Spring City is a town in Rhea County, Tennessee, United States. The population was 2,025 at the 2000 census. Spring City is located at 35Â°41â²22â³N 84Â°51â²50â³W / 35.68944Â°N 84.86389Â°W / 35.68944; -84.86389 (35.689422, -84.863885).
In general, MOST foam play flooring / mats are made with a material called EVA (ethylene vinyl acetate) which is a foam rubber compound. For a while now it has been viewed as a healthier alternative to PVC and the process of making it excludes the use of chlorine which can produce carcinogenic compounds called dioxins.
The top layer is not as firm as polyethylene foam, but will provide a bit more footing than if the entire mat were made of the bottom, softer foam. For example, you may see practice mats where the bottom 50% is 36 ILD, while the top 50% is 75 ILD.