EPDM Rubber Flooring: Ground Guards to Protect Sports Safety
Table of Contents
On the colorful ground of children's playgrounds and campus tracks, EPDM granules are reshaping our public space with an annual market growth rate of 18%.
This mysterious material made of EPDM is not only a “cushion airbag” when children fall, but also a color palette for urban landscapes.
Four major advantages of EPDM
Safety protection
The impact absorption rate of EPDM is 35-50%, and the vertical deformation value is controlled in the ideal range of 4-12mm. According to the data of campus renovation in Xuhui District, Shanghai in 2024, the student sports injury rate dropped by 52% after replacing the EPDM runway. Its surface friction coefficient is 0.6-0.8, achieving a perfect balance between anti-slip and sports performance.
Good environmental resistance
By adding anti-ultraviolet agents and antioxidant ingredients, EPDM remains elastic in an environment of -40℃ to 80℃. The actual measurement of the open-air trail of Guangzhou Chimelong Water Park shows that the material has a 5-year color difference change of <10% under an environment with an average daily ultraviolet radiation of 15MJ/㎡.
Environmental protection and health dual certification
Using food-grade raw materials, the content meets the EN71-3 international toy safety standard. China is the first to pass the new national standard GB/T 14833-2020 “Synthetic material sports field flooring”, and the formaldehyde emission is <0.01mg/m³ 24 hours after construction.
Color economic aesthetics
Prefabricated EPDM granules provide 200+ standard color numbers and support customized patterns. Shenzhen Qianhai Community upgraded the single fitness area to a somatosensory interactive space through colored EPDM partitions, and the venue utilization rate increased by 65%.
Five-step scientific construction system
Foundation treatment (5-7 days)
Concrete foundation requires a 28-day maintenance period, and the flatness error is ≤3mm/3m. The asphalt foundation needs to be tested for oil content (≤5.5%), and the key control points include slope (0.5-1%) and crack repair (epoxy resin infusion).
Waterproof layer construction (8 hours)
Two-component polyurethane waterproof coating is mixed in a ratio of 1:4, and the coating amount is 1.2kg/㎡. Focus on treating the joints of the drainage ditch, the film thickness is ≥1.5mm, and there is no leakage in the closed water test for 24 hours.
Buffer layer construction (2 days)
Black rubber granules and single-component glue are mixed in a ratio of 6:1, and the paving thickness is 8-10mm. Use a 10-ton roller to roll it three times, and the density must reach more than 95%.
Surface layer laying (3-5 days)
EPDM granules and glue are mixed in a ratio of 5:1, and constructed in two layers: bottom layer (2-3mm) + surface layer (1-2mm). Use a paver to operate, and hot air curtain insulation must be enabled when the temperature is below 10℃.
Marking maintenance (72 hours)
Use weather-resistant polyurethane marking paint, and the line width error is ≤±1mm. Acceptance criteria include thickness (≥13mm), rebound value (≥35%) and flame retardancy (oxygen index ≥26%).
Innovative application scenarios
Adaptive transformation
By increasing the thickness of the EPDM layer to 15mm, the Chaoyang community in Beijing has increased the impact absorption rate to 55%, and the injury rate of falls during morning exercise for the elderly has dropped by 40%.
Intelligent thermal management
The EPDM floor mats embedded with phase change materials in the Hangzhou Asian Games Village have reduced the surface temperature by 10-15℃ in summer, and the average daily use time of the venue has been extended by 3 hours.
Acoustic improvement design
The Shanghai Concert Hall Square uses porous EPDM with an environmental noise absorption coefficient NRC of 0.75 to create an immersive outdoor performance space.
Full-cycle maintenance strategy
Daily maintenance
Neutral detergents are used for cleaning every month, and stubborn stains can be treated with 120℃ high-pressure steam. Use weak acid and alkali solvents, and sharp instruments need to be placed on protective mats when entering the venue.
Seasonal maintenance
Drainage systems should be checked during the rainy season, and snow accumulation should be cleaned in time when the thickness is >5cm in winter. In areas with strong ultraviolet rays, it is recommended to spray anti-aging coating every 2 years.
Damage repair
Local bulging is repaired by radial incision injection, and the worn area is polished to the buffer layer and then covered with particles of the same color. The overall renovation cycle is usually 8-10 years.
With the advancement of China’s “Urban Renewal Action Plan”, EPDM is moving from sports fields to community micro spaces. According to data from the Ministry of Housing and Urban-Rural Development of China, the number of newly added EPDM venues in china will reach 35 million square meters in 2025. This material that integrates safety protection with environmental aesthetics is building a visible safety line for people to exercise.
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EPDM Rubber Flooring: Ground Guards to Protect Sports Safety
On the colorful ground of children’s playgrounds and campus tracks, EPDM granules are reshaping our public space with an annual market growth rate of 18%.
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