If hydraulic systems are the lifeblood of industrial equipment, then oil seals and sealing components are the vital "heart valves" maintaining their operation. While traditional materials can barely keep these "valves" functioning, they often fall short of meeting the stringent demands of modern industry for high efficiency, environmental friendliness, and durability.
Wanhua, committed to innovation for complex operating conditions, has successfully developed a breakthrough solution through independent R&D: the WANTHANE®TPU series. With core advantages including exceptional resilience, mechanical strength, and resistance to oil/hydrolysis, this material provides a highly reliable solution for the hydraulic sealing sector.
➤ Permanent Compression Set
Resilience is paramount for sealing performance. Seals made from WANTHANE®TPU exhibit excellent elastic recovery and outstanding compression set resistance. Even when compressed under high temperature and pressure, they quickly and precisely return to their original dimensions once the pressure is released, ensuring long-lasting, effective sealing.
➤ Mechanical Strength
Material strength is critical in sealing applications, directly determining the pressure a seal can withstand. WANTHANE®TPU possesses ultra-high tensile strength, enabling it to handle significantly greater pressures compared to traditional rubber seals, thereby robustly ensuring sealing security.
➤ Oil Resistance
WANTHANE®TPU stands firm against the erosion of hydraulic oils. It demonstrates minimal swelling, excellent resistance to various hydraulic oils, and maintains its tensile strength effectively. Even after immersion in ASTM 2# oil at 90°C for 28 days, it retains superior pressure-resistant performance.
➤ Service Durability
In real-world applications, seals must possess excellent resistance to heat, oil, hydrolysis, and abrasion. WANTHANE® TPU offers remarkable temperature resistance, suitable for long-term use within a range of -40°C to 110°C. It also features excellent hydrolysis resistance, effectively preventing degradation caused by heat and exposure to oil/water. This ensures the material resists cracking, loss of strength, excessive wear, or tackiness even after prolonged use.
WANTHANE®TPU is redefining sealing technology through material innovation, offering molecular-level precision to infuse industrial equipment with enduring vitality. Moving forward, Wanhua Chemical will continue to drive progress through technological innovation. Leveraging our integrated upstream-downstream advantages, we will introduce products with even better performance and a broader, more diverse portfolio, contributing to the development of a greener industrial future.
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