries where safety, durability, and reliability are non-negotiable, the choice of insulation and sealing materials is critical. Traditional asbestos-based materials, once ubiquitous, are now recognized for their severe health hazards, leading to a global shift towards safer, high-performance alternatives. At Kaxite, we are at the forefront of this evolution, engineering superior Non-asbestos Sheet solutions that meet and exceed the rigorous demands of modern engineering without compromising on safety or performance. Our products are the result of two decades of dedicated research and development, offering a robust, environmentally responsible choice for sealing, gasketing, and insulation applications across diverse sectors.
Non-asbestos sheets are composite materials engineered to replicate and often surpass the beneficial properties of traditional asbestos—such as heat resistance, chemical inertness, and mechanical strength—while being completely free from hazardous asbestos fibers. These sheets are manufactured using a blend of synthetic fibers (like aramid, glass, or carbon fibers), elastomeric binders, and filler materials. This advanced formulation creates a versatile material that is safe to handle, cut, and install, providing exceptional performance under extreme conditions of pressure, temperature, and chemical exposure.
Our product line is designed to cater to specific application requirements. Below is a detailed overview of our standard grades.
| Product Grade | KX-1500 | KX-2500 HT | KX-3500 CR | KX-4500 FC |
|---|---|---|---|---|
| Primary Reinforcement | Aramid Fiber | Aramid & Glass Fiber | Carbon Fiber | Specialty Aramid Blend |
| Binder Type | NBR Elastomer | SBR Elastomer | Fluoroelastomer (FKM) | Food-Grade Elastomer |
| Color | Pink | Blue/White | Black | White |
| Density (g/cm³) | 1.6 - 1.8 | 1.7 - 1.9 | 1.8 - 2.0 | 1.5 - 1.7 |
| Temperature Range (Continuous) | -50°C to +300°C | -50°C to +500°C | -20°C to +250°C | -40°C to +200°C |
| Tensile Strength (MPa) | ≥ 12.0 | ≥ 14.0 | ≥ 10.0 | ≥ 8.0 |
| Compression Set (%) | ≤ 25 | ≤ 20 | ≤ 30 | ≤ 35 |
| pH Range Resistance | 2 - 12 | 1 - 13 | 1 - 14 | 3 - 10 |
| Thickness Available (mm) | 0.5, 0.8, 1.0, 1.5, 2.0, 3.0 | 0.8, 1.0, 1.5, 2.0, 3.0 | 1.0, 1.5, 2.0, 3.0 | 0.5, 1.0, 1.5, 2.0 |
| Primary Applications | General industrial gaskets, water, steam, mild chemicals | High-temperature flanges, boilers, heat exchangers, exhaust systems | Chemical processing, aggressive acids/alkalis, fuel systems | Food & beverage, pharmaceutical, potable water, sanitary fittings |
Q: What exactly does "non-asbestos" mean? Is it 100% safe?
A: "Non-asbestos" means the material is manufactured without using any asbestos minerals (chrysotile, amosite, crocidolite, etc.). Kaxite sheets use certified asbestos-free raw materials. They are completely safe for handling, cutting, and installation when standard workshop safety practices (like controlling dust) are followed, posing no risk of asbestos-related diseases.
Q: How do I select the right Kaxite grade for my application?
A> Selection depends on three primary factors: Temperature, Media (chemicals), and Pressure. For high-temperature applications above 300°C, choose KX-2500 HT. For aggressive chemical services, KX-3500 CR is ideal. For general-purpose industrial use, KX-1500 is recommended. For food contact, always select the food-grade KX-4500 FC. Our technical team can provide specific guidance based on your operating conditions.
Q: Can Kaxite non-asbestos sheets be used as a direct replacement for compressed asbestos fiber (CAF) sheets?
A: Yes, in the vast majority of applications. Kaxite sheets are engineered as direct, drop-in replacements for traditional CAF sheets. They often provide superior sealing performance and longer service life. It is advisable to check the temperature and chemical compatibility of the specific grade against your old CAF specification to ensure optimal performance.
Q: What is the shelf life of these sheets, and how should they be stored?
A: Kaxite 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, and well-ventilated area away from direct sunlight, extreme heat, moisture, and ozone sources (like electric motors). Store sheets flat to prevent curling or deformation.
Q: Are there special requirements for cutting and installing these gaskets?
A> Standard workshop tools—utility knives, rotary cutters, clicker presses, or CNC cutters—are suitable. It is good practice to use sharp blades for clean cuts. For installation, ensure flanges are clean, undamaged, and aligned. Follow recommended bolt torque sequences and values to achieve an even load distribution for a perfect seal. Always refer to the specific installation guide for the grade used.
Q: How do the costs compare to traditional asbestos sheets or other alternatives like PTFE?
A> Initially, high-quality non-asbestos sheets may have a higher unit cost than old asbestos materials. However, the total cost of ownership is often lower due to longer service life, reduced downtime for replacements, and the elimination of costly health and safety liabilities associated with asbestos. Compared to pure PTFE, Kaxite sheets offer better compressive strength and creep resistance at a generally lower cost for many industrial applications.
Q: Do Kaxite sheets come with material test certificates?
A> Yes. Every batch of Kaxite non-asbestos sheet is rigorously tested in our quality control laboratory. A Material Test Certificate (MTC) or Certificate of Analysis (CoA) is supplied with each shipment, detailing physical properties, chemical composition, and confirming the asbestos-free status, ensuring traceability and quality assurance for our clients.
The versatility of our product range allows for application across a broad spectrum of industries:
