Reliance PPCP Repol C320MN
Reliance Repol C320MN is a nucleated polypropylene impact copolymer (PPCP) engineered for high-flow, medium-impact injection moulding applications. Produced using advanced Unipol PP technology, C320MN combines a melt flow index of 32 g/10 min with balanced stiffness and impact, making it ideal for thin-walled, grilled, and complex moulded part. The nucleating agent enhances crystallisation and dimensional stability, resulting in faster cycle times, reduced warpage, and reliable part quality. Supplied as natural granules in 25 kg bags, C320MN is fully compliant with IS 10910 for food, pharma, and drinking water contact, as well as IS 16738:2018 and FDA CFR 21 177.1520.
Functional Features
Repol C320MN stands out for its high-flow processability, nucleated structure, and robust mechanical properties. The grade’s medium impact and flexural modulus support structural integrity in appliance, automotive, and compounding applications. Its nucleation technology ensures shorter cycles and improved dimensional accuracy, while food-contact compliance expands its use in regulated markets.
Detailed Technical Specifications (Typical Values)
- Melt Flow Rate: 32 g/10 min (ASTM D1238, 230°C/2.16 kg)
- Density:90 g/cc (ASTM D792)
- Tensile Strength at Yield: 20 MPa (ASTM D638, 50 mm/min)
- Elongation at Yield: 5% (ASTM D638)
- Flexural Modulus: 1150 MPa (ASTM D790A)
- Notched Izod Impact (23°C): 150 J/m (ASTM D256)
- Heat Deflection Temp (455 kPa): 92°C (ASTM D648)
- Hardness: Shore D 68 (ASTM D2240)
Processing Guidelines:
Recommended melt temperature: 210–260°C; mould: 20–60°C. Adjust parameters for part geometry and machine capability.
Applications and Industry Use Cases
Appliances
Repol C320MN is widely used for appliance parts such as washer covers, AC grills, and internal brackets, where high flow and nucleated stability enable precise, defect-free moulding of thin-walled and grilled components. Its medium impact and thermal stability support everyday use and moderate heat exposure.
Automotive
Automotive compounders and OEMs use C320MN for interior components, compounds, and non-structural parts requiring a balance of stiffness and impact. The grade’s processability supports complex designs and efficient mass production.
Grilled/Thin-Walled Products
The high flow and nucleation of C320MN make it ideal for fan guards, vents, and thin-walled housings, where rapid mould filling and low warpage are critical for performance and assembly.
Compounding
C320MN is an excellent base resin for masterbatch and mineral-filled PPCP compounds, supporting dispersion and batch consistency in colour and performance.
Performance Advantages
Compared to non-nucleated or lower-MFI PPCP grades, Repol C320MN offers faster cycle times, better dimensional control, and superior thin-wall filling. Its nucleation technology minimizes warpage and shrinkage, making it a preferred choice for complex, high-output moulding environments. C320MN is competitive with HMEL CM40NR (40 MFI) and IOCL 3650MN (65 MFI) in applications where flow and dimensional stability are prioritized over extreme impact.
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Frequently Asked Questions
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