Plastic Material Guide

Common Injection Molding Plastics and Their Manufacturing Trade-Offs

Use this guide to compare common resin families by performance, application and molding risk. Exact grades still require project-specific review.

Color plastic resin pellets
ABS

Balanced Housing Material

Good appearance, impact and processability for enclosures and consumer products.

Typical uses
Housings, covers, knobs, appliance parts
Review
Heat, UV, chemicals, flame grade and texture
PP

Lightweight & Chemical Resistant

Low-density resin used for containers, hinges and selected functional components.

Typical uses
Living hinges, packaging, tanks, covers
Review
Shrinkage, stiffness, bonding and warpage
PC / PC-ABS

Impact & Heat Performance

Tough resin direction for electronics, equipment and transparent or flame-rated parts.

Typical uses
Enclosures, guards, lenses, structural housings
Review
Drying, stress, chemical exposure and grade
PA / Nylon

Mechanical Strength

Engineering resin used for wear, load and structural performance.

Typical uses
Brackets, gears, connectors, under-hood parts
Review
Moisture, glass fiber, warp and mold wear
POM

Low Friction & Precision

Common for gears, sliders, clips and moving mechanical parts.

Typical uses
Gears, valves, clips, precision fittings
Review
Shrinkage, gate, weld strength and grade
TPU / TPE

Flexible & Soft Touch

Elastic resin families for grips, seals, wear parts and overmolding.

Typical uses
Seals, grips, bumpers, flexible covers
Review
Hardness, bonding, ejection and shut-offs
PBT / PET

Electrical & Dimensional Applications

Often considered for connectors and components requiring stability and heat resistance.

Typical uses
Connectors, electrical housings, precision parts
Review
Drying, glass fiber, warp and surface
PPSU

Heat & Sterilization

High-performance resin for demanding healthcare and fluid-handling applications.

Typical uses
Medical accessories, fluid components, high-heat parts
Review
Drying, mold temperature, grade and validation
PEEK / PEI

High-Performance Engineering

Specialty resins for heat, chemicals, strength and demanding service environments.

Typical uses
Aerospace, medical, electrical, industrial parts
Review
Process temperature, tooling, cost and grade approval
Material RFQ Checklist

Information that helps compare grades

Operating temperature
Mechanical load and impact
Chemical or UV exposure
Flame or regulatory requirement
Color and surface expectation
Annual volume and cost target
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