plastics

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Across
  1. 3. Oil sources can be this, causing plastic price changes.
  2. 6. Main raw material plastics are made from.
  3. 7. Plastic can be shaped easily – we say it’s this beginning with M.
  4. 9. Plastics can be moulded into these types of shapes.
  5. 10. Machine used to heat and bend acrylic.
  6. 13. Expanded polystyrene is suitable for this.
  7. 19. Protects police against riots made from tough polypropylene.
  8. 22. Thermoset plastic used in electric socket bodies.
  9. 23. Plastic (or anything) that you can't see through is called this.
  10. 25. Forming method needing a draft angle for release.
  11. 27. Polypropylene is used in the seat part of this school item.
  12. 29. Plastics don’t need surface finishes to resist this.
  13. 31. Thermoplastic used in vacuum forming.
  14. 33. Plastic used in chairs and impact-resistant items.
  15. 34. Rigid form plastics can be bought in.
  16. 35. Great plastic garbage patch in which ocean
Down
  1. 1. Sloped side in a mould to prevent sticking.
  2. 2. Cutting plastics this way can make a wide variety of shapes from a computer file
  3. 4. Vinyl is sold in this easy-to-use form.
  4. 5. One advantage of plastics – they come in many of these.
  5. 8. Process where plastics are shaped using heat and pressure.
  6. 11. Acrylic is brittle – it may do this if drilled.
  7. 12. Plastics are this, so they can store food without leaking.
  8. 14. Small plastic pieces used in injection moulding.
  9. 15. Plastic type that can be reheated and reshaped.
  10. 16. Plastic pollution can harm these sea creatures.
  11. 17. Expanded plastic foam used for packaging fragile items.
  12. 18. Plastic that once set, cannot be remoulded.
  13. 20. Moulding method using granules melted and forced into a mould.
  14. 21. System needed to remove toxic fumes from cutting plastic.
  15. 24. Plastics can be clear like glass – this word describes that.
  16. 26. Another name for plastics.
  17. 28. Thermoplastic used in laser cutters but brittle when drilled.
  18. 30. Semi-transparent plastic used for stylish effects.
  19. 32. Thermoplastics can be reshaped, helping with this process.