7750C-Sulfur Free Green EPDM Rubber Granules

In today's pursuit of green building materials and high-performance surface layer materials, traditional EPDM granules face application limitations such as odor release and accelerated aging due to their sulfur-containing components. Our sulfur free green EPDM rubber granules adopt revolutionary sulfur free crosslinking technology to eliminate sulfuric acid decomposition products from the root, achieving true odorless and food grade environmental standards. At the same time, the molecular structure is more stable, the elasticity and tensile strength are increased by 2-3 times, and the anti-aging property and color retention rate are greatly enhanced. Whether it's sports fields, children's playgrounds, or high-end landscape projects, sulfur free green EPDM granules bring users a safer, more durable, and more aesthetically pleasing new experience.

FAQ

Q1: What is the core difference between sulfur free green EPDM granules and ordinary EPDM granules?

A: Ordinary EPDM granules use sulfur as a vulcanizing agent, which decomposes into sulfuric acid in high temperature or ultraviolet environments, releasing a pungent odor and accelerating aging. Our sulfur free granules are completely sulfur free, odorless, and have a more stable molecular structure, extending their service life by more than three times.

Q2: What is the specific level of mechanical performance of the product?

A: After testing, the elasticity and tensile strength of sulfur free EPDM granules are 2-3 times that of ordinary products, and the tensile strength reaches 4-7 megapascals. This means that the paved site is more impact resistant, less prone to cracking, and suitable for high-frequency use in sports fields and children's activity areas.

Q3: What colors and sizes are supported for customization? Is the minimum order quantity high?

A: We offer full-color customization, from basic colors to enterprise exclusive colors. The conventional granule size range is 1-4mm, and any specification of 0.5-6mm can be produced according to demand. The minimum order quantity is flexible, and small batch orders can also be quickly responded to.

Q4: Does the product truly meet food grade environmental standards?

A: Yes, it is. The sulfur free formula does not contain heavy metals or harmful volatiles, and has been tested by authoritative institutions to meet the hygiene standards for food contact materials. It can be safely used in environments with high environmental requirements such as kindergartens and pet areas.

What core needs can the product solve for you?

Venue odor problem: There is still no odor under high temperature and sun exposure, and it can be used safely both indoors and outdoors.

Frequent renovation costs: increase service life by three times, significantly reducing maintenance and re installation costs.

Fast color fading: The antioxidant formula makes the colors vibrant and long-lasting, and even after years of engineering delivery, they remain as new as ever.

Environmental compliance pressure: Meet various strict environmental standards to help projects easily pass acceptance.

Advantages and User Value

1、 Sulfur free technology: completely bid farewell to odor and aging problems

Traditional EPDM granules add sulfur during the vulcanization process and are exposed to hot oxygen and ultraviolet light for a long time. The sulfur gradually precipitates and oxidizes to form sulfuric acid, which not only produces an unpleasant odor but also catalyzes the breakage of molecular chains, leading to granule hardening and pulverization. Our sulfur free green EPDM granules adopt a new peroxide crosslinking system, which is completely free of sulfur elements, therefore:

No sulfuric acid decomposition products: After accelerated aging testing at 80 ℃ for 72 hours, the odor level remains at level 1 (no obvious odor).

Molecular structure stability: The retention rate of elongation at break is increased by more than 5 times, and the actual outdoor service life can reach more than 10 years.

2、 Mechanical performance leap: elasticity and tensile strength increase by 2-3 times

Tensile strength (MPa): 4.0-7.0

Tensile elongation at break (%): 400-600

Rebound rate (%): 45-55

Higher elasticity and tensile strength mean that the sports field provides stronger joint protection; The adhesive layer between granules and glue is not easy to peel off; Heavy equipment can still restore its original state after being crushed.

3、 Weather resistance and anti-aging: color brightness retention rate increased by 5 times

The product adopts a complex system of hindered amine light stabilizer and efficient antioxidant, combined with the inherent inertness of sulfur free substrate. After QUV accelerated aging test (3000 hours):

Color difference Δ E ＜ 1.5 (ordinary product Δ E ＞ 6).

There is no powdering or cracking on the surface.

Low packing density (about 0.65-0.75 g/cm ⊃3;), strong three-dimensional effect of granule edges, full visual effect after paving, and excellent anti slip performance.

4、 Excellent high temperature resistance

After being continuously placed in a high temperature environment of 120 ℃ for 48 hours, sulfur free green EPDM granules do not soften, flow, or change color. Especially suitable for high-temperature regions such as the Middle East and Southeast Asia, as well as rooftop stadiums exposed to summer sun.

5、 Food grade environmental standards

Through RoHS, REACH, and GB 36246-2018 "Synthetic Material Surface Sports Fields for Primary and Secondary Schools" testing, no heavy metal content was detected (below the detection limit), and volatile organic compounds (VOCs) were less than 10 μ g/g. It can be directly used in harsh scenarios such as food processing plant floorings and indoor activity areas in kindergartens.

Service: Color, granule size, packaging, on-demand production

Color: 18 standard colors, precise matching of Pantone color codes, adjustable for any special color.

granule size: customizable within the range of 0.5-6mm, with the most commonly used being 1-2mm (fine type) and 2-4mm (standard type).

Packaging: 25kg laminated woven bag, ton bag, or customized according to customer requirements.

What application challenges has the product solved?

Indoor sports facilities (basketball court, gym, badminton court)

Challenge: Odor accumulation in confined spaces, high user complaint rates, and difficulty in meeting air quality standards.

Solution: Sulfur free granules have no odor even in closed window environments during summer, meeting indoor air quality standards.

Kindergarten and children's playground

Challenge: There is a high risk of direct contact and biting of children's skin, with extremely high safety requirements.

Solution: Food grade environmental standards, no heavy metal precipitation, and high elasticity effectively reduce fall injuries.

High end residential landscape trails and garden engineering

Challenge: After being exposed to sunlight and rain, the color turns gray and granules fall off, affecting the quality of the community and the satisfaction of homeowners.

Solution: Improve UV resistance by 5 times, with no significant color fading within 3 years; Low density angular granules are non slip and have a premium texture.

Rooftop sports field and outdoor grandstand

Challenge: In summer, the surface temperature can reach over 70 ℃, causing ordinary granules to become soft, foamy, and sticky.

Solution: High temperature resistance of 120 ℃, stable structure without deformation, maintaining good foot feel.

Pet activity areas and animal breeding facilities

Challenge: Animals have a sensitive sense of smell, and the smell of ordinary rubber may cause stress reactions.

Solution: Truly odorless and meeting food grade standards, pets can safely come into contact with it.

Customer Application Case (Anonymous)

Case 1: Training Hall of a Professional Handball Club in Germany

Requirement: After using the original venue for 3 years, there is a noticeable odor, and athletes have reported discomfort in their eyes. They require the replacement of completely odorless EPDM granules and must pass strict Blue Angel environmental certification.

Solution: Use light gray and red sulfur free EPDM granules (granule size 2-3mm) with a thickness of 10mm for paving, and mix the surface layer with polyurethane adhesive.

Effect: After renovation, the venue has passed the Blue Angel certification. Follow up after 2 years of use: there is no odor, the tensile strength still remains above 5.5 MPa, and the rebound value of the venue meets the standards of the International Handball Federation. The facility manager of the club said, "This is the most durable surface material we have ever used

Case 2: Outdoor activity area of a large chain kindergarten in Singapore

Requirement: The local area experiences high temperatures and humidity throughout the year (with an average daily temperature of over 30 ℃ and humidity of 80%). Ordinary granules fade and emit a "tire smell" within one year, leading to complaints from multiple parents. The park requires that new materials must be odorless, have long-lasting colors, and be certified with the Singapore Green Building Mark.

Solution: Customize bright yellow and sky blue sulfur free granules (granule size 1.5-2.5mm) with a laying area of 2000 square meters, and add an elastic buffer layer on the bottom layer.

Effect: After 24 months of delivery, the color brightness retention rate is 90%, and there is no harmful substance dissolution or odor detected by third-party testing. Principal feedback: "The children move barefoot on it every day and have never experienced any skin allergies or discomfort. Even after being exposed to sunlight, they can't smell any smell when they are close to the flooring

Case 3: Landscape Trail in a High end Residential Area in the United Arab Emirates

Requirement: The developer requires that the trail color be exclusive "desert gold" and must withstand high temperatures above 80 ℃ without softening or fading. The project is located in Dubai, where outdoor temperatures often reach 48 ℃ in summer and surface temperatures exceed 75 ℃.

Solution: Make 3 samples according to the Pantone color chart to confirm the color, produce 2-4mm sulfur free granules, add enhanced UV resistant coating layer, and lay a total area of 3500 square meters.

Effect: Two complete summers have been completed without discoloration, sticking feet, or cracking. The property engineering department stated that "in the past, partial repairs were required every year, and after using sulfur free products, there was zero maintenance for two years, with maintenance costs only 1/6 of before." The project won the local Green Community Design Award.

Case 4: Indoor and outdoor activity areas of a pet boarding center in Japan

Requirement: Dogs have a sensitive sense of smell, and the ordinary rubber smell can cause pets to become restless and refuse to enter the activity area. At the same time, it is required that the material can withstand scratching, be easy to clean, and achieve food contact level safety.

Solution: Light green sulfur free EPDM granules (granule size 1-2mm) are used, with a total area of 800 square meters and a thickness of 6mm laid indoors and outdoors.

Effect: After being put into use, pets have no rejection reactions and are actively active. After one year of operation, there are no obvious claw marks on the surface, and cleaning can be done by rinsing with a water gun. The center manager said, "This is the only rubber flooring that allows pets to actively run up and play

Whether you are an engineering contractor, design company, school/kindergarten purchaser, or end owner, we can provide you with samples, technical parameter tables, paving guidance, and weather resistance estimation reports. From 1-ton trial orders to 1000 ton level projects, we take sulfur free technology as our core competitiveness to help you create safer, more durable, and more pleasing flooring systems.

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.