MRPL PP Mangpol HM065AT

MRPL PP Mangpol HM065AT is a polypropylene homopolymer injection moulding grade developed by Mangalore Refinery and Petrochemicals Limited using solvent-free Novolen gas phase technology. Designed for processors that need very high flow, fast filling, and stable part formation, HM065AT is widely suited for thin wall injection moulding, multi cavity moulding, compounding, and masterbatch applications.

Mangpol HM065AT is positioned in MRPL’s high-flow injection moulding portfolio as an ultra-high flow grade for demanding moulding environments. Compared with standard injection grades, it is engineered to deliver faster cavity filling, shorter cycle times, and better dimensional consistency in thin wall and complex moulded parts. MRPL’s Novolen gas phase process supports low gel content, smooth processing, and dependable lot-to-lot quality, making HM065AT relevant for high-output converters that prioritize productivity and repeatability.

Technical Insights

MRPL HM065AT typically offers a melt flow index of 65 g/10 min at 230°C/2.16 kg, which places it in the ultra-high flow category for polypropylene homopolymer injection grades. Typical physical and mechanical values include density of 0.90 g/cm³, tensile strength at yield around 35 MPa, tensile elongation at yield around 8%, flexural modulus near 1400 MPa, and Izod impact strength around 28 J/m. Thermal properties include a Vicat softening point of 150°C and heat deflection temperature around 105°C.

This combination makes HM065AT particularly attractive where moulders need excellent flow without losing the stiffness and dimensional stability expected from a homopolymer PP grade. Typical processing guidance includes barrel temperatures around 190–230°C, die temperatures around 220–250°C, and mould temperatures in the 10–30°C range. These settings support rapid mould filling, reduced cycle time, and efficient production in thin wall and multi cavity applications. The grade is also useful in compounding and masterbatch production where high flow can improve mixing, dispersion, and downstream process efficiency.

Applications

Thin Wall Injection Moulding

Mangpol HM065AT is highly suitable for thin wall injection moulding where very fast flow is required to fill narrow sections before freeze-off. This makes it a strong option for thin wall containers, lids, and packaging parts where converters need high productivity, lower cycle times, and consistent mould filling across demanding geometries.

Multi Cavity Moulding

For multi cavity moulding, HM065AT helps improve filling balance and repeatability across multiple cavities. Its ultra-high flow profile supports efficient production of high-volume moulded items where output speed, dimensional consistency, and reduced rejection rates are critical for commercial performance.

Compounding Applications

HM065AT is also relevant as a base resin for compounding operations. Its high flow can support better filler incorporation, smoother processing, and easier formulation handling, making it useful for processors developing customized polypropylene compounds for industrial applications.

Masterbatch Production

In masterbatch manufacturing, this grade offers advantages in dispersion and processability due to its strong flow characteristics. It can help improve pigment or additive distribution while supporting efficient extrusion and downstream conversion, especially where a high-flow PP carrier resin is preferred.

Comparable Alternatives

Within the MRPL portfolio, HM012T is a lower-flow general-purpose injection grade, while HM025AR is a controlled rheology option that balances stiffness and flow for thin wall and furniture applications. HM020 is another thin wall grade, but HM065AT clearly moves into a much higher flow range for faster filling, shorter cycles, and compounding-oriented use cases. This makes HM065AT the better fit when mould geometry is demanding or output speed is a top priority.

In the broader market, HM065AT can be compared with OPaL MH55N, IOCL Repol H410FB, and Reliance Repol H410FB type grades used in high-flow injection moulding. Compared with these alternatives, HM065AT is especially relevant for buyers seeking MRPL-origin polypropylene homopolymer for thin wall packaging, multi cavity housewares, and compounding applications where ultra-high flow and dimensional stability are key selection factors.