Polymer Finishes

• What are the 3 main polymer finishes

  Adding colour(pigment particles)

  Acrylic spray paint

  Overmouldings
• What does acrylic spray paint do for the polymer as a finish 

  Enhance aesthetics

  Improve product funtion (e.gwater resistant)
• What are overmouldings


  Moulding a second polymer over specific parts of the product
• What polymer is typically used for overmouldings

  TPE (e.g toothbrush grip)
• What are overmouldings used for

  To provide areas of grip/texture

  To highlight different colours for different components

  (e.g toothbrush grip)
• What are the two methods of overmoulding a product 

  Using two injection moulding moulds

  Twin shot injection moulding