It looks like you’re referring to EPDM flooring for children’s play areas (sometimes people mistakenly type PDM — but the correct term is EPDM). EPDM stands for Ethylene Propylene Diene Monomer, a type of synthetic rubber widely used as safe, impact-absorbing playground flooring. 🛝 What Is EPDM Flooring for Children’s Play Areas? EPDM rubber flooring is a safety surface designed specifically to protect kids in play zones — both indoors and outdoors. It’s made from colored rubber granules bound together (often with a polyurethane binder) to form a cushioned, durable, non-toxic surface that reduces injury risk from falls and makes play areas more comfortable and safe.