OPAL PP Opalene MH23

OPAL PP Opalene MH23 is a polypropylene homopolymer injection moulding grade manufactured by ONGC Petro additions Limited (OPaL) under the OPaLene PP portfolio. Produced using Ineos Gas Phase polymerization technology, this natural coloured grade is designed for processors who need higher flow, good stiffness, reliable dimensional stability, and faster moulding cycles in commercial injection moulding operations.

MH23 is positioned as a high flow general-purpose PP homopolymer for moulders serving household, consumer, and rigid packaging markets. It is especially suitable where easy processing, stable cavity filling, and repeatable output are important for thin wall moulded articles and daily-use rigid plastic components.

Manufacturer Snapshot

ONGC Petro additions Limited (OPaL) is one of India’s major petrochemical manufacturers with a broad polypropylene product range for injection moulding, film, raffia, and specialty industrial applications. OPaLene PP grades are widely used across the Indian plastics market because of their application-focused positioning, dependable polymer quality, and compliance-backed documentation for regulated and industrial end uses.

Technical Insights and Data Sheet Highlights

OPAL PP Opalene MH23 has a melt flow index of 23 g/10 min, making it a high flow polypropylene homopolymer suited for injection moulding applications that require easy mould filling and improved productivity. This flow profile is particularly useful in thin wall moulding, consumer goods, and rigid packaging formats where faster cycle times and smooth processing are key buying criteria.

The grade has a density of 0.90 g/cm³, which supports lightweight rigid part design typical of polypropylene homopolymer applications. In mechanical performance, MH23 offers 35 MPa tensile strength at yield, giving moulders a dependable stiffness-oriented resin for structural consumer and household parts. Its 200% elongation at break adds a useful balance of toughness for general-purpose injection moulded products.

For rigidity, MH23 delivers a flexural modulus of 1450 MPa, making it suitable for moulded parts that need shape retention and dimensional consistency. Its notched Izod impact strength of 20 J/m at 23°C supports normal handling durability, while Rockwell hardness of 95 on the R scale reflects the hard, rigid surface character expected from a PP homopolymer injection grade.

Thermally, MH23 provides a Vicat softening point of 150°C and heat deflection temperature of 100°C, making it suitable for a wide range of rigid moulded applications exposed to moderate service heat. The overall property balance makes MH23 a practical choice for processors looking for a high flow PP grade with strong moulding efficiency and stable finished part performance.

Injection Moulding Performance

MH23 is engineered for injection moulders who need a polypropylene homopolymer that runs efficiently across general-purpose rigid applications. Its higher flow helps reduce mould filling challenges, supports faster production cycles, and improves consistency in parts with thinner sections or more detailed mould geometry.

Because the grade combines flow with stiffness and dimensional stability, it is especially relevant for manufacturers producing repeat-volume consumer goods, household mouldings, and rigid packaging items. It is a strong fit where processors want a practical balance between productivity and part performance.

Applications

Household Articles

OPAL PP Opalene MH23 is well suited for household injection moulded products such as storage items, utility containers, kitchen-use components, organizers, and other rigid daily-use plastic articles. Its high flow supports efficient mould filling, while its stiffness helps maintain product shape and usability in regular consumer handling conditions.

Consumer Products

For consumer product moulding, MH23 offers a reliable combination of processability, rigidity, and dimensional stability. It is suitable for moulded plastic goods that require repeatable production, clean part definition, and a solid structural feel, making it relevant for a wide range of everyday consumer applications.

Rigid Packaging

MH23 is also a strong candidate for rigid packaging applications where moulders need a PP homopolymer grade that processes easily and delivers stable part geometry. It can be used in rigid containers, packaging components, and utility packaging formats where stiffness, lightweight design, and production efficiency are important.

Thin Walled Moulded Articles

One of the most important use cases for MH23 is thin wall injection moulding. Its 23 MFI flow profile helps processors fill thinner sections more effectively, reduce cycle limitations, and improve output in moulded articles where speed and consistency are essential to commercial production.

Compliance and Handling

This grade is aligned with IS 10910, IS 10909 positive list, and FDA CFR Title 21, 177.1520 requirements for olefin polymers. For best results, MH23 should be stored in a dry, dust-free environment below 50°C and protected from direct sunlight and heat to maintain material quality and processing consistency.

Comparable Alternatives and Grade Positioning

Within the OPaL portfolio, OPAL PP Opalene MH25N is a close alternative for processors seeking a higher flow injection moulding grade, but MH25N is better positioned where clarified appearance and slip-assisted processing are more important. MH23 is the more straightforward choice for general-purpose high flow moulding where clarity is not the main requirement.

Compared with OPAL PP Opalene MH13, MH23 offers significantly higher flow and is more suitable for thin wall moulding and faster cycle applications. MH13 is more aligned with stiffness-led household and furniture moulding, while MH23 is assigned to processors who prioritize easier flow, faster moulding, and broader general-purpose injection use.

Against Indian alternatives such as IOCL Repol H112MA and Reliance high flow injection grades, MH23 remains competitive for moulders looking for a balanced PP homopolymer with good stiffness, dimensional stability, and production efficiency. The rationale behind MH23 is clear: it is designed for high flow injection moulding applications where productivity and rigid part performance must work together.