EPDM granules contains peroxide and sulfur. Both of them can be produced. Our output is 20, 000 MT per year. Different grain size color EPDM granule is used for the track - and - field games, tennis field, gym, and other sport fields, also can be used for the leisure square, agedness apartment, teener center, infants' school, office, family garden, and other special environment. The plastic track is sticked together by the polyurethane from the top different grain size color EPDM granules to the bottom black mixed rubber sheet.