Welcome. 1  Welcome to the Internet home of Park County School District 6. Together, the eight schools that comprise our district provide a safe, empowering learning environment for kindergarten through twelfth grade students in Cody, Wyoming.
Insulation. Styrofoam insulates much more effectively than plastic, which means your cold drinks stay colder longer and your hot drinks stay hotter. Plastic cups are not recommended for hot drinks, and they do not have the insulation properties of Styrofoam.
PVC is cheaper than ABS, is pressure-rated (pressure rated ABS is less available and far more expensive), and can be fused (glued) by solvent welding, whereas ABS can be only by ABS cement. August 6, 2013, 10:19pm. ABS is definitely the plastic of the 20th century. It outperforms many other plastics in many areas.