Polypropylene Injection Molding Services
High-quality polypropylene (PP) plastic injection molding services for durable, transparent components. Custom solutions for precision and fast turnaround.
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Certifications
ISO 9001:2015 | ISO 13485：2016 | IATF16949
Our polypropylene injection molding services provide a cost-effective and versatile solution for manufacturing high-quality parts. Polypropylene is known for its excellent chemical resistance, lightweight nature, and durability.
We specialize in custom molding for industries such as packaging, medical devices, and consumer goods, offering:
- Precision molding for intricate designs.
- Superior surface finish for a polished, professional appearance.
- High clarity and impact resistance.
- Flexible production options from prototypes to high-volume manufacturing.
Injection Molding Capability in Polypropylene
State-of-the-art equipment ensures tight tolerances, high repeatability, and superior surface finishes. Specialized in various grades of PP, including homopolymer, copolymer, and reinforced types, to suit specific application needs.
| Standards | Detail |
|---|---|
|
Part to Part Repeatability |
+/- 0.005 mm |
|
Maximum Part Size |
1200×1000×300mm |
|
Wall Thickness |
0.5 mm |
|
Standard Lead Time |
15 business days or less |
|
Price |
$ $ $ |
|
Available PP at BOYI |
PPH, PPC, PP-Talc 30%, PP GF 30%, PP- Carbon Black-UV |
Polypropylene Material Properties
PP available in clear grades for specific applications. Environmentally friendly and widely recyclable. Supports smooth and textured finishes. The following Outlines the characteristics of different grades of PP under injection molding:
| Properties | PPH | PPC | PP-Talc 30% | PP GF 30% | PP- Carbon Black-UV |
|---|---|---|---|---|---|
|
Density |
0.932 g/cm³ |
0.952 g/cm³ |
1.13 g/cm³ |
1.14 g/cm³ |
1.04 g/cm³ |
|
Linear Mold Shrinkage Rate |
0.0133 cm/cm |
0.0128 cm/cm |
0.0111 cm/cm |
0.00387 cm/cm |
0.0132 cm/cm |
|
Rockwell Hardness (R) |
94.7 |
86.5 |
77.6 |
101 |
90.1 |
|
Tensile Strength at Yield |
32.8 MPa |
25.8 MPa |
25.4 MPa |
77.8 MPa |
26.7 MPa |
|
Elongation at break |
159 % |
231 % |
23 % |
4.01 % |
20.3 % |
|
Flexural Modulus |
1.44 GPa |
1.39 GPa |
2.6 GPa |
5.42 GPa |
1.92 GPa |
|
Flexural Yield Strength |
44.1 MPa |
87.4 MPa |
45.5 MPa |
118 MPa |
35.6 MPa |
|
Drying Temperature |
82.8 ℃ |
77.7 ℃ |
76.4 ℃ |
85.4 ℃ |
95 ℃ |
|
Melt Temperature |
214 ℃ |
215 ℃ |
223 ℃ |
157 ℃ |
223 ℃ |
|
Mold Temperature |
41.3 ℃ |
42.9 ℃ |
49.7 ℃ |
53.1 ℃ |
53.9 ℃ |
What is Polypropylene?
Polypropylene is made from the polymerization of propylene monomers, resulting in a lightweight yet durable material. Polypropylene is valued for its excellent combination of properties, including durability, cost-efficiency, and recyclability.
Polypropylene injection molding involves heating polypropylene pellets to a molten state, injecting them into a mold under pressure, and allowing them to cool and solidify into the desired shape. Afterward, the part is ejected, and additional processing may be done if needed.
Applications of Polypropylene Injection Molding
Polypropylene injection molding is used in various industries for a wide range of applications, including:
- Automotive: Bumpers, dashboards, interior components
- Packaging: Bottles, containers, food packaging
- Medical Devices: Syringes, vials, medical containers
- Consumer Goods: Toys, household appliances, furniture
- Textiles and Non-Wovens: Carpets, wipes, fabrics
Key Benefits of Polypropylene
The key benefits of Polypropylene (PP) include:
- Reduces weight in products.
- Excellent impact resistance.
- Resists acids, bases, and solvents.
- Affordable for high-volume production.
- Can withstand moderate temperatures.
- Environmentally friendly.
- Offers a balance of rigidity and flexibility.
- Safe for food contact applications.
