| 摘要 |
A racetrack surface composition including a synthetic polymer component, a hydrocarbon oil fluid between 40-90.degree.F, and a particulate material such as sand. The synthetic polymer component is preferably either an elastomer, or an elastomer in combination with non-elastomeric polymer; or generally a mixture of oil soluble and oil dispersible polymers which together with the oil form a binder for the particulates. The racetrack composition readily forms a pad and the cushion portion does not clump or compact but maintains its granular, rakeable quality even at track temperatures above about 130.degree.F. The composition is not adversely affected by wet weather.
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