Injection Molding Materials for Custom Plastic Parts
Yuming Molding supports ABS, PP, PC, PA, POM, TPU, TPE, PMMA, PBT and PC/ABS materials for custom injection molded parts. We help review material choice based on function, appearance, strength, production volume and application environment.
Choose Resin Based on the Part Function, Not Only the Price
For overseas projects, material selection should consider impact strength, rigidity, temperature, surface finish, chemical exposure, shrinkage and assembly requirements. We can review your drawing and recommend practical options before mold manufacturing.
Appearance Parts
For housings, covers, control panels and visible components, we review surface finish, color, texture, weld line risk and scratch resistance.
Functional Parts
For clips, gears, brackets, holders and moving parts, we focus on strength, wear resistance, stiffness, creep and dimensional stability.
Flexible or Sealing Parts
For soft-touch parts, seals, pads and flexible components, we review hardness, elasticity, bonding, deformation and surface feel.
Typical Plastic Materials and Review Points
The table below gives a practical starting point. Final resin choice should be confirmed after reviewing drawings, tolerances, product function and production requirements.
| Material | Typical Applications | Key Review Points | Common Industries |
|---|---|---|---|
| ABS | Housings, covers, consumer and industrial parts | Impact strength, appearance, texture and color matching | Electronics, appliances, consumer products |
| PP | Lightweight parts, covers, containers and hinges | Chemical resistance, flexibility, shrinkage and warpage control | Automotive, household products, packaging-related parts |
| PC / PC-ABS | Stronger housings, transparent parts and electronic components | Impact stability, heat resistance, dimensional stability and appearance | Electronics, medical devices, industrial equipment |
| PA / POM | Functional and wear-resistant components | Strength, stiffness, moisture effect, wear resistance and tolerances | Automotive, industrial assemblies, mechanical parts |
| TPU / TPE | Soft-touch parts, flexible parts and sealing components | Hardness, bonding, deformation, elasticity and surface feel | Consumer products, medical parts, handles and seals |
| PMMA / PBT | Transparent or electrical-related components | Optical clarity, heat resistance, electrical properties and surface defects | Lighting, electronics, appliance and industrial parts |
Material Choice Affects Mold Design and Production Stability
Different materials behave differently during injection molding. Shrinkage, flow, cooling, surface finish and warpage must be considered before steel cutting.
- Shrinkage rate affects cavity size and dimensional prediction
- Glass-filled materials require careful gate, flow and wear review
- Transparent materials need stricter surface and flow control
- Flexible materials require attention to ejection, deformation and bonding
Material Recommendations by Product Requirement
When you are not sure which resin is suitable, describe the application environment and product function. We will help narrow the options.
Need better appearance?
ABS, PC/ABS and PMMA may be considered depending on gloss, texture, color and surface requirements.
Need strength or wear resistance?
PA, POM, PBT or glass-filled grades may be reviewed for brackets, gears, holders and functional parts.
Need chemical resistance?
PP, PE or selected engineering plastics may be reviewed based on the chemical environment and part function.
Need heat resistance?
PC, PBT, PA or reinforced materials may be considered depending on operating temperature and load.
Need soft touch or sealing?
TPU and TPE options can be reviewed according to hardness, deformation, bonding and long-term use.
Need lower part cost?
We can compare material price, cycle time, mold complexity and expected production volume before quotation.
Material and Production Inspection
For repeat production, material confirmation and process stability are important. We can discuss batch records, material certificates, first article inspection and packaging requirements according to the project.
- Incoming material and color confirmation
- First article inspection after mold trial or production setup
- Dimensional and appearance checks during production
- Packaging inspection before export shipment
Plastic Material FAQ
Can you recommend a material if we only have a sample or drawing?
Yes. We can review the application, part function, surface requirement and estimated production volume, then suggest resin options for discussion.
Can you process customer-specified resin brands?
Yes, customer-specified material grades can be discussed if the resin is available and suitable for the injection molding process.
Can you help compare material cost and performance?
Yes. We can compare practical material options based on part function, expected production volume, mold risk and target cost.
Do material choices affect lead time?
Yes. Standard materials are usually easier to arrange. Special grades, color matching or certified materials may require additional purchasing and confirmation time.
Not sure which plastic material to use?
Send your application, drawings, target quantity and material requirements. We can discuss resin options during the quotation process.
Talk to Yuming Molding
Send drawings or project details.
For molds, samples or plastic parts production, contact our team directly.
- WhatsApp+86 152 1722 5027
- Emailrfq@yumingmolding.com
- Phone+86 152 1722 5027