Do Sulfur-Free EPDM Colored Granules Fade

Sulfur-free EPDM colored granules are not prone to fading under normal usage conditions. Thanks to the molecular structural stability and exceptional antioxidant properties provided by sulfur-free technology, this material effectively withstands intense UV exposure and high temperatures, significantly enhancing its resistance to aging. Compared to traditional granules, its colors are more vibrant and long-lasting, with minimal color change, making it an ideal choice for those seeking long-lasting aesthetics and high-quality outdoor flooring.

What challenges does your project face?

Whether you’re installing a kindergarten playground, a school track, or a residential fitness trail, you may have encountered this issue: the newly installed surface starts out bright and colorful, but within a year, it begins to fade, turn white, or even emit a pungent odor. Especially during hot summers and under intense UV exposure, traditional sulfur-containing granules tend to decompose and release sulfuric acid, which not only affects aesthetics but also produces unpleasant odors, compromising the user experience. Furthermore, the cost pressure resulting from frequent renovations and maintenance is a burden that cannot be overlooked in project operations.

Why does sulfur-free technology make colors last longer?

Core Technological Advantages of Sulfur-Free EPDM Colored Granules

The exceptional weather resistance and color retention of sulfur-free EPDM colored granules stem from comprehensive innovations spanning everything from raw materials to production processes. Below are their core features and the practical benefits they offer users:

Sulfur-free, odorless, eco-friendly, and safe: Since the formulation contains no sulfur, the granules do not decompose to produce irritating substances such as sulfuric acid when exposed to high temperatures and intense UV radiation, ensuring they remain odorless throughout their lifespan. The product is more environmentally friendly and meets food-grade hygiene standards, perfectly addressing the stringent air quality requirements of sensitive environments such as kindergartens and schools.

Molecular Stability, Doubled Lifespan: Sulfur-free technology stabilizes the product’s molecular structure, significantly enhancing its resistance to aging and oxidation. Its service life is more than three times longer than that of traditional products, and its performance retention rate is more than five times higher, delivering long-term cost savings for users.

Vibrant, Long-Lasting Colors: Enhanced antioxidant properties ensure the granules retain their vivid colors and resist fading. Even under intense sunlight, the color remains stable, meeting the long-term visual requirements of high-end landscaping and sports facilities.

Superior Elasticity and Safe Cushioning: The product’s elasticity and tensile strength are 2–3 times higher, reaching 4–7 MPa. This provides athletes with excellent shock absorption and protection, effectively reducing the risk of joint injuries while delivering a more comfortable feel underfoot.

High-Temperature Resistance and Strong Three-Dimensional Texture: The granules exhibit superior high-temperature resistance and are less prone to softening or deformation. Additionally, the product has a low bulk density, and the granules feature sharp, three-dimensional edges that not only enhance aesthetics but also improve the surface’s slip resistance.

Flexible Customization Services to Meet Diverse Needs

We understand that every project is unique, which is why we offer comprehensive customization services. With over 25 years of industry experience and a full suite of advanced production lines, we support exclusive customization of colors and granule sizes based on specific client requirements. Whether you need a particular color scheme or specific granule dimensions, we can quickly fulfill all types of orders with flexible minimum order quantities and efficient production capacity, ensuring your creative vision and design concepts are perfectly realized.

Overcoming Application Challenges to Create Exceptional Surfaces

In practical applications, outdoor surfaces often face challenges such as UV-induced fading, accelerated aging due to high temperatures, and failure to meet environmental standards. Our sulfur-free EPDM colored granules are specifically designed to overcome these challenges. They eliminate odor and the release of harmful substances at the source, while their exceptional weather resistance ensures the stability of the surface even under harsh weather conditions.

Diverse Application Scenarios to Meet Your Custom Needs

Our sulfur-free EPDM colored granules are suitable for a wide range of settings: school athletic fields require colorful, safe, and eco-friendly surfaces; kindergarten play areas demand non-toxic, odorless surfaces with moderate elasticity to protect children’s safety; fitness trails need wear-resistant, slip-resistant surfaces that maintain their aesthetic appeal over the long term; and community activity centers seek high cost-effectiveness and low maintenance costs. Additionally, they are widely used in tennis courts, basketball courts, golf courses, pedestrian overpasses, senior living facilities, and other venues.

Customer Case Studies

Case 1: Renovation Project for an International School’s Athletic Field

After three years of use, the school’s original synthetic track had shown significant fading and surface chalking. Furthermore, it emitted a pungent odor during the hot summer months, disrupting normal teaching activities. We provided custom red and blue sulfur-free EPDM granules with a granule size of 2–4 mm and resurfaced the 400-meter standard track. Upon project completion, the track featured vibrant colors and a strong three-dimensional effect. Even after one summer of intense heat and exposure to the sun, there was no noticeable discoloration, and odor tests fully met regulatory standards. School officials noted that the new track’s elasticity and comfort were significantly superior to the old one.

Case 2: Flooring Project for a Large Children’s Theme Park

This project covered a total area of approximately 8,000 square meters and required a colorful surface that met children’s toy safety standards. The park’s management had previously expressed concerns that the colored flooring might fade after prolonged outdoor use. We customized sulfur-free EPDM granules in four colors—red, yellow, blue, and green—manufactured in accordance with food-grade environmental standards. After two full summers of outdoor use, the flooring has retained its color well, showing no signs of fading or chalking. The park has since designated it as the preferred flooring material for future expansion projects.

Case 3: Fitness Trail in a High-End Residential Community

Located in a coastal city, this community faces extreme challenges for flooring materials due to high temperatures, high humidity, and intense UV radiation. The property management team used our sulfur-free EPDM granules to pave a circular fitness trail approximately 1.2 kilometers long. A follow-up inspection one year later showed that the trail retained over 95% of its original color vibrancy, with no visible signs of aging and excellent elasticity, resulting in high resident satisfaction.

If you are seeking solutions for color durability, environmental safety, or material durability for your outdoor spaces, please feel free to contact us at any time to receive a customized solution and samples of our sulfur-free EPDM colored granules.

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.