RAL 8004 Copper Brown-Sulfur Free EPDM Rubber Granules

We have introduced sulfur free brown EPDM rubber granules to address the problem of odor, fading, and brittleness that traditional brown EPDM granules are prone to under high temperature or long-term UV irradiation. This product completely eliminates sulfur components and prevents the precipitation of sulfuric acid substances from the source, achieving true odorlessness, long lifespan, and color stability. It is particularly suitable for indoor and outdoor sports venues and landscape paving that require strict environmental protection and durability.

FAQ

Q1: What are the significant differences in odor between sulfur free brown EPDM granules and traditional brown granules during use?

A: Traditional EPDM granules contain sulfur, which decomposes into sulfuric acid under high temperature and ultraviolet radiation, producing a pungent odor. Our sulfur free granules do not contain sulfur, and even if exposed to long-term sunlight or high temperatures, they will not release any odor, making them suitable for indoor and outdoor enclosed or semi enclosed environments.

Q2: Can the service life really be increased by more than three times? What is the basis?

A: Yes, it is. The sulfur free formula makes the molecular chain structure more stable and less susceptible to damage from ultraviolet radiation, ozone, and humid environments. Actual accelerated aging tests have shown that its tensile strength and elongation at break can be maintained for more than three times longer than traditional sulfur-containing granules.

Q3: What are the benefits of increasing elasticity and tension by 2-3 times for actual installation?

A: The tensile strength of the product reaches 4-7 megapascals, and the elastic recovery ability is significantly enhanced. This means that the paved track and flooring mats are less prone to cracking or powdering during use, providing better cushioning for athletes or children during activities and maintaining an ideal foot feel over the long term.

Q4: Will the color quickly darken or turn yellow?

A: I won't. The sulfur free technology significantly improves the antioxidant properties, and the brown color powder is stably locked in the molecular structure. Under the same outdoor exposure conditions, the color difference value changes by only 1/5 of ordinary granules, and the color brightness retention rate is increased by more than 5 times.

Q5: What level of environmental performance does it achieve?

A: After testing, the product meets the hygiene standards for food grade contact materials and does not contain harmful substances such as heavy metals and polycyclic aromatic hydrocarbons. It can be directly used in high safety places such as kindergartens, pet activity areas, and fitness trails.

Requirements and Solutions

Solving the problem of odor: In enclosed spaces such as indoor sports halls and school corridors, the sulfuric acid odor emitted by traditional granules when heated is uncomfortable. Sulfur free granules completely eliminate this problem.

Addressing the high cost of frequent refurbishment: Ordinary granules will become brittle and fade within 3-5 years, and the lifespan of sulfur free granules will be increased by more than three times, reducing the frequency of re laying and lowering long-term maintenance costs.

Resolve rapid performance degradation: increase elasticity and tension by 2-3 times, and maintain initial safety buffering performance even after years of use on the site.

Addressing environmental compliance risks: meeting food grade standards without worrying about environmental inspections or potential health hazards to users.

Advantages and Application Value

1、 Odorless, innovative at the source

Technical principle: Completely abandon sulfur and sulfur-containing accelerators, and adopt a peroxide crosslinking system.

User value: Once installed, it can be put into use without any irritating odor; Especially suitable for hospital rehabilitation areas, indoor children's playgrounds, and high-end club fitness areas.

2、 Ultra long lifespan, performance retention rate increased by more than 5 times

Actual test data: After accelerated aging for 2000 hours, the tensile strength retention rate is greater than 85%, while ordinary sulfur-containing granules are usually less than 20%.

User value: Over 10 years of worry free, reducing full lifecycle costs.

3、 Leap in elasticity and tensile strength (4-7 megapascals)

Process guarantee: Optimize the raw rubber system and filler dispersion technology to achieve uniform cross-linking density.

User value: The impact absorption and vertical deformation indicators of the runway are better; The risk of sports injuries is reduced, and the consistency of flooring rebound feedback is good.

4、 Anti aging and anti ultraviolet, durable color

Fact based: Sulfur free technology avoids catalytic degradation of acidic by-products; The brown formula uses weather resistant color powder.

User value: After five years, the venue will still be as good as new, without the need for frequent color updates or surface layer changes.

5、 Resistant to high temperatures and adaptable to extreme weather conditions

Tolerance range: Long term use temperature can reach above 80 ℃, short-term tolerance of 100 ℃ without softening or deformation.

User value: Suitable for outdoor sports fields exposed to summer sun, rooftop garden tracks, and projects in desert areas.

6、 More environmentally friendly, food grade standards

Certification support: Passed GB 36246-2018, REACH, RoHS, etc., free of sulfur, heavy metals, and polycyclic aromatic hydrocarbons.

User value: It can be directly used in kindergarten activity areas, pet activity mats, and disabled training centers, with safety and transparency.

7、 Low packing density, strong three-dimensional sense of water chestnut

Physical characteristics: The packing density is about 0.55-0.65 g/cm ³, and the granules are irregular polyhedra with distinct edges and corners.

User value: Less usage per unit area, strong adhesive bonding and anchoring properties; After paving, the surface is moderately rough, slip resistant, and aesthetically pleasing.

8、 Flexible customization service (color, granule size, minimum order quantity)

Optional specifications: Color supports brown gradient and customized colors; The granule size ranges from 0.5mm to 4mm.

User value: Whether it is a 5 ㎡ model room or a 5000 ㎡ large venue, it can be quickly sampled and delivered in batches. 25 years of industry experience+a complete set of advanced production lines, fast order response, and low minimum order quantity.

Problem solving in application scenarios

Indoor children's playground: Strong odor in enclosed spaces, parents concerned about environmental protection - odorless+food grade standards, ready to use upon opening

School plastic runway: fade and become brittle after high temperature exposure, frequent repair - life increased by 3 times, anti-aging+color stability

Rehabilitation Trail for Nursing Home: High elasticity is required to reduce falls and injuries, and it should be dirt resistant - with a tensile strength of 4-7 MPa and brown color, stain resistant, and sun resistant

Outdoor landscape fitness area: cracking caused by sun and rain, sulfuric acid precipitation corrodes the base layer - sulfur free, high temperature resistant, molecular structure stable and non degradable

Pet park flooring mat: Claw scratch erosion+urine erosion, traditional granules are prone to powdering - antioxidant+chemical corrosion resistance, easy to clean and odorless

Customer Application Case (Anonymous)

Case 1: Athletics Field of a High end International School

Challenge: The original playground was made of traditional sulfur-containing granules, and during high temperatures in summer, the track emitted a noticeable odor. Parents complained; And after 4 years of use, the red area will extensively powder and fade.

Solution: Use sulfur free brown EPDM granules (granule size 2-4mm) mixed with gray granules, and lay a mixed runway surface layer with a thickness of 13mm.

Effect: There is no odor on site the day after construction; After 18 months of use, the color remains above 95% of its initial value, and the measured impact absorption value remains in the range of 36-42% (the national standard requires 35-50%). The school has provided feedback that the attendance rate of students in physical education classes has increased, and there have been no more environmental complaints.

Case 2: Fitness Trail in an Outdoor Health Community

Challenge: Traditional materials become hard under low temperatures in winter, and the surface temperature becomes high and sour after exposure to sunlight in summer; Frequent repairs result in high operating costs.

Solution: Use sulfur free brown EPDM granules (1-3mm), combined with single component polyurethane adhesive, to lay a permeable walkway with a total length of 2.3 kilometers.

Effect: Used for 26 months, no cracks, no powdering, no odor; After being exposed to sunlight in summer, the surface temperature is about 8 ℃ lower than traditional materials (due to their low density and formula heat resistance); According to community property calculations, compared to previous materials, it can save about 420000 yuan in re paving and maintenance costs within five years.

Case 3: A European pet activity mat manufacturer

Challenge: Export products must pass rigorous food grade contact and odor free testing; Traditional brown granules often emit a sulfur odor after being transported in high-temperature containers.

Solution: Customize food grade sulfur free brown EPDM granules with a granule size of 0.5-1.5mm and add antibacterial agents.

Effect: Passed the German LFGB test in one go; Customer feedback: After being stored in a 35 ℃ warehouse for three months, the product still has no odor when unpacked; The subsequent order volume increased from 20 tons per month to 80 tons.

We can quickly produce samples according to the color depth, granule size range, and packaging specifications you need. Whether it is a small sample or a large-scale centralized procurement, provide technical solutions and quotations within 24 hours.

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.