2-4mm Yellow EPDM Granules

2-4mm yellow EPDM granules are high-quality colored rubber granules engineered for sports surfaces, artificial turf infill, and outdoor recreational mat systems. This particle size delivers excellent elastic cushioning and structural stability while maintaining good workability during installation and a smooth, uniform surface finish. It is widely used in running track top layers, playground safety surfacing, fitness trails, and landscape paving. Our EPDM granules are produced using peroxide vulcanization technology — there is no sulfur in our EPDM granules, so no sulfides are produced when exposed to sunlight, meaning no odor, no pollution, and no harm to human body. The product offers excellent weather resistance: whether facing the intense heat and sunlight of the Middle East, the severe cold and freeze-thaw cycles of Northern Europe, or the high humidity and heavy rainfall of Southeast Asia, it maintains lasting color and physical performance. We are one of the highest-quality and most cost-effective EPDM granule manufacturers in China and the world, and we would like to send free samples for you to test.

Core User Needs and the Problems EPDM Granules Solve

Buyers of 2-4mm yellow EPDM granules typically face the following practical issues:

First, color durability challenges on outdoor surfaces. Many low-cost rubber granules show noticeable fading, whitening, or chalking within one to two years under UV exposure and severe temperature fluctuations, leaving surfaces looking aged and driving up maintenance and replacement costs. The saturated backbone structure of EPDM gives it outstanding UV and oxidation resistance, slowing the aging process at the molecular level.

Second, odor and environmental compliance pressure in high-temperature environments. Rubber granules using traditional sulfur vulcanization may release sulfur-containing odors after prolonged exposure to summer heat, triggering complaints in sensitive environments such as schools, residential areas, and indoor fitness facilities — and even affecting project acceptance. Our peroxide-vulcanized EPDM granules contain no sulfur, eliminating the formation of sulfides at the source.

Third, adaptability concerns across different climatic conditions. Customers exporting to cold regions such as Russia and Canada worry about low-temperature embrittlement; Middle East customers worry about sustained high temperatures accelerating material degradation; users in rainy regions focus on performance retention after prolonged water immersion. The formulation of 2-4mm yellow EPDM granules balances wide-temperature-range stability with water and weather resistance, covering the usage requirements of major climate zones worldwide.

Fourth, balancing particle size consistency with installation efficiency. Uneven particle size distribution leads to inconsistent surface porosity, affecting bond strength and appearance uniformity. The 2-4mm specification is strictly screened and controlled; when mixed with polyurethane binder, it offers moderate flowability — suitable for both mechanical paving and manual leveling — helping improve installation efficiency and finished-product consistency.

Applications and Core Advantages

Main Application Areas

Sports tracks and court surfaces: 2-4mm yellow EPDM granules are commonly used as the colored topcoat aggregate in mixed-type or permeable-type track surfaces, mixed with binder and applied by spraying or troweling to form a slip-resistant, wear-resistant, and vividly colored sports surface. On basketball courts, tennis courts, and multi-purpose sports areas, yellow granules can be used for zone markings or full-surface paving.

Playground safety surfacing: In wet-pour playground systems, 2-4mm granules are a common top-layer specification — providing sufficient texture depth for slip resistance while working with the underlying cushioning structure to meet fall-height safety standards. Yellow granules offer high visual recognition in children's activity areas.

Artificial turf infill systems: As an elastic infill layer for artificial turf, 2-4mm EPDM granules help regulate fiber rebound performance and reduce joint load on athletes. Yellow granules can also create clear contrast with green turf fibers for field markings, reducing the need for frequent line painting.

Outdoor leisure and landscape paving: Fitness trails, rooftop gardens, pool surrounds, and commercial outdoor seating areas can all use EPDM granules bonded with binder to form seamless elastic surfaces. The yellow tone provides a warm visual element for landscape design.

Durability Performance Across Global Climates

High-temperature and high-UV regions (Middle East, Australia, parts of Africa): The saturated hydrocarbon backbone of EPDM is intrinsically stable against oxygen, ozone, and UV. The C-C crosslinks formed by peroxide vulcanization have higher bond energy than the C-S bonds of sulfur vulcanization and are less prone to breaking and degrading under sustained heat. Accelerated aging data show that peroxide-vulcanized EPDM retains approximately 80% tensile strength after 2000 hours of aging, while sulfur-vulcanized systems drop to about 50% over the same period. This means that in high-sunlight regions, color retention and mechanical performance decay significantly more slowly.

Cold and freeze-thaw cycling regions (Northern Europe, Russia, Canada): EPDM's glass transition temperature can be as low as approximately -60°C, remaining elastic rather than brittle at extremely low temperatures. 2-4mm granules resist cracking and chalking in freeze-thaw environments, and surface structural integrity holds up better after winter snow-removal operations.

Rainy and high-humidity regions (Southeast Asia, UK, Japan): EPDM has good resistance to water, dilute acids, and alkalis. The stacked structure of 2-4mm granules forms interconnected drainage pores; combined with a permeable base, this effectively prevents standing water and reduces the risk of binder hydrolysis from prolonged moisture exposure.

Frequently Asked Questions (FAQ)

What shade of yellow is the 2-4mm yellow EPDM granule? Can a specific color code be customized?

Our standard yellow granules cover the mainstream color range from bright yellow to mid-yellow. If your project requires a specific RAL or Pantone color code, we can custom-match to the color card; you may also send a physical color sample and we will match to your sample. Batch-to-batch color consistency is one of our key quality control indicators.

What is the practical difference between peroxide vulcanization and sulfur vulcanization in actual use?

The most direct differences are odor and aging performance. Sulfur vulcanization systems form C-S and S-S crosslinks in EPDM; these bonds break more easily under heat and UV, potentially releasing sulfur-containing compounds and causing performance decline. Peroxide vulcanization forms C-C crosslinks with higher bond energy and a more stable structure. Data show that peroxide-vulcanized EPDM retains approximately 80% tensile strength after 2000 hours of accelerated aging, versus about 50% for sulfur-vulcanized systems. This translates directly into longer service life and more stable color performance.

What installation methods is the 2-4mm particle size best suited for?

2-4mm is one of the more versatile specifications among EPDM granules. In wet-pour playground flooring, it serves as the top-layer aggregate mixed with binder and applied by troweling or spraying to form an approximately 8-10mm thick slip-resistant, wear-resistant layer. In track surfaces, it can be used in combination with 1-3mm granules — 2-4mm provides surface texture and a wear-resistant skeleton. In artificial turf infill, granules of this size are less likely to be carried off by turf fibers and provide good rebound support. If you are unsure about particle size selection, we can advise based on your installation process and surface thickness requirements.

Can you provide free samples for testing?

Yes. We are happy to send free samples of 2-4mm yellow EPDM granules for you to inspect color, particle size distribution, and odor, and to conduct small-batch mixing tests. Sample quantities are arranged according to your testing needs and can usually be dispatched promptly after confirmation.

Do you have experience exporting to different countries? How are packaging and logistics handled?

We have export experience serving multiple countries worldwide and are familiar with common packaging labeling and logistics documentation requirements in different markets. Packaging supports customization (e.g., 25kg woven bags, ton bags, or customer-specified labeling), and we can arrange full-container or LCL shipments. For customers in different climate regions, we also provide corresponding storage and installation precautions before shipment.

What is the MOQ? Is there a minimum quantity requirement for color customization?

For standard-color 2-4mm yellow granules, the MOQ is flexible and determined by your total order volume and packaging requirements. RAL/Pantone custom colors or sample-matched custom colors usually require a certain batch size to ensure color consistency and controllable production costs. Please let us know your project volume and color requirements, and we will provide a clear MOQ and lead-time plan.

How can I confirm that your EPDM granules are truly sulfur-free and odorless?

We can provide technical documentation based on the peroxide vulcanization process, and we recommend a simple sensory check after receiving samples: place the granules in a sealed bag in sunlight for several hours, then open the bag and check for odor. We can also provide technical parameter records for the relevant batch. It should be noted that we focus exclusively on EPDM granule production and do not undertake installation, so formulation and process control of the material itself are the core of our quality management.

Why Choose Us

We only make EPDM granules — so we are more focused. We do not take on installation projects or divert resources into construction management; all our capacity and R&D resources are concentrated on formulation optimization, process control, and quality consistency of EPDM granules. With more than 25 years of industry experience, we have an in-depth understanding of every process parameter of the peroxide vulcanization system.

Customization capability covers the full chain from color to packaging. We support RAL/Pantone color customization, customer sample color matching, and multi-color combinations. In terms of particle size, besides 2-4mm, we can produce 0.5-1.5mm, 1-3mm, 1-4mm, and other special specifications. Packaging supports custom labeling and specifications. We support OEM, ODM, and Private Label cooperation models. Whether you are a brand owner, distributor, or large-project buyer, we can accommodate your needs flexibly.

Performance indicators are traceable and quality is verifiable. The tensile strength of our peroxide-vulcanized EPDM granules can reach 4-7 MPa, and the anti-aging performance resulting from molecular structure stability is significantly superior to conventional sulfur-vulcanized products. The product has low bulk density and strong angular three-dimensionality, with good wetting and bonding performance when combined with polyurethane binder. High color consistency and UV stability are key items in our ex-factory inspection for every batch.

Global climate applicability has been validated. From the hot, arid Middle East to cold, snowy Northern Europe, from humid Southeast Asia to the North American interior with large temperature swings, the performance of our granules under different climatic conditions has been continuously verified through feedback from export customers. Fast delivery and stable supply capacity ensure your project schedule is not affected by material supply fluctuations.

If you are looking for a reliable supplier of 2-4mm yellow EPDM granules, welcome to contact us for free samples, customized solutions, and quotations. Please let us know your application scenario, target particle size, color requirements, and estimated quantity, and we will provide targeted product recommendations and competitive pricing.

WOW(LYG) New Material Co Ltd is a manufacturer specializing in the production of EPDM granules. We use the method of peroxide sulfidation 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.