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The Role of Magnesium Oxide in Plastic Runway Production and Performance Improvement
Magnesium Oxide (MgO) has become an essential inorganic additive in the manufacturing of modern plastic runways, widely applied in school sports fields, stadium tracks, and outdoor fitness flooring. As a high-purity, environmentally friendly, and stable mineral material, Magnesium Oxide significantly improves the physical performance, weather resistance, and service life of plastic runway materials, making it an indispensable raw material in the athletic flooring industry.
One of the core functions of magnesium oxide in plastic runways is accelerating vulcanization and curing reaction. Plastic runway materials are mainly composed of polyurethane (PU) and EPDM rubber particles. During the production process, MgO acts as a high-efficiency curing agent and vulcanizing activator. It effectively shortens the material curing time, improves molding efficiency, and ensures that the runway layer forms a uniform and stable structural texture. This helps manufacturers reduce production cycles and lower overall processing costs while maintaining consistent product quality in mass production.
In addition, magnesium oxide greatly enhances the mechanical properties of plastic runways. Properly added MgO powder improves the tensile strength, elasticity, and wear resistance of runway materials. Sports runways frequently bear friction, impact, and compression during long-term use. With magnesium oxide modification, the runway surface becomes more resistant to abrasion and is less likely to crack, peel, or deform under continuous sports pressure. This effectively extends the service life of sports flooring and reduces maintenance frequency for sports venues.
Weather resistance and anti-aging performance are also significantly upgraded by magnesium oxide. Outdoor plastic runways are exposed to ultraviolet rays, high temperature, rain, and humid environments all year round, which easily causes aging, discoloration, and powder falling. Magnesium oxide features excellent thermal stability and UV resistance. It can effectively inhibit the aging reaction of polymer materials, prevent color fading, and maintain the original toughness and flatness of the runway surface in extreme weather conditions.
Furthermore, feed-grade and industrial-grade magnesium oxide used for runways is environmentally friendly, non-toxic, and odorless. It meets international sports material safety standards and will not produce harmful volatile substances. It also improves the material’s fire-retardant performance and overall safety, making plastic runways more compliant for educational institutions and professional sports venues worldwide.
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