PP Impact Copolymer for Automotive & Large Molded Parts
A high-impact polypropylene copolymer from leading Chinese mills, EP300H delivers an outstanding balance of rigidity and toughness — with superior low-temperature impact performance. The go-to grade for automotive interiors, appliance housings, large returnable crates, and luggage where parts must survive drops, knocks, and cold-chain handling.
Impact copolymers add a rubber-phase to PP to absorb energy. EP300H is tuned for the balance large and load-bearing parts need.
The ethylene-propylene rubber phase absorbs impact energy, preventing brittle failure in drop tests and in-service knocks — essential for automotive and material-handling parts.
Maintains useful flexural modulus while gaining impact strength — parts stay dimensionally stable under load without sacrificing durability.
Retains impact performance at sub-zero temperatures — critical for parts exposed to cold-chain logistics, outdoor use, and winter climates.
Typical property values for guidance. Certified lot-specific COA provided with every shipment.
| Property | Test Method | Unit | Typical Value |
|---|---|---|---|
| Melt Flow Rate | ASTM D1238 | g/10min | 3 – 5 |
| Density | ASTM D1505 | g/cm³ | 0.900 |
| Tensile Strength (Yield) | ASTM D638 | MPa | 27 |
| Elongation at Break | ASTM D638 | % | 200 |
| Flexural Modulus | ASTM D790 | MPa | 1200 |
| Notched Izod Impact (23°C) | ASTM D256 | kJ/m² | 12 |
| Rockwell Hardness | ASTM D785 | R scale | 85 |
| Vicat Softening Temperature | ASTM D1525 | °C | 150 |
| Heat Deflection Temperature (0.45 MPa) | ASTM D648 | °C | 100 |
Test condition: 230°C / 2.16 kg for MFR. Values are typical and not intended as specification limits.
EP300H is the grade of choice for large, load-bearing, and impact-critical molded parts — where a homopolymer would crack and a high-flow grade would lack toughness.
Door trims, instrument panels, pillar trims, and console components requiring impact durability and dimensional stability.
Washing machine tubs, refrigerator liners, air conditioner housings, and vacuum cleaner bodies.
Heavy-duty distribution crates, beverage trays, and industrial totes that must survive repeated handling and stacking.
Suitcase shells, tool cases, and protective equipment cases requiring impact and crack resistance.
Municipal and industrial waste bins, recycling containers, and material-handling bins exposed to impact and weather.
Garden furniture, planters, and outdoor storage items requiring UV-stabilized impact performance.
EP300H processes well on standard injection molding equipment. The moderate MFR suits large-part molding where screw plasticization and clamp force matter more than fill speed.
| Melt Temperature | 190 – 230 °C |
| Mold Temperature | 30 – 60 °C |
| Injection Pressure | 70 – 110 MPa |
| Screw Speed | 40 – 70 rpm |
| Drying (if needed) | 70 °C / 1–2 h |
Standard mill packaging protects resin integrity through ocean and inland transit to your destination port.
25 kg woven PP bag with inner PE liner. 1,000 kg (1 MT) per pallet, stretch-wrapped.
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 application. We'll respond within 24 hours with mill-direct pricing and current availability from our mill partners.