HIPS - High Impact Polystyrene

Outstanding screen printing and thermoforming properties

High Impact Polystyrene (HIPS) is a polystyrene sheet with added impact resistance. It is one of the most tolerant materials available for thermoforming applications, possessing a wide heat forming temperature window. It is versatile, lightweight and inexpensive.

HIPS can be easily screen or UV digitally printed and is widely used for displays either in two or three dimensional parts. Due to its ease of thermoforming and heat bending, HIPS is often used for internal displays.

We would not recommend HIPS for external applications.

Dependent on thickness, HIPS can be cut by hand, guillotined or sawn with jigsaws, circular saws and flatbed saws.

Gluing can be achieved and we would recommend you discuss the most compatible adhesive with your local Amari sales office.

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HIPS in our webshop

Unique features

  • Good impact resistance
  • Rubber additives can be added to improve durability
  • Inexpensive
  • Moisture absorption is usually not a problem and pre-drying is rarely required
  • Suitable for single or two-sided applications
  • Tough, rigid, easy to fabricate and mould
  • Good printing quality, consistent and easily printed matte surface


  • Internal signs
  • Point of sale
  • Display material
  • Printed graphics
  • Food contact applications
  • Shop fitting
  • Model making
  • Vacuum forming

Our HIPS types

  • Gloss
  • Leathergrain 
  • Matte 
  • Mirror
  • Pinseal

Machining options

  • Drilling
  • Sawing/milling
  • Lettering
  • Warm bending
  • Gluing
  • Thermoforming
  • Digital printing
  • Screen printing
  • Cutting/punching
  • Lasering
  • Press offset
  • Yes
  • Not in all cases
  • No

Technical information

General Definition Norm Unit Value
General Density ISO 1183 g/cm³ 1.06
Mechanical Tensile strength at yield ISO 527-2/50 MPa 22
" Tensile E Modulus ISO 527-2 kJ/m2 1750
" Elongation at break ISO 527-2 % 4
" Charpy impact notched ISO 179/1eA kJ/m2 10
" Charpy impact unnotched ISO 179/1eU kJ/m2 13
Optical Gloss/Matt level at 60° ISO 2813 Units >90
Thermal Heat deflection temperature ISO 75-2/A °C 87
" Vicat softening point ISO 306/B50 °C 90
Others Flammability UL94 Rating HB
" Mould shrinkage ISO 294-4 % 0.4 - 0.7


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