Views: 0 Author: Site Editor Publish Time: 2026-06-16 Origin: Site
In the construction and renovation of modern indoor sports venues, the environmental friendliness, durability, and athletic performance of ground materials have become a common concern for both operators and users. Traditional rubber granules are prone to producing irritating odors due to high temperatures or light exposure, which not only affects the exercise experience but may also pose potential risks to health.

For venue operators, designers, and sports enthusiasts, the most core challenges include complaints about materials emitting odors in enclosed spaces, increased risk of sports injuries due to insufficient ground elasticity, high costs associated with frequent renovations due to granule fading or aging, and non-compliance with environmental standards affecting qualification certification. Sulfur free EPDM granules solve these problems from the source by completely removing sulfur components - odorless, elasticity increased by 2-3 times, aging resistance and color durability significantly enhanced, while meeting food level health requirements, making indoor sports space both safe and durable.

Core technological advantages of odorless EPDM granules
Based on a sulfur free formula, this product far exceeds traditional EPDM granules in the following key indicators:
-Zero odor release: sulfur free, does not decompose into sulfuric acid under high temperature and strong ultraviolet radiation, completely eliminating the source of odors, especially suitable for enclosed or semi enclosed indoor venues.
-Long service life: The molecular structure is more stable, and the service life is increased by more than 3 times, reducing the frequency of refurbishment and overall costs.
-Excellent mechanical performance: elasticity and tensile strength increased by 2-3 times, reaching 4-7 megapascals, providing professional grade cushioning and rebound.
-Performance retention rate: increased by more than 5 times, maintaining initial performance even after long-term use.
-Anti aging and anti-oxidation: the anti-aging property is greatly enhanced, the color is bright and not easy to change, and the high temperature resistance is better.
-Environmental safety: Meets food grade hygiene standards, with no heavy metals or harmful precipitates.
-Low packing density and three-dimensional effect: Low packing density, strong three-dimensional effect of water chestnuts, uniform surface friction after paving, beautiful and anti slip.

Suitable indoor sports venue types and product application value
1. Children's Physical Fitness Center and Early Education Sports Center
-User challenge: Children are sensitive to odors, and traditional rubber flooring can easily cause discomfort or allergies; The activity area needs high elasticity to protect joints and bones.
-Product advantages: Odorless EPDM granules meet food grade environmental standards, making them safe even for young children to bite and come into contact with; 4-7 megapascals of high elasticity effectively cushioning the impact of falls; Bright and color resistant colors can be combined into cartoon patterns to enhance the fun of the space.
-Customer case (anonymous): A chain children's fitness center in East China used ordinary rubber floor mats, but after closing in summer, there was a noticeable odor, leading to a 30% increase in parental complaints. After replacing with odorless EPDM granules (5mm granule size, orange+blue combination), the indoor air quality meets the standard through third-party testing, and there is no significant color loss after 18 months of use. The elasticity retention rate exceeds 90%, and the renewal rate increases by 22%.
2. High end fitness clubs and private teaching studios
-User challenge: The strength training area and team exercise room require high-density impact absorption to reduce sports injuries; At the same time, maintain a high-end brand image and ensure that the floor does not have a pungent odor or fading.
-Product advantages: The sulfur free molecular structure ensures that the granules remain stable under long-term sweat and detergent erosion; The improvement of aging resistance makes the ground almost have no performance degradation within 5 years; Support customized business color schemes such as dark gray and black, paired with three-dimensional granular textures to create a professional and understated texture.
-Customer case (anonymous): A boutique fitness studio in South China selected customized 3-5mm odorless EPDM granules (dark gray with a small amount of yellow accents) for the renovation of the comprehensive training area. Member feedback states that there is no smell of rubber at all, and the ground feedback is clear during actions such as flipping and pulling. After two years of operation, there were no cracks or granule shedding on the ground, and maintenance costs were reduced by 60% compared to the previous use of PVC floor adhesive.
3. Indoor badminton hall, table tennis hall, and multi-purpose sports hall
-User Challenge: Quick start, emergency stop, and jumping actions require consistent rebound and friction coefficients on the ground; The venue is illuminated by multiple lights, and fading materials can affect the appearance of professional events.
-Product advantages: The elasticity reaches 4-7 megapascals and is evenly distributed, reducing the burden on athletes' knees and ankles; The antioxidant function keeps competitive colors such as red and green bright for a long time without the need for frequent color supplementation; The low packing density design ensures clear granule edges and stable anti slip values within the ideal range.
-Customer case (anonymous): In the indoor badminton hall of a sports center affiliated with a certain city in North China, the original polypropylene suspended floor arched due to thermal expansion and contraction, and the surface slipped after wear and tear. Using odorless EPDM granules for on-site casting with a thickness of 13mm (customized color scheme with grass green and white boundary lines). After testing by a laboratory accredited by the China National Accreditation Service for Conformity Assessment (CNAS), the impact absorption reached 38% and the vertical deformation was 0.6mm, which meets the standards of the International Badminton Federation. After one year of operation, no complaints about odor or slipping have been received.
4. Indoor school gymnasium and kindergarten activity room
-User Challenge: Educational institutions have strict requirements for environmental qualifications and are required to provide testing reports; Simultaneously cope with high-frequency use and low-cost maintenance.
-Product advantages: It can meet food grade hygiene standards and provide third-party testing reports such as SGS; The service life is increased by more than 3 times, and it can withstand 8-10 hours of high-intensity use per day; Support quick customization of school representative colors (such as blue+white), as well as any granule size of 1-6mm, to meet the functional zoning of different areas.
-Customer case (anonymous): An international school in Southwest China renovated the indoor gymnasium of the primary school department. The original EPDM granules became hard, white, and emitted a sulfur smell after 3 years of use. Replace with odorless EPDM granules customized with a granule size of 4mm (dark blue+light blue combination), and put into use 7 days after construction. Two years later, the follow-up showed that the granules had no fading or powdering, and the elasticity test value remained at 95% of the initial value. The sports group reported a decrease of 18% in the rate of student sports sprains.

Why choose our odorless EPDM granules
1. More than 25 years of industry experience: Continuous iteration from formula to production process, especially proficient in the application of sulfur free technology.
2. A complete set of advanced production lines: ensuring batch stability, with consistency in parameters such as bulk density, granule size, and angle far exceeding that of peers.
3. Comprehensive customization service: supports any color (Pantone color code can be matched), granule size (1-6mm and special requirements), packaging specifications, small batch minimum order, fast sampling and delivery.
4. Rich application cases: We have served over 500 indoor sports venues both domestically and internationally, covering from professional competition venues to children's entertainment areas.

Whether you are planning to build a new indoor basketball court, renovate the flooring of a gym, or looking for safe floor mat materials for a kindergarten, we can provide a one-on-one odorless EPDM pellet solution based on your area, budget, color preferences, and performance requirements. Contact us immediately for free samples, color cards, and targeted quotes - your venue deserves a quieter, more durable, and safer ground system.

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.