In the vast world of industrial manufacturing, construction, and maintenance, the integrity of any system or structure hinges on one critical component: Sealing Materials. These products are the unsung heroes, preventing leaks, blocking contaminants, dampening sound, and providing fire protection. For over two decades, Kaxite has been at the forefront of developing and supplying advanced sealing solutions engineered for performance, durability, and reliability. This guide delves into the technical specifications of our products, presented with the clarity and detail that professionals demand.
Kaxite's product portfolio is designed to meet a wide spectrum of application challenges. Below is a breakdown of our primary sealing material categories with their key parameters.
Ideal for pumps, valves, and agitators, our braided compression packing is engineered for demanding sealing environments.
Kaxite gasket sheets provide a versatile solution for creating static seals between flanges.
| Material Type | Thickness (mm) | Density (g/cm³) | Max Temp (°C) | Pressure Capacity | Primary Applications |
|---|---|---|---|---|---|
| Compressed Non-Asbestos (CNA) | 0.5, 0.8, 1.0, 1.5, 2.0, 3.0 | 1.6 - 1.9 | 400°C | Medium-High | Water, steam, oil, general chemical |
| PTFE (Virgin & Filled) | 0.5, 1.0, 1.5, 2.0, 3.0, 5.0 | 2.1 - 2.3 | 260°C | Medium | Aggressive chemicals, food & pharmaceutical |
| Graphite (Flexible) | 0.5, 0.8, 1.5, 2.0, 3.0 | 1.0 - 1.1 | 500°C (Inert Atmosphere) | High | High-temperature flanges, heat exchangers |
| Rubber (NBR, EPDM, Silicone) | 0.8, 1.0, 1.5, 2.0, 3.0 | 1.2 - 1.8 | 120°C - 230°C | Low-Medium | Water, air, fuels, HVAC |
Kaxite's silicone-based form-in-place gaskets offer precision sealing for complex mating surfaces.
Q: What factors are most critical when selecting a sealing material?
A: The selection process must consider five key parameters: 1) Media Compatibility: The seal must resist chemical attack from the fluid or gas it contains. 2) Temperature Range: The material must retain its physical properties across the entire operating temperature, including peak and cryogenic conditions. 3) Pressure: The seal must withstand the system pressure without extrusion or blow-out. 4) Application Type: Static (gaskets) vs. Dynamic (packing, seals). 5) Regulatory Requirements: Such as FDA, USP Class VI, or ASTM standards for specific industries.
Q: How does Kaxite's compressed non-asbestos (CNA) material compare to traditional asbestos gaskets?
A: Kaxite CNA materials are engineered as a superior, safe replacement for asbestos. They offer comparable thermal and pressure performance without the associated health hazards. Our CNA blends, using aramid, cellulose, and synthetic rubber binders, provide excellent sealability, creep relaxation resistance, and are suitable for a broader range of media, including modern synthetic lubricants and coolants that can degrade older materials.
Q: Can Kaxite PTFE sealing materials be used in oxygen service?
A: Yes, but with critical precautions. Virgin PTFE is inherently compatible with oxygen. However, for high-pressure or high-purity oxygen systems, specific grades must be used. Kaxite offers specially cleaned and processed PTFE materials that are free of contaminants and organic additives that could pose a ignition risk. It is imperative to consult our technical data sheets and ensure the material meets the specific standards (like ASTM G63) for your application.
Q: What is the shelf life of Kaxite's liquid gasket products (FIPG), and how should they be stored?
A: The typical shelf life for unopened Kaxite FIPG cartridges and tubes is 12 months from the date of manufacture when stored in their original packaging at temperatures between 5°C and 25°C (41°F to 77°F). Avoid exposure to direct sunlight, extreme heat, or frost. Once opened, the product should be used promptly, and any remaining material should have its nozzle capped tightly to prevent skinning and cure initiation from moisture in the air.
Q: For high-temperature flanges (above 300°C), should I use a CNA or a Graphite gasket?
A: For consistent service above 300°C, flexible graphite is generally the preferred choice from Kaxite. While our premium CNA can handle peaks up to 400°C, graphite maintains its sealing integrity and flexibility more effectively across a sustained high-temperature range (up to 500°C in inert atmospheres). Graphite also has superior thermal conductivity and creep resistance under heat. Critical considerations include the presence of oxidizing agents (which can degrade graphite above 450°C) and the need for internal or external reinforcement to prevent blow-out.
Q: How do I determine the correct size and cross-section for compression packing?
A: The packing cross-section is determined by the gland/stuffing box dimensions. The general rule is: Packing Cross-Section = (Gland Bore Diameter - Shaft or Stem Diameter) / 2. It is crucial to measure the shaft/stem and bore accurately. Kaxite recommends selecting a standard size that is the closest match or slightly undersized, as packing will expand upon compression. Our technical support team can assist with calculations for complex or worn equipment.
Beyond standard offerings, Kaxite specializes in engineered solutions for extreme conditions. Our R&D department works on advanced composites, including:
Each Kaxite product is backed by comprehensive technical documentation, including Material Safety Data Sheets (MSDS), compliance certificates, and detailed installation guidelines to ensure optimal performance and safety on site.
