HMEL PP Polysure M50NR

Polysure M50NR is a high-flow nucleated polypropylene homopolymer manufactured by HPCL-Mittal Energy Ltd (HMEL) via Spheripol-II technology at Bathinda. Engineered for ultra-high-speed thin wall injection molding (TWIM), M50NR delivers rapid mold filling, exceptionally fast cycle times (4–8 seconds), and energy-efficient production. With a melt flow index of 50 g/10 min, M50NR is optimized for 128+ cavity molds producing yogurt cups, dairy containers, and food service trays at maximum throughput. Nucleating agents ensure small spherulite formation for excellent surface finish and minimal warpage. Fully compliant with IS 10910 (food contact), IS 16738:2018, and FDA 21 CFR 177.1520, M50NR is the preferred choice for Delhi NCR’s high-volume dairy packaging and food service manufacturers seeking production speed without compromising quality.

Deep Technical Insights & Specifications

M50NR delivers a melt flow index of 50 g/10 min (ASTM D1238), flexural modulus of 1500 MPa (ASTM D790A), tensile strength of 32 MPa, Vicat softening point of 150°C, HDT of 105°C, and notched Izod impact of 32 J/m. The high MFI enables rapid mold filling for ultra-thin walls (0.4–0.8 mm), while nucleated crystallization ensures fast cooling (4–8 seconds) and glossy finish. Processing parameters include a barrel temperature of 180–230°C, mold temperature of 30–40°C, very high injection speed for ultra-thin wall rapid fill, and back pressure of 10–20 bar. The result is industry-leading cycle times (8–15 seconds total), reduced specific energy consumption, and consistent part quality across 128+ cavity production runs.

Applications & Industry Use Cases

For yogurt and dairy container production, M50NR excels in high-speed, multi-cavity molding of 500ml yogurt pots, 150–300g dairy takeaway containers, and stackable food service trays. The 50 MFI flow enables rapid mold filling for ultra-thin walls (0.6–0.8 mm), while nucleated crystallization delivers a glossy, premium finish that enhances shelf appeal. Cycle times of 8–15 seconds support high-volume production economics, enabling manufacturers to maximize output per machine per shift. In food service and retail packaging, M50NR’s fast cycles and food-contact compliance make it ideal for disposable takeaway containers, meal prep trays, and stackable packaging that requires both speed and structural integrity. The nucleated design minimizes warpage, ensuring consistent stacking and shape retention from production through retail display. For high-speed consumer packaging applications, M50NR supports rapid production of lightweight, stackable products where energy efficiency and throughput are critical success factors.

Alternatives & Comparative Analysis

M50NR and M50NR1 are process variants with identical technical specifications, both delivering 50 MFI flow and 1500 MPa stiffness for ultra-high-speed TWIM. Compared to HMEL’s M18NH1, M50NR offers 2.8× higher flow (50 vs 18 MFI), enabling faster cycles (4–8 sec vs 6–10 sec) but with slightly lower stiffness (1500 vs 1700 MPa). Choose M50NR for maximum throughput in ultra-thin applications; select M18NH1 when structural rigidity is prioritized. HMEL’s M65NR1 is an even higher-flow grade (65 MFI) for extreme-speed applications but sacrifices additional stiffness. IOCL Propel P1200MG, with 20 MFI and 1700 MPa stiffness, is optimized for balance between flow and strength, making it suitable for general TWIM but not for ultra-high-speed 128+ cavity production. M50NR stands out as the speed specialist, filling the gap for manufacturers requiring maximum production throughput with nucleated finish quality.

Please note: M50NR has been superseded by M50NR1 – superior alternative with improved performance metrics and cost efficiency. Explore full specifications, applications, and advantages to see how it delivers better value for your manufacturing needs.