What we offer

  • PST (HIPS)
High-impact polystyrene (HIPS) is a rubbermodified polystyrene that is significantly
harder and more impact-resistant than general purpose polystyrene.

Ampa Plastics also manufactures a modified form of HIPS known as ESCR/HIPS, or environmental stress crack resistant HIPS.
ESCR/ HIPS is less susceptible to environmental stress cracking than HIPS. ESCR/HIPS is extensively used in the refrigeration industry.

Key features of High Impact Polystyrene
  • - Relatively low-cost
  • - Impact-resistant, hard and dimensionally stable (between 10ºC and 30ºC working temperature range)
  • - Medium- or high-gloss finish
  • - Easily machined and thermoformed
  • - Good electrical insulator
  • - Does not absorb much moisture
  • - Can be painted, bonded and/or glued
  • - Not UV resistant (will yellow if exposed to UV light or other weathering factors)
  • - Odourless and tasteless, making it suitable for use with food
  • - Easily recyclable
Applications of High Impact Polystyrene
  • - Appliances (ESCR/HIPS is extensively used in the refrigeration industry)
  • - Packaging (food, electrical equipment)
  • - Indoor signage and advertising
  • - Machining of prototypes
  • - Thermoforming