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Solving Long-Term Stability for High-End Engineering Plastics? UV3030+PEPQ: The Ultimate Combo with Superior Heat & Weather Resistance

2026-06-12

  In the production and processing of high-end engineering plastics, high-temperature volatilization, discoloration after multiple extrusion cycles, and long-term yellowing aging under outdoor exposure have long been core industry pain points. Conventional light stabilizers feature low heat resistance thresholds and are prone to volatilization and loss during high-temperature pelletizing and injection molding, resulting in initial yellowing and rapid weathering attenuation of finished products, which greatly undermines product quality and service life. To solve these industrial challenges, theUV3030 & PEPQ compound system delivers a high-performance stabilization solution with ultra-high heat resistance, low migration and outstanding yellowing inhibition, standing out distinctly from ordinary light stabilizer products.

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  Different from common UV absorbers with a heat resistance limit of 280–320°C, UV3030 boasts an ultra-high thermal stability of 340°C, ranking among the top-tier high-molecular-weight light stabilizers available on the market. Featuring a unique cyanoacrylate structure and high molecular weight that resists decomposition, it adapts to rigorous processes such as multiple extrusion and high-speed pelletizing for PC, PET, PA and other high-temperature processing plastics. It achieves zero volatilization, zero precipitation and zero loss during production, fundamentally solving the problem of high-temperature failure of conventional additives and unstable product performance.

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  Combined with the high-temperature resistant antioxidant PEPQ, the system realizesdual synergistic protection of UV stabilization and thermal oxidation stabilization. With excellent high-temperature resistance and hydrolysis resistance, PEPQ efficiently captures free radicals generated during processing and inhibits thermal oxidative degradation, effectively improving melt discoloration, blackening and mechanical property degradation. The two additives deliver a 1+1>2 synergistic effect, resisting internal aging caused by high processing temperature and long-term UV erosion outdoors, and significantly enhancing the weathering and aging resistance of plastic products.

  Highlighted by low dosage, high transparency and superior yellowing inhibition, this combo will not affect the light transmittance and appearance of transparent products. It is perfectly applicable to high-standard scenarios including optical materials, high-end home appliances, automotive transparent parts, photovoltaic accessories and outdoor engineering plastics. With reliable processing stability and long-term weather resistance, the UV3030+PEPQ system has become a preferred formula upgrade solution for high-end modification and new material enterprises, helping polymer products achieve high quality, long service life and lower defective rates.

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   Its synergistic antioxidant and UV-stabilizing effects significantly reduce chain scission and discoloration under harsh environmental conditions, ensuring consistent mechanical performance and aesthetic integrity across diverse applications—from automotive interiors to outdoor construction materials.

 

  Want to know more? Please contactus at: yihoo@yihoopolymer.com. Besides the aforementioned high-performance nylon materials, we also offer various chemicalproducts such as light stabilizers, UVabsorbers, antioxidants, WPC-specific additives, nucleating agents, anti-static agents, matte polyurethane dispersions, etc. Welook forward to your inquiries!