Fillers: Plastics & Films

Fillers: Plastics & FilmsWith a range of particle sizes and grades, ultrafine perlite microspheres offer advantages as a filler for plastics and films, including:

  • Weight reduction
  • Shrink and/or crack resistance
  • Low volume-based cost compared to binders and some other fillers
  • Whiteness
  • Impact resistance
  • Machinability and ease of sanding
  • Nail and screw holding ability
  • Flexural strength modification
  • Gloss and sheen control
  • Pigment extension
  • Inertness and non-toxicity
  • Water and/or air permeability
  • Fire resistance
  • Insulation
  • Modification of acoustic properties

Perlite ultrafine fillers have been used in a number applications for many years, including:

  • Silicone rubber
  • Synthetic rubbers
  • Natural rubbers
  • Thermoplastic resins
  • Decorative home and garden fixtures
  • Thermosetting resins
  • Paint
  • Coatings
  • Polishes
  • Cleansers


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