According to relevant data, the main component of free resin is methyl methacrylate, which is non-toxic and has a slight irritating smell, and the smell automatically volatilizes after solidification.

Free resin is a biodegradable polymer material. Plastic products have entered thousands of households, and there are more and more waste plastics in garbage. Because this synthetic polymer is very stable, acid-resistant and alkali-resistant, it will not rot even if it is buried underground for hundreds of years.