The Causes of Granule Loss in Silicon PU Sports Courts: Solving the Issue at the Source. The ratio of adhesive to granules in the synthetic track is not up to standard, or the surface coating is uneven, leading to insufficient adhesive and an excess of granules. This results in insufficient adhesion of the adhesive, causing granule loss. Is the adhesive used by the synthetic track manufacturer a qualified product, and does it meet the required adhesion standards? If low-quality adhesive is used, granules are more prone to falling off. The purity of the synthetic track granules themselves must also meet the standard; if not, they will peel and fall off after exposure to the sun.

During the construction of general silicone PU plastic sports courts, the standard thickness used is 3-5mm. The surface layer of the silicone PU plastic sports court is highly resistant to stains, sturdy, and dense, making it difficult to be scratched by soles or other hard objects. A too-thin layer cannot provide adequate protection, hence the general requirement is not less than 3mm.

However, a silicone PU playground is an elastic material, and an increase in thickness can lead to a decrease in ball rebound. Too thick of a silicone PU surface can result in a very poor sports experience. Generally, a thickness of 5mm maintains elasticity without compromising protective properties. Before entering the manufacturer of the plastic track, change into standard running shoes or other footwear that is less likely to damage the track. It is important to avoid prolonged heavy loads to prevent deformation of the track surface. The edges of the plastic track should be protected and should not be moved arbitrarily. If track damage or bubbling is observed, promptly notify the construction unit for repairs.