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What is type 7 plastic?

Published in Plastic Recycling 3 mins read

Type 7 plastic is a catch-all category for plastics that don't fit into the other six recycling categories (1-6). This means it includes a variety of plastics with different chemical compositions, properties, and recyclability.

Because of the diversity within this category, type 7 plastics can be made up of:

  • Recyclable Plastics: Some type 7 plastics are recyclable, although their recyclability often depends on local facilities and the specific resin used.
  • Non-Recyclable Plastics: Many type 7 plastics are difficult or impossible to recycle through conventional methods.
  • Biodegradable Plastics: Some newer type 7 plastics are made from bio-based materials and are designed to be biodegradable or compostable under specific conditions.
  • Multi-Layer or Mixed Resin Plastics: This refers to products made by combining multiple different types of plastics or layering them together.

Here's a breakdown to further illustrate:

Feature Description
Definition A "catch-all" category for plastics not categorized as types 1 through 6.
Composition Can include a variety of plastics like polycarbonate, acrylic, nylon, and bio-plastics. Often contains multiple resins.
Recyclability Varies greatly. Some are recyclable, but many are not accepted by local recycling programs.
Common Uses Baby bottles, water cooler bottles, plastic CDs, eyeglasses, computer cases, some food containers, car parts, exterior lighting fixtures.
Health Concerns Some type 7 plastics, particularly those containing bisphenol A (BPA), have raised health concerns due to potential leaching of chemicals.

Examples of Items Made from Type 7 Plastic:

  • Baby bottles (often made with polycarbonate containing BPA, though BPA-free alternatives are increasingly common)
  • Water cooler bottles
  • Plastic CDs and DVDs
  • Eyeglasses
  • Computer cases
  • Car parts
  • Exterior lighting fixtures

Important Considerations:

  • Check Local Recycling Guidelines: Always check with your local recycling program to determine if they accept specific type 7 plastics.
  • Look for BPA-Free Alternatives: If you are concerned about BPA, look for products specifically labeled as "BPA-free."
  • Consider Alternatives: Where possible, consider using products made from more easily recyclable materials like glass, aluminum, or certain types of plastic (like PET or HDPE) that are widely recycled.
  • Understanding Symbols: The #7 plastic symbol may include abbreviations for the specific plastic type within it (e.g., "OTHER," "PC" for polycarbonate, or "PLA" for polylactic acid, a bioplastic).

In summary, type 7 plastic is a mixed bag, requiring careful consideration of its specific composition and recyclability before disposal.

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