How Strong Is The UV Resistance of Sulfur-Free EPDM Granules

Due to their unique sulfur-free vulcanization process, sulfur-free EPDM granules offer exceptional UV resistance. Their molecular structure is highly stable; even under prolonged exposure to intense UV radiation, they not only resist the decomposition of sulfuric acid or the development of unpleasant odors but also effectively resist photodegradation. Compared to traditional sulfur-containing products, their resistance to aging and weathering is several times greater, and their colors remain vibrant and long-lasting, making them the ideal eco-friendly paving material for demanding outdoor applications.

From the user’s perspective, our sulfur-free EPDM granules can effectively address the multiple challenges you face in outdoor facility construction. Not only do we provide odorless, eco-friendly materials that meet food-grade standards to ensure the health and safety of users, but we also completely resolve the issues of fading and chalking through significantly enhanced UV and oxidation resistance. Furthermore, the product’s excellent elasticity and exceptionally long service life can significantly reduce your long-term maintenance costs, enabling you to create high-quality flooring projects that are both aesthetically pleasing and durable.

Core Advantages and Value of Sulfur-Free EPDM Granules

Through technological innovation, our sulfur-free EPDM granules have achieved breakthroughs in multiple physical and chemical properties, delivering significant application value:

Unparalleled Weather Resistance and UV Protection: Thanks to sulfur-free technology, the product’s molecular structure is more stable, greatly enhancing its resistance to aging. Under normal sunlight exposure, its performance retention rate is more than five times higher than that of traditional sulfur-containing products, and its service life is extended by more than three times.

Environmentally Friendly, Safe, and Odorless: Since they contain no sulfur, the granules do not decompose to release sulfuric acid under high temperatures or intense UV exposure, fundamentally eliminating any pungent odors. The product meets food-grade hygiene standards, making it particularly suitable for venues with extremely high safety requirements, such as kindergartens and children’s playgrounds.

Superior Physical and Mechanical Properties: The product’s elasticity and tensile strength are 2–3 times higher, with tensile strength reaching 4–7 MPa—far exceeding that of ordinary products. This not only provides better shock absorption and protection during physical activities but also enhances the surface’s tear resistance and wear resistance.

Long-Lasting, Vibrant Colors: The material features exceptional antioxidant properties and utilizes highly weather-resistant inorganic pigments for uniform coloring throughout. It resists discoloration even under intense UV exposure, maintaining vibrant colors over the long term to meet the design requirements of various landscapes and sports facilities.

Superior Heat Resistance and Three-Dimensional Structure: The sulfur-free manufacturing process endows the product with superior heat resistance, allowing it to maintain a stable physical structure even under intense summer heat and direct sunlight. Additionally, the low bulk density of the granules and their pronounced three-dimensional edges not only ensure good breathability during installation but also effectively disperse stress.

Flexible Customization to Meet Diverse Procurement Needs

We understand that every project has its own unique standards. Leveraging over 25 years of industry experience and a full suite of advanced production lines, we offer comprehensive customization services:

Color and granule Size Customization: We support 24 standard colors—including red, blue, yellow, and green—as well as custom color matching; granule sizes range from 0.5 to 5 mm to meet various application requirements, from base layer filling to surface spraying.

Flexible Minimum Order Quantities: Whether for large-scale municipal projects or small-scale site renovations, we offer flexible minimum order quantities and respond quickly to your order needs.

Professional Technical Support: From material selection to construction mix ratios, our technical team provides full-process support to ensure optimal product performance.

Solving Application Challenges and Real-World Customer Case Studies

Case 1: Outdoor Sports Field at an International School in Southeast Asia

Located in a tropical region, this school experiences high average annual sunlight intensity and a long rainy season. After three years of use, the existing EPDM track showed severe fading and surface chalking, and emitted a noticeable odor under high temperatures. During the renovation, the school selected our sulfur-free EPDM granules (red, 1–3 mm granule size). After installation, the track’s elasticity improved significantly, and impact absorption tests confirmed that all metrics met World Athletics standards. After one year of use, third-party testing confirmed that color retention exceeded 95%, with no signs of chalking or cracking. Feedback from teachers and students indicated that there was no odor even during the hottest midday hours.

Case 2: Surface Renovation of a Large Children’s Playground in Europe

This playground’s outdoor area spans approximately 2,000 square meters. It faced issues of surface cracking and granule loss due to UV aging, and frequent repairs were disrupting operations. After re-paving with our custom color scheme of sulfur-free EPDM granules (a three-color mosaic of green, blue, and yellow, with a granule size of 2–4 mm), the visual appearance was completely revitalized. Furthermore, after enduring a full summer of intense heat and a winter of severe cold, the surface has maintained excellent elasticity and color saturation. The operator reported that, more than two years after installation, maintenance costs have been reduced by approximately 70% compared to previous levels.

Case 3: Court Upgrade for a Professional Tennis Club

The club had extremely high requirements for court elasticity, coefficient of friction, and durability. After using our sulfur-free EPDM granules (particle size 0.5–1.5 mm, custom green) as the surface material, professional instrument testing confirmed that the court’s rebound performance and coefficient of friction both met ITF standards. Players reported that the court felt comfortable underfoot and provided excellent cushioning. The club’s technical director noted that, compared to previously used materials, the new court’s performance degrades at a significantly slower rate.

With 25 years of industry experience and advanced production lines, we support customization of color, particle size, and performance specifications. We offer flexible minimum order quantities. Please feel free to contact us at any time for free samples and a customized solution!

WOW(LYG) New Material Co Ltd is a manufacturer specializing in the production of EPDM rubber granules. We use sulfur-free vulcanization technology, it increases the service life by more than 3 times than traditional EPDM granules, and enhances the performance, including anti-aging, high-temperature resistance, and colorfastness.

We have over 25 years of production experience and offer customization for colors and granule sizes. NO MOQ.