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EPDM (Ethylene Propylene Diene Monomer) colored granules are widely applied in sports venues, children’s playgrounds, municipal walkways and commercial flooring due to their excellent elasticity, weather resistance, anti-aging performance and environmental friendliness. The weight composition of EPDM granules, including EPDM rubber matrix, inorganic fillers, plasticizers, color pigments, vulcanizing systems and functional additives, is the core factor that determines the mechanical properties, color fastness, service life and comprehensive cost of finished products. Improper component weight ratio matching will lead to common defects such as insufficient elasticity, easy fading, brittle cracking and poor wear resistance.

EPDM (Ethylene Propylene Diene Monomer) colorful granules are high-performance synthetic rubber composites widely used in sports surfaces, playgrounds, and leisure areas. Their formulation consists of EPDM rubber matrix, mineral fillers, plasticizers, vulcanizing agents, color pigments, and functional additives. This article systematically elaborates on each component’s chemical structure, content range, and functional mechanisms, as well as their synergistic effects on the granules’ weather resistance, elasticity, color stability, and mechanical strength. The composition ratio directly determines the quality and service life of EPDM granules, providing a theoretical basis for material selection and quality control in related industries.

Ethylene Propylene Diene Monomer (EPDM) granules are high‑performance synthetic rubber materials widely used in sports surfacing, playground safety flooring, industrial flooring and construction sealing. This article systematically introduces the chemical composition, core physical and mechanical properties, main applications, quality control indicators and sustainability advantages of EPDM granules. It focuses on analyzing the relationship between EPDM content, filler system and weathering resistance, as well as the performance differences between high‑grade EPDM granules and ordinary rubber granules. The research shows that EPDM granules with an EPDM content of more than 20% and a reasonable vulcanization system have excellent UV resistance, ozone resistance, elasticity and color fastness, which can meet the long‑term use needs of outdoor facilities and provide safe, comfortable and durable surface solutions for various scenarios.

Epoxy doming resin is widely used for labels, badges, and decorative applications, but many users experience yellowing after outdoor exposure. This article explains why epoxy resin turns yellow, how UV light affects resin performance, and why UV-resistant PU doming resin is often recommended for long-term outdoor applications such as automotive logos and outdoor emblems.

Choosing between flexible and rigid doming resin is important for achieving the best appearance, durability, and performance. This article explains the key differences between flexible and rigid doming resin, including hardness, flexibility, scratch resistance, application scenarios, and outdoor performance, helping buyers select the correct resin system for labels, badges, automotive logos, and decorative dome coatings.

Choosing the right doming resin is critical for outdoor applications such as automotive logos, badges, and labels. This article explains the differences between epoxy and PU doming resin, including UV resistance, yellowing performance, flexibility, hardness, and outdoor durability, helping buyers select the best resin system for long-term outdoor use.