PU Sheets from Kaxite Sealing represent the pinnacle of engineered polymer solutions for industrial sealing, gasketing, and protective applications. Engineered from premium-grade polyurethane elastomer, our sheets offer an unparalleled combination of durability, resilience, and chemical resistance, making them the material of choice for engineers and maintenance professionals across countless industries. At Kaxite Sealing, we leverage decades of material science expertise to formulate and manufacture PU sheets that consistently outperform standard rubber and plastic alternatives, delivering longer service life, reduced downtime, and superior cost-efficiency in demanding environments.
The superior performance of Kaxite Sealing PU Sheets stems from their unique molecular structure. Polyurethane elastomers bridge the gap between rigid plastics and soft rubbers, offering high tensile strength and load-bearing capacity alongside excellent elasticity and abrasion resistance. This balance of properties is precisely controlled during our manufacturing process to ensure batch-to-batch consistency and reliability you can depend on.
### Key Features and Material Advantages
Kaxite Sealing PU Sheets are designed to excel where other materials fail. Here are the core advantages that define our product line:
* **Exceptional Abrasion & Tear Resistance:** Possessing one of the highest abrasion resistance ratings among elastomers, our PU sheets withstand severe wear from friction, particulate matter, and mechanical scraping, significantly outlasting rubber sheets.
* **High Load-Bearing Capacity & Tensile Strength:** They exhibit outstanding toughness and can withstand high pressures and mechanical stresses without permanent deformation or failure.
* **Superior Resilience & Elastic Recovery:** Our PU material bounces back to its original shape even after prolonged compression, ensuring a lasting seal and preventing creep relaxation common in other materials.
* **Broad Chemical Resistance:** They offer excellent resistance to oils, greases, fuels, many solvents, and ozone, making them suitable for hydraulic systems, fuel handling, and industrial processing.
* **Excellent Weathering & UV Stability:** Formulated to resist degradation from sunlight, oxygen, and weathering, our sheets are ideal for both indoor and outdoor applications.
* **Customizable Properties:** We offer variations in hardness, density, and additive packages to tailor the sheets for specific requirements, such as food-grade compliance, static dissipation, or enhanced hydrolysis resistance.
### Detailed Product Parameters & Specifications
To ensure you select the perfect material for your application, Kaxite Sealing provides PU sheets in a comprehensive range of specifications. The following tables outline our standard offerings.
#### Table 1: Standard Physical & Mechanical Properties
| Property | Test Standard | Typical Value Range | Units |
| :--- | :--- | :--- | :--- |
| **Hardness (Shore A)** | ASTM D2240 | 70A to 98A | Shore A |
| **Tensile Strength** | ASTM D412 | 30 - 60 | MPa (psi) |
| **Elongation at Break** | ASTM D412 | 300% - 600% | % |
| **Tear Strength (Die C)** | ASTM D624 | 50 - 120 | kN/m (pli) |
| **Compression Set (22 hrs @ 70°C)** | ASTM D395, Method B | 10% - 30% | % |
| **Specific Gravity** | ASTM D792 | 1.15 - 1.25 | - |
| **Abrasion Resistance (Taber)** | ASTM D1044 | Excellent (Index > 500) | - |
#### Table 2: Standard Available Forms & Dimensions
| Form | Standard Thickness | Standard Sheet Size | Standard Roll Width | Color Availability |
| :--- | :--- | :--- | :--- | :--- |
| **Sheets** | 1mm, 1.5mm, 2mm, 3mm, 5mm, 6mm, 10mm, 12mm, 15mm, 20mm, 25mm | 1m x 1m, 1m x 2m, 1.2m x 1.2m, 1.2m x 2m, Custom | N/A | Black, White, Clear, Custom Colors |
| **Rolls** | 0.5mm, 1mm, 1.5mm, 2mm, 3mm | N/A | 1m, 1.2m, 1.5m | Primarily Black, White |
| **Cork/NRB Composites** | 1.5mm, 3mm, 5mm (PU Layer) | 1m x 1m, 1.2m x 1.2m | N/A | Black (PU surface) |
*Note: Custom thicknesses, sheet sizes, and formulations (e.g., FDA-compliant, flame-retardant) are available upon request from Kaxite Sealing.*
### Primary Industrial Applications
The versatility of Kaxite Sealing PU Sheets enables their use in a vast array of sectors:
* **Hydraulics & Pneumatics:** Gaskets, seals, wipers, and wear rings in cylinders, pumps, and valves due to excellent resistance to hydraulic fluids and pressure.
* **Automotive & Transportation:** Suspension bump stops, bushings, gaskets for engine covers, cable grommets, and protective liners resistant to oil and underhood temperatures.
* **Material Handling & Conveying:** Impact pads, skirting seals, slider bed liners, and wear strips that protect equipment from abrasive coal, ore, gravel, and aggregate.
* **General Manufacturing & Machinery:** Custom gaskets, seals, vibration dampers, and protective liners for machine tools, presses, and industrial equipment.
* **Food & Beverage Processing:** FDA-compliant grades for seals, gaskets, and conveyor belts where contact with food substances occurs.
* **Marine & Offshore:** Seals and gaskets resistant to saltwater, ozone, and weathering for deck fittings, hatches, and marine equipment.
### Kaxite Sealing PU Sheets: Frequently Asked Questions (FAQ)
**Q: What are the main advantages of PU sheets over traditional nitrile rubber (NBR) sheets?**
**A:** While NBR is excellent for oil resistance, Kaxite Sealing PU sheets offer significantly superior abrasion resistance, tear strength, and load-bearing capacity. PU also provides better resilience (lower compression set) and can maintain sealing force over a longer period. For high-wear, high-pressure applications, PU is often a more durable and cost-effective long-term choice.
**Q: How do I select the correct hardness (Shore A) for my application?**
**A:** Hardness selection depends on the required sealability, pressure, and surface condition. Softer grades (70A-85A) are better for sealing uneven or rough surfaces at lower pressures. Medium grades (90A-95A) offer a good balance of conformability and mechanical strength for general gasketing. Harder grades (95A-98A) are ideal for high-pressure applications, wear strips, and parts requiring extreme dimensional stability and minimal deformation.
**Q: Are Kaxite Sealing PU sheets resistant to water and moisture?**
**A:** Standard polyester-based PU sheets have good short-term water resistance but can be susceptible to hydrolysis (chemical breakdown by water) in continuously hot and humid environments. For such applications, Kaxite Sealing offers specially formulated polyether-based PU sheets, which provide exceptional hydrolysis resistance and are recommended for constant immersion or high-humidity conditions.
**Q: Can these sheets be easily fabricated and installed?**
**A:** Yes, absolutely. Kaxite Sealing PU sheets are designed for easy fabrication. They can be cleanly cut with utility knives, die-cut, punched, routed, or skived. They can also be effectively bonded using high-strength polyurethane or cyanoacrylate adhesives to metals, plastics, and other substrates, facilitating easy installation and repair.
**Q: What temperature range can your PU sheets withstand?**
**A:** Our standard PU sheets typically perform reliably within a temperature range of **-40°C to +80°C (-40°F to +176°F)** for continuous service. Special high-temperature grades are available that can withstand intermittent exposure up to **120°C (248°F)**. It is crucial to consult our technical data sheets for specific grade capabilities regarding your operating temperature.
**Q: Do you offer PU sheets suitable for food contact or potable water applications?**
**A:** Yes, Kaxite Sealing manufactures FDA-compliant and NSF/ANSI 61 certified PU sheet grades. These formulations use approved ingredients and are non-toxic, non-tainting, and suitable for use in food processing machinery, packaging equipment, and systems involving potable water. Please specify this requirement when inquiring.
**Q: How should I store unused PU sheets to ensure their longevity?**
**A:** For optimal shelf life, store Kaxite Sealing PU sheets in a cool, dry, and dark place away from direct sunlight, heat sources (like radiators), and ozone-generating equipment (e.g., electric motors). The ideal storage temperature is between 10°C and 25°C (50°F and 77°F). Keep the sheets flat or rolled without sharp bends and away from chemicals and solvents.
**Q: Can you provide custom-sized sheets or specific material formulations?**
**A:** Customization is a core strength of Kaxite Sealing. We routinely produce sheets in non-standard thicknesses, sheet sizes, and roll dimensions. Furthermore, our technical team can work with you to develop custom formulations with specific properties, such as enhanced flame retardancy (UL 94), static dissipation (ESD), unique colors, or reinforced composites with fabric or metal inserts.
