Introduction

Selecting the right plastic material is crucial for the success of any manufacturing project. This guide provides an overview of common thermoplastics and their applications.

Commodity Plastics

Polypropylene (PP)

PP offers excellent chemical resistance and fatigue strength, making it ideal for living hinges, containers, and automotive components.

Density: 0.89-0.91 g/cm³
Melting point: 130-171°C
Applications: Packaging, automotive trim, medical devices

Polyethylene (PE)

Available in various densities (LDPE, LLDPE, HDPE), PE provides good impact strength and moisture resistance.

Density: 0.91-0.97 g/cm³
Excellent chemical resistance
Applications: Bottles, pipes, geomembranes

Engineering Plastics

ABS (Acrylonitrile Butadiene Styrene)

ABS combines strength, toughness, and surface finish, making it popular for consumer products and automotive interiors.

Good impact resistance at low temperatures
Easy to paint and bond
Applications: Electronics housings, automotive trim, toys

Polycarbonate (PC)

PC offers exceptional impact strength and optical clarity, suitable for safety glasses and protective equipment.

High heat resistance (up to 135°C)
Excellent transparency
Applications: Safety equipment, medical devices, lighting

Nylon (PA)

Polyamides provide excellent wear resistance and mechanical properties, ideal for gears and bearings.

High strength-to-weight ratio
Good chemical resistance
Applications: Gears, bearings, automotive under-hood

Material Selection Criteria

When selecting materials, consider:

Mechanical requirements (strength, stiffness, impact)
Environmental exposure (UV, chemicals, temperature)
Regulatory compliance (FDA, UL, RoHS)
Cost and availability
Processing characteristics

Conclusion

Our engineering team can help you select the optimal material for your specific application, balancing performance requirements with cost considerations.