Mylar is the term many use to refer to the material used to make shiny, foil balloons for parties. It consists of metalized plastic and nylon but cannot be thrown to the curb with other recyclables such as aluminum, plastic and paper. Unlike latex balloons, foil balloons are not biodegradable.
Save and Reinflate Them
Because they're made from a more durable material than latex, "mylar" or foil balloons can be easily deflated and reinflated. Carefully remove the ribbon, flatten the balloon, and save for a future celebration.
Keep and Repurpose Them
Foil balloons can be repurposed for art projects, wrapping paper, and other upcycled uses.