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POLYMER TYPES

Polystyrene (PS): Types and Applications

Preferred in applications requiring rigidity and easy processing, polystyrene is produced in two main groups: GPPS and HIPS. Review the technical properties to choose the right PS type for your application.

Explore PS Prices →Explore PS Grades
GPPSHIPSTurkey & Global
Polystyrene granules, GPPS and HIPS types

PS PRODUCT GROUPS

Polystyrene Types by Application

The difference between polystyrene types comes from rubber additive content, which determines the balance between clarity and impact strength.

GPPS

General-purpose polystyrene offers high clarity, hardness and dimensional stability, but its impact strength is low.

  • Transparent packaging
  • Disposable products
  • Electronic component boxes

HIPS

Polystyrene with improved impact strength through rubber additive; it is opaque and more durable.

  • Appliance interior parts
  • Toy production
  • Food packaging containers

Special Grades

PS grades developed with special additives such as UV stabilization, flame retardancy or high flowability.

  • Outdoor applications
  • Electronic injection molded parts
  • High-speed production lines

TECHNICAL PROPERTIES

Key Properties of Polystyrene

PS type selection should be based on clarity needs, impact strength requirements and process conditions.

01

Clarity

GPPS grades offer high light transmission, which is why they are preferred in visual packaging applications.

02

Rigidity

High hardness and dimensional stability are an advantage in parts that need precise dimensions.

03

Easy Processing

Low melting temperature and flowability allow fast injection cycles.

04

Dimensional Stability

Thanks to its low shrinkage rate, it is preferred in parts with precise tolerances.

APPLICATIONS

Where Is Polystyrene Used?

PS finds wide use in different sectors depending on the balance between clarity and durability.

  • Food and consumer packaging
  • Appliance interior parts
  • Toys and consumer products
  • Electronic device housings
  • Disposable products
Choosing the Right PS Type

When choosing the PS type for your application, consider clarity needs, impact strength requirements and production process together. Contact our team for suitable products and sourcing options.

FREQUENTLY ASKED QUESTIONS

About Polystyrene

What is the difference between GPPS and HIPS?

GPPS has a clear and hard structure, while HIPS offers an opaque but more impact-resistant structure thanks to rubber modification.

When does polystyrene become brittle?

GPPS in particular can be brittle under sudden, heavy loads because of its low impact strength; HIPS may be preferred in these cases.

Is PS suitable for food contact?

PS products with suitable grade and regulatory approval can be used in food packaging; check the compliance certificate before selecting.

Do PS prices vary by type?

Yes. GPPS and HIPS prices can differ by additive content, producer and market conditions.

PS SOURCING SOLUTIONS

Let’s find the right polystyrene type for your needs together.

Share your application, clarity and strength requirements; we’ll review suitable sourcing options for your GPPS or HIPS requirement.

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