CHARLES D. WINTERS / SCIENCE PHOTO LIBRARY CHARLES D. WINTERS / SCIENCE PHOTO LIBRARY
Polyurethane. Glass beaker filled with polyureth- ane foam, a type of plastic. Polyurethane foam was once widely used to fill soft furnishings. Its use has now been restricted because burning the plastic releases deadly fumes of isocyanate.
Model release not required. Property release not required.