In the demanding worlds of industrial manufacturing, construction, and automotive engineering, the integrity of a system often hinges on its smallest components. Sealing materials are the unsung heroes, providing critical barriers against leakage, contamination, and environmental ingress. For two decades, Kaxite has stood at the forefront of this vital field, developing and refining high-performance sealing solutions that meet the most rigorous international standards. Our commitment is not just to supply a product but to deliver guaranteed performance, reliability, and long-term value for your operations.
Kaxite sealing materials are engineered from advanced polymer compounds and composite materials, designed to withstand extreme temperatures, aggressive chemicals, and intense pressure. We understand that every application has unique challenges, which is why our product range is both comprehensive and customizable.
Our flagship sealing materials are categorized based on their primary material composition and optimal application environment. Below is a detailed breakdown of our core product lines.
Ideal for dynamic and static applications requiring excellent flexibility and resilience.
Engineered for the most corrosive chemical environments and applications with ultra-low friction requirements.
Selecting the right seal requires a precise understanding of its capabilities. The following tables provide key technical data for our primary elastomer materials.
| Material (Kaxite Grade) | Hardness (Shore A) | Tensile Strength (MPa) | Elongation at Break (%) | Compression Set (%, 22h @ 70°C) |
|---|---|---|---|---|
| NitroSeal (NBR) | 50 - 90 | 10 - 25 | 150 - 500 | 15 - 25 |
| VitonSeal (FKM) | 60 - 90 | 10 - 20 | 100 - 300 | 10 - 20 |
| SiliconeSeal (VMQ) | 30 - 80 | 4 - 10 | 200 - 700 | 10 - 25 |
| EPDMSeal (EPDM) | 40 - 90 | 10 - 20 | 200 - 500 | 15 - 25 |
| Material (Kaxite Grade) | Continuous Temp. Range (°C) | Excellent Resistance To | Poor Resistance To |
|---|---|---|---|
| NitroSeal (NBR) | -40 to +120 | Oils, fuels, greases, water | Ozone, weathering, ketones, brake fluid |
| VitonSeal (FKM) | -20 to +220 | Oils, fuels, acids, chemicals, high temp | Ketones, esters, ammonia, steam |
| SiliconeSeal (VMQ) | -60 to +230 | Heat, cold, ozone, sunlight | Petroleum oils, fuels, steam, acids/bases |
| EPDMSeal (EPDM) | -50 to +150 | Hot water, steam, ozone, weathering | Petroleum oils, greases, fuels |
| Kaxite PTFE Pure | -200 to +260 | Almost all chemicals | Molten alkali metals, fluorine at high temp |
How do I choose the right sealing material for my application?
The selection depends on four key factors: the medium being sealed (e.g., oil, steam, chemical), the operating temperature range, the pressure (static or dynamic), and the environmental conditions (ozone, UV exposure). Cross-reference your application requirements with the chemical resistance and temperature data in our tables. For complex applications, contact Kaxite technical support for a personalized recommendation.
What is the difference between static and dynamic sealing applications?
A static seal is used between two surfaces that do not move relative to each other, such as gaskets in flanges or pipe connections. A dynamic seal is used where there is motion, such as rotating shafts (radial shaft seals) or reciprocating rods (piston seals). Dynamic applications require materials with excellent wear resistance and low friction, often necessitating different compound formulations than those used for static seals.
Why does hardness (Shore A) matter in seal selection?
Hardness indicates the material's resistance to indentation and is a proxy for its flexibility and sealing force. A softer seal (lower Shore A) conforms more easily to irregular surfaces, providing a better seal at lower flange pressures. A harder seal offers greater resistance to extrusion under high pressure and better mechanical strength. The correct hardness balances sealing effectiveness with durability for your specific pressure conditions.
Can Kaxite provide custom-formulated sealing materials?
Absolutely. While our standard grades cover over 90% of industrial needs, we specialize in custom compounding. If your application involves a unique chemical, an extreme temperature profile, or requires specific regulatory approvals (FDA, USP Class VI, NSF), our engineering team can develop a tailor-made compound to meet your exact specifications and performance criteria.
What does "compression set" mean, and why is it important?
Compression set is a measure of a material's ability to recover its original shape after prolonged compression. A low percentage is critical. A high compression set means the seal becomes permanently deformed, loses its sealing force, and is likely to leak. Materials like FKM (VitonSeal) and high-quality EPDM typically offer low compression set values, ensuring long-term sealing reliability.
How should I store Kaxite sealing products to ensure their shelf life?
To preserve their properties, store seals in a cool, dark, and dry environment, away from direct sunlight, ozone sources (like electric motors), and heat. Ideal storage temperature is between +5°C and +25°C. Keep seals in their original packaging until use to prevent contamination and deformation. Under these conditions, most elastomer seals have a shelf life of 5-10 years.
Do you offer support for seal failure analysis?
Yes. Kaxite provides comprehensive technical support, including seal failure analysis. If a seal is underperforming or has failed prematurely, our experts can examine factors such as improper material selection, installation damage, excessive swelling or shrinkage, abrasion patterns, and chemical attack to diagnose the root cause and recommend a corrective solution.
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