HMEL PP Polysure M65NR1

HMEL Polysure M65NR1 is a best-in-class nucleated polypropylene homopolymer specifically engineered for ultra-high flow performance in compounding, masterbatch production, and multi-cavity thin wall injection molding (TWIM). Made using Spheripol-II technology, M65NR1 delivers a remarkable melt flow index (65 g/10 min) with high stiffness (1350 MPa flexural modulus) and fast cooling, setting the benchmark for 256+ cavity molding and high-volume masterbatch compounding. Its narrow molecular weight distribution ensures consistent processing, reduced warpage, and excellent product aesthetics, making it the go-to resin for x NCR’s leading converters and manufacturers.
As a flagship product from HMEL (HPCL-Mittal Energy), M65NR1 is manufactured in ISO-certified facilities and meets all key regulatory standards (IS 10910, IS 16738:2018, FDA CFR 21.177.1520) for food, pharma, and drinking water contact.

M65NR1 Technical Data

 M65NR1 achieves a true 65 MFI (ASTM D1238), enabling ultra-high melt flow for rapid fill in 256+ cavity molds and twin-screw extruders. Flexural modulus is 1350 MPa (ASTM D790A), delivering the right balance of stiffness for thin-wall containers and housewares. Tensile strength at yield is 32 MPa, with 10% elongation at yield (ASTM D638), ensuring both strength and flexibility. Notched Izod impact is 25 J/m (ASTM D256A), giving toughness for handling and transport.
Thermal properties include a Vicat softening point of 150°C and HDT of 100°C, supporting hot-fill and post-molding thermal processing. The nucleated structure accelerates cooling, reduces cycle times, and improves dimensional accuracy versus non-nucleated grades.

Processing

Barrel 180-230°C, Mold 30-40°C. High injection speed and moderate back pressure (40–80 bar) recommended to maximize nucleation benefits and minimize shear degradation.

Applications

Compounding & Masterbatch Base Resin

M65NR1 is the gold standard for color masterbatch and additive compounding. Its 65 MFI yields rapid pigment/additive dispersion, reducing residence time and thermal stress in twin-screw extruders. The nucleated structure remains stable during blending and downstream molding, ensuring consistent performance for converters targeting high-speed TWIM and consumer applications.

Multi-Cavity TWIM (256+ Cavities)

For ultra-thin wall (0.3–0.6 mm) yogurt cups, dairy containers, and food service trays, M65NR1’s ultra-high flow enables complete fill in 2–4 seconds, with cycle times as low as 3–6 seconds. In 256-cavity molds, manufacturers achieve industry-leading throughput, minimal scrap, and uniform part quality. The nucleated structure ensures rapid cooling, low warpage, and a superior surface finish—vital for high-speed, high-volume production in Delhi NCR’s packaging clusters.

Housewares & Consumer Products

M65NR1 is ideal for kitchen storage, appliances, and high-volume consumer goods requiring thin walls and reliable stiffness. The 1350 MPa modulus ensures everyday durability, while the nucleated structure supports flawless aesthetics and dimensional stability. Manufacturers in Noida, Gurgaon, and Manesar rely on M65NR1 for scalable, consistent production of essential consumer items.

Comparative Analysis & Grade Selection
M65NR1 vs M65NR vs CM65NR vs M50NR1

 M65NR1 (65 MFI)

Engineered for ultra-high flow and productivity in extreme-cavity molds (256+), M65NR1 is unmatched for high-speed TWIM and masterbatch compounding. Flexural modulus is slightly lower than M50NR1 but remains ideal for ultra-thin wall and consumer applications.

M65NR (65 MFI)

Identical specs to M65NR1—both are Spheripol-II nucleated, with M65NR1 as the primary commercial designation for injection molding and compounding.

CM65NR (65 MFI Impact Copolymer)

CM65NR is designed for impact-critical applications (automotive, industrial packaging). While flow is similar, CM65NR provides extra toughness at the expense of some stiffness and clarity.

M50NR1 (50 MFI)

Lower flow, higher stiffness (1500 MPa), preferred for 128-cavity molds and stackable containers. Use M65NR1 for maximum speed, M50NR1 for higher rigidity.

Selection Guide: Choose M65NR1 for ultra-high flow, 256+ cavity TWIM, and masterbatch compounding. M50NR1 for higher stiffness and moderate cavities. CM65NR for impact-critical, heavy-duty goods.

Ultra-High Flow Process Guide (M65NR1)

For 256-cavity molds, set injection pressure to 1300–1700 bar, holding pressure to 700–1000 bar. Cooling times drop to 3–6 seconds, with ejection at 90–100°C. Mold temperatures of 30–40°C are optimal for rapid part release and minimal warpage. Energy savings of 15–25% are typical due to reduced cycle times and lower chiller loads.

Please note: M65NR1 has been superseded by M70NR1 – 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.