Views: 0 Author: Patricia Cheng Publish Time: 2025-11-26 Origin: Site
"Plastic granules" are actually a core component of flooring materials used for laying plastic running tracks, children's play areas, fitness trails, etc. It's not a single substance, but a type of granular raw material made from high-molecular polymers.
The most mainstream and recommended type is EPDM rubber granules (Ethylene Propylene Diene Monomer). It's a weather-resistant, non-toxic, and environmentally friendly EPDM rubber. Its advantages include: stable color that doesn't fade, good elasticity, slip resistance, wear resistance, and strong UV resistance, making it particularly suitable for places with extremely high safety requirements, such as kindergartens and school playgrounds.
⚠️Note the difference: There are also PVC granules, PU granules, and recycled rubber granules on the market. Although cheaper, they are prone to aging, brittleness, and may even release harmful substances. Don't make a mistake to save money!
How to choose EPDM colored granules? Parameters & Avoidance Guide! Remember these key indicators:
1. Particle size range: Commonly 1-3mm (small granules) or 2-5mm (large granules). For kindergarten floors, 1-3mm EPDM granules are recommended for a smooth, even surface, ensuring safer running and jumping for children. 2-5mm granules are suitable for outdoor running tracks, providing better cushioning. 0.5-1.5mm granules are typically used for track surface spray coatings.
2. Color Stability: High-quality EPDM granules undergo high-temperature vulcanization, resulting in high color saturation and withstanding sun and rain. Inferior granules turn white or gray within 3 months, looking unsightly.
3. Density and Elasticity: Granules with moderate density (approximately 0.8-1.0g/cm³) offer strong resilience and a comfortable feel underfoot. A simple test is to press down on the granules; a rapid rebound after releasing the pressure indicates a good result.
4. Environmental Certification: Always verify the presence of SGS testing reports and national standard testing certificates to avoid risks such as excessive benzene or heavy metal contamination.
Tip: Don't be swayed by "low-price promotions"! Excessively cheap granules often contain recycled materials or inferior fillers, making them prone to pulverization and detachment later, leading to higher repair costs!
