Polystyrene (PS) Injection Molding
When we think of polystyrene, many of us automatically think of the white material more commonly used in packaging and insulation. There are two specific types of polystyrene, known as high-impact polystyrene and general purpose polystyrene. High-impact polystyrene is more commonly used with injection moulding and has the following characteristics:
- Easy to machine/fabricate
- Good insulator
- Easily processed
- Able to paint and glue
- Relatively low cost
- Extremely sturdy
- Durable with strong impact resistance
While high-impact polystyrene is used across a range of different sectors, it is commonly used for the injection moulding of electronic and medical applications. These include:
- Petri dishes
- Waste canisters
- TV housings
- Computer housings
- Toolboxes
- Freezer/refrigeration appliance housings
You only need to look at your toolbox to see how sturdy, compact and durable it is. This is likely to be made of high-impact polystyrene, using the injection moulding process.
Polystyrene (PS) Mould Making Service
Be good at product structure optimization and greatly reduce the cost of mold making injection molding

Mould Design
Appearance and structural design

Mold Making
Design, DFM confirmation

Product Production
Imported, high-speed equipment

Product Assembly
Incoming materials, inspection and assembly
The Ins and Outs of Polystyrene PS Injection Molding Materials: Properties, Applications, and Benefits
Polystyrene (PS) is a widely used thermoplastic polymer that is often chosen for injection molding due to its desirable properties. PS injection molding materials are lightweight, durable, and can be easily customized to meet specific requirements. In this article, we will delve into the properties, applications, and benefits of PS injection molding materials.
Properties of PS Injection Molding Materials
PS is a polymer made from styrene monomers. It is a highly versatile material that exhibits the following properties:
-
Lightweight: PS is a lightweight material, making it an ideal choice for applications where weight is a concern.
-
High impact resistance: PS is known for its high impact resistance, meaning it can withstand heavy impact without cracking or breaking.
-
Good dimensional stability: PS has good dimensional stability, meaning it can maintain its shape and size even when exposed to high temperatures or humidity.
-
Good electrical insulation: PS is an excellent electrical insulator, making it suitable for electrical applications.
Applications of PS Injection Molding Materials
PS injection molding materials are used in various industries, including packaging, consumer goods, and electronics. Here are some of the most common applications of PS:
-
Packaging: PS is widely used for packaging applications such as disposable cups, trays, and food containers.
-
Consumer goods: PS is used to make a variety of consumer goods, including toys, appliances, and kitchenware.
-
Electronics: PS is used in the electronics industry to make computer cases, printer cartridges, and other electronic components.
Benefits of PS Injection Molding Materials
PS injection molding materials offer several benefits, including:
-
Customizable: PS can be easily customized to meet specific requirements, including color, texture, and hardness.
-
Cost-effective: PS is a cost-effective material, making it an economical choice for manufacturing.
-
Recyclable: PS is a recyclable material, making it an environmentally friendly choice for manufacturing.
-
Versatile: PS injection molding materials can be used for various applications, making it a highly versatile material.
Conclusion PS Injection Molding Materials
PS injection molding materials are a popular choice for various applications due to their lightweight, high impact resistance, and good dimensional stability. They are widely used in the packaging, consumer goods, and electronics industries. PS injection molding materials offer several benefits, including customization, cost-effectiveness, recyclability, and versatility. If you are considering PS for your injection molding needs, consult with a reputable manufacturer to ensure that you get the right material for your application.