What is type 6 plastic used for?

What Is Type 6 Plastic Used For?

Type 6 plastic, also known as polystyrene (PS), is a rigid, lightweight material commonly found in everyday household and disposable items. You’ve likely encountered it without even realizing—think of those clear, brittle CD and DVD cases from years ago, or the thin plastic lids that seal your takeout coffee cups. These are classic examples of type 6 in action.

Polystyrene comes in two main forms: solid and foam (commonly known as Styrofoam, although that’s actually a brand name). While the foam version is often associated with disposable trays or packaging peanuts, the rigid type—marked with the number 6 inside the recycling symbol—is used for more structured items.

Among the most familiar products made from rigid type 6 plastic are disposable plastic cutlery, disposable cups (especially for cold drinks), and even some plastic coat hangers. It’s favored for its clarity, stiffness, and low cost, making it ideal for single-use products. However, it’s also one of the less recyclable plastics. Many curbside programs don’t accept it due to contamination risks and low market demand, and it can break into small, persistent pieces that pollute the environment.

While convenient, the environmental impact of type 6 plastic has led to growing scrutiny. Some cities have banned polystyrene foam containers, and manufacturers are slowly seeking alternatives. Still, rigid type 6 remains in circulation, especially in food service and packaging industries.

Being aware of where it’s used helps make smarter choices—like opting for reusable utensils or skipping the plastic lid when possible. Small shifts can make a difference, especially with a material that lingers long after its brief moment of use.