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2026-04-21
With the development of the economy and the improvement of living standards, people 's quality of entertainment and leisure has gradually improved, and plastic running tracks have been widely laid in schools, stadiums, communities, parks and other recreational sports venues, becoming an indispensable part of modern sports facilities.
A plastic track is a layer of high molecular synthetic material laid on a base of cement concrete or asphalt concrete, mainly composed of raw materials such as polyurethane adhesives, rubber particles, fillers, and additives.
EPDM colored particle plastic ground is widely used in primary school and kindergarten running tracks or community recreational activity areas because of its good elasticity, high compressive strength, flexible design, simple construction, UV resistance, stable and bright color, wear resistance and anti-slip, and easy maintenance.
■ No bubbling
The base is made of polyurethane glue combined with elastic rubber particles, which is breathable. At high temperatures, steam pressure does not accumulate and no bubbling occurs;
■ Diverse colors
The colors are diverse and soft, with a granular surface that prevents the reflection of blinding light, is beautiful and durable, and can be used in multiple color combinations;
■ Durable and does not flake off
The surface layer is made of EPDM (Ethylene Propylene diene monomer) rubber particles, which are highly resistant to ultraviolet rays, have good weather resistance, do not shed particles, do not age easily, and are highly wear-resistant.
■ Elastic stability
Elastic stability, no difference in elasticity throughout the year, not hard in winter and soft in summer.
■ Strong shock absorption
Strong power rotation and shock absorption, emphasizing movement comfort and safety, beneficial for children and adults' sports and leisure;
■ Stable performance
The lines are not easy to peel off the paint, with bright colors that do not fade and better wear resistance.
■ Flatness meets the standard
The flatness meets the standard, the water filtration is good, there is no need to stop the race on light rain days, and the race can be resumed within a short time after heavy rain stops without water accumulation.
EPDM flooring is made with polyurethane as the adhesive and EPDM particles as the aggregate, and is formed by the adhesive curing and bonding. The standard thickness of an EPDM track is 13mm, and it is generally composed of 8mm base particles and 5mm surface particles.
▲ Measurement and layout, base acceptance and surface cleaning
After the base acceptance is qualified, measure and set out the modeling pattern, and sweep or blow off the dust, debris, etc. on the base surface with a broom or air compressor to keep the base surface dry, clean and free of cracks.
▲ Apply the base coat
Apply a one-component wet-curing polyurethane adhesive layer on the concrete base with a roller to enhance the bond between the cement concrete base and the plastic base
▲ Base construction
The construction of the base is divided into three steps: mixing, spreading, and compaction and leveling. First, the EPDM pellets and glue are mixed in proportion. Once the surface of the pellets is evenly coated with glue, they can be poured into a hopper or container bucket and transported to the construction site for uniform spreading at elevation.
During the spreading process, first use a scraper or level to level the mixture, add material to areas that do not reach the elevation, and then use an electric ironing plate to level and compact. For corners and edges that are difficult to compact, use manual patting and trimming to make them neat.
The surface layer can be laid only after the base layer has solidified.
▲ EPDM plastic surface layer construction
Make sure the base surface is dry and free of debris before applying the base layer. Mix the colored EPDM particles and polyurethane glue in proportion. During the mixing process, add the colored EPDM particles first, then slowly pour in the polyurethane glue while stirring until the surface of the particles is evenly coated with the adhesive.
The paving should be uniform and continuous to avoid causing construction connection joints. During the finishing and paving process, the trowel should be dipped in soapy water as a separator between the glue and the trowel pair to prevent the glue from sticking, while also facilitating the finishing of the surface layer and accelerating the curing reaction of the polyurethane glue.
The flatness of the surface layer should be constantly observed during the construction process, and any unevenness found should be dealt with promptly.
▲ Curing
After the topcoat construction is completed, dry curing should be carried out and the curing time should not be less than 48 hours. During the curing period, warning lines should be set up and pedestrians and vehicles should not be allowed to pass.
▲ Marking lines
Marking lines, numbers and patterns should be marked after the surface layer has fully cured. Marking lines should be marked with a theodolite and a tape measure, and numbers and patterns should first be modeled according to the design. The lines should be clear, with uniform color and no blurred edges.
INTER - CHINA MACHINERY, in combination with RS Rubber Machinery, offers comprehensive EPDM granule production lines. It provides full - scale machinery supply, process technology, and turnkey factory solutions for overseas customers.
Our goal is not only to deliver machines, but to help overseas partners establish a stable, efficient, and profitable EPDM granule manufacturing plant.
If your company is planning a new EPDM granule project or upgrading an existing line, please share your target capacity and granule size requirements.
We would be pleased to prepare a customized technical proposal for your evaluation.
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