PP Homopolymer for Extrusion
This high‑performance homopolymer polypropylene raffia‑grade resin is engineered for flat‑yarn extrusion and fiber forming processes. Featuring a melt‑flow rate of 3.0‑3.4, HP550J delivers outstanding tensile strength, superior anti‑breakage performance of filaments and consistent processing adaptability. It serves as an ideal resin for a wide range of end‑products with stringent requirements on tensile mechanical properties, such as heavy‑duty woven packaging, agricultural & forestry rope‑nets and carpet backing.
Typical property values for guidance. Certified lot-specific COA provided with every shipment.
| Property | Test Method | Unit | Typical Value |
|---|---|---|---|
| Vicat Softening Temperature | ASTM D1525 | °C | 155 |
| Density | ASTM D1505 | g/cm³ | 0.905 |
| Tensile Strength (Yield) | ASTM D638 | MPa | 35 |
| Elongation at Break | ASTM D638 | % | 50 |
| Flexural Modulus | ASTM D790 | MPa | 1500 |
| Melt Flow Rate | ASTM D1238 | g/10min | 3.0-3.4 |
| Rockwell Hardness | ASTM D785 | R scale | 100 |
| Notched Izod Impact (23°C) | ASTM D256 | kJ/m² | 3.5 |
| Heat Deflection Temperature (0.45 MPa) | ASTM D648 | °C | 110 |
Test condition: 230°C / 2.16 kg for MFR. Values are typical and not intended as specification limits.
Typical end-use applications for HP550J — confirmed by mill technical data and converter feedback.
grain bags, fertilizer bags, general woven bags, FIBC bulk bags
agricultural binding twines, baling ropes, sun‑shade nets, split‑film twines
carpet backing, flat‑yarn base material for geotextiles, artificial grass base fabric
split films, binding fibers, industrial flat‑yarn articles
HP550J processes on standard equipment. Use the guideline below as a starting point; fine-tune to your specific mold and cycle.
| Screw Speed | 40 – 80 rpm |
| Drying (if needed) | 70 °C / 1–2 h |
| Injection Pressure | 60 – 100 MPa |
| Melt Temperature | 180 – 220 °C |
| Mold Temperature | 20 – 50 °C |
Standard mill packaging protects resin integrity through ocean and inland transit to your destination port.
25kg Bag
1,000 kg bulk bag for high-volume converters seeking reduced packaging waste.
Each shipment includes mill COA, MSDS, packing list, and certificate of origin. Third-party SGS/BV inspection available on request.
Tell us your volume, destination port, and packaging preference. We'll respond within 24 hours with mill-direct pricing and current availability from our mill partners.