Whenever I try to change the security settings on anything in my C: drive, I get this message. I can't save anything in it.
I think you are going to find that any hard resin which will be chemical set or heat set is not going to be recyclable in any easy sense, especially with carpet mixed it.Further, I think you will find that since sculptors think of things as being permanent and the topic of recycling plastics is so complicated, you will have more luck (if any) by asking in Math Science - Engineering or Chemistry about the possibilities.
yes itll be safe, keep it a few inches form the walls to be safe though. whatcha growin?