Hybrid running track article and method for preparing the same

A method for producing a hybrid running track article having, from top to bottom, a top coating layer made from a first composition and a bottom layer from a second composition, the method comprising:

• i) applying the second composition comprising a 1K solvent-free polyurethane binder and rubber particles on the ground;
• ii) curing the second composition to obtain the bottom layer;
• iii) applying the first composition comprising an externally emulsified polyurethane dispersion and rubber particles, wherein the externally emulsified polyurethane dispersion is derived from:
• (Ai) an isocyanate component comprising one or more compounds having at least two isocyanate groups, (Bi) an isocyanate-reactive component comprising one or more compounds having at least two isocyanate-reactive groups;
• (Ci) an optional catalyst, (Di) an external emulsifier, (Ei) a chain extender and (Fi) water;
• iv) drying the first composition to form the top coating layer on the bottom layer.