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Thermoplastic · Styrenic / support

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HIPS

High Impact Polystyrene

Dissolvable support material for ABS printing — and a light, matte structural plastic in its own right.

Print temperatures

Nozzle 230245 °C Bed 90–110 °C

HIPS is cheap, light, rigid styrenic plastic — think disposable cutlery and model kits. Its FDM niche is special: it dissolves in limonene, making it the classic dissolvable support material for ABS.

It can also be printed as a standalone lightweight material with an ABS-like workflow.

Strengths & trade-offs

  • Dissolvable in limonene — great ABS support
  • Lightweight and rigid
  • Cheap
  • Sandable and paintable
  • ABS-compatible print temps
  • Warps — heated bed + enclosure
  • Emits fumes
  • Poor UV resistance
  • Lower strength than ABS
  • Limonene cleanup is slow

Best for

Dissolvable supports for ABS printsLightweight modelsPrototypesLow-cost rigid parts

Did you know

  • HIPS's killer FDM feature is chemical: it dissolves in d-limonene (orange-peel solvent), washing away as support.
  • It's the same plastic as many disposable cups and model kits, just rubber-toughened.