Choosing the wrong plastic material can lead to premature failure, regulatory issues, or unnecessary cost. With hundreds of resin grades available, how do you make the right choice? At MEITU, we guide customers through material selection based on three key factors: mechanical requirements, environmental exposure, and regulatory compliance.
Start With Your Application
Ask yourself: What will the part do? Does it need to be strong? Flexible? Transparent? Flame‑retardant? Food‑contact safe?
Here’s a quick reference for common engineering plastics:
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Material
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Key Properties
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Typical Applications
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ABS
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Impact-resistant, good surface finish, paintable
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Enclosures, automotive trim, toys
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Polypropylene (PP)
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Chemical-resistant, flexible, living hinge capable
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Food containers, bottle caps, automotive batteries
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Polycarbonate (PC)
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Transparent, high impact strength, heat-resistant
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Lenses, medical devices, electrical covers
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Nylon (PA6, PA66)
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Strong, wear-resistant, absorbs moisture
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Gears, bushings, under-hood components
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POM (Acetal)
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Low friction, excellent dimensional stability
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Gears, valve stems, zipper parts
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PEEK
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High temperature (up to 260°C), chemical resistant
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Aerospace, medical implants, oil & gas
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Silicone (LSR)
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Soft, biocompatible, heat-resistant
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Seals, baby products, medical tubing
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Consider Environmental Factors
Will the part be used outdoors? Add UV stabilizers or choose inherently UV‑resistant materials like ASA. Will it be exposed to chemicals? Nylon resists oils but not strong acids; polypropylene handles many acids well. High temperatures? PC and PEEK are good choices; standard ABS may soften above 80°C.
Regulatory Requirements
If your product contacts food, choose FDA‑approved grades (often PP or PC). For electronics, UL94 V‑0 flame‑retardant materials are required. For medical devices, biocompatible grades with ISO 10993 certification are necessary.
How MEITU Helps
We maintain a library of datasheets for over 100 resin grades. Our engineers perform mold flow analysis to predict how a material will behave in your part geometry. And we can source specialty materials — including recycled content and bio‑based plastics — to meet your sustainability goals.
Need Expert Advice?
Send us your part drawing and performance requirements. We’ll recommend the most cost‑effective, compliant material and provide a sample for testing. Good material selection upfront saves thousands in rework later.