Reliance PP Repol H200MK

Reliance PP Repol H200MK is a specialty polypropylene homopolymer injection moulding grade developed by Reliance Industries Limited for applications that demand high flow, good stiffness, improved clarity, clean surface appearance, and reliable processing in intricate moulds. It is specially formulated with a clarifier and antistatic agent, making it highly suitable for syringes, clear rigid articles, thin-wall molded products, and multi-cavity injection moulding where transparency, gloss, and reduced dust attraction are commercially important.

Manufactured by Reliance Industries Limited using Unipol polypropylene technology at Gujarat facilities, Repol H200MK belongs to the Repol homopolymer portfolio but occupies a more specialized position than standard general-purpose injection grades. It is designed for converters who need a PP homopolymer that can flow through long paths, fill complex geometries efficiently, and deliver rigid molded parts with better visual clarity and controlled surface behavior. For buyers searching for Reliance H200MK, clarified PP homopolymer for syringe moulding, or antistatic PP injection grade for clear containers, this grade is one of the most relevant options in the Reliance portfolio.

Manufacturer and Brand Background

Reliance Industries Limited is one of India’s leading polymer manufacturers with a broad polypropylene portfolio serving packaging, medical, industrial, consumer, and technical processing sectors. The Repol brand is widely recognized across domestic and export markets for polypropylene grades used in injection moulding, fibre, film, blow moulding, and extrusion applications.

Within this portfolio, H200MK is positioned as a clarified and antistatic PP homopolymer for specialized injection moulding. Unlike standard PP homopolymer grades that focus mainly on stiffness and general processability, H200MK is tailored for applications where optical appearance, dust resistance, and long-flow mould filling are equally important. That makes it especially relevant for medical moulders, pharmaceutical packaging manufacturers, and producers of clear rigid consumer articles.

Technical Insights and Material Performance

Reliance PP Repol H200MK has a melt flow rate of 20 g/10 min at 230°C/2.16 kg, which gives it excellent flow behavior for thin-wall parts, intricate geometries, and long flow path moulds. This higher-flow profile is particularly useful in multi-cavity moulding, where uniform filling and repeatability are essential for production efficiency and part consistency. For syringe components, small medical articles, and clear rigid packaging, this flow level supports faster and cleaner mould filling than lower-MFI homopolymer grades.

The density is approximately 0.90 g/cm³, which is typical for polypropylene homopolymer. Mechanical performance includes tensile strength at yield of 35 MPa, elongation at yield of 11 percent, flexural modulus of 1.70 GPa, notched Izod impact strength of 26 J/m at 23°C, and Shore D hardness of 69. These values show that H200MK maintains the rigidity expected from PP homopolymer while also offering enough toughness for molded medical and packaging components.

Its most important technical differentiator is the additive package. The clarifier improves transparency and gloss, helping molded parts appear cleaner, brighter, and more visually refined than standard non-clarified PP homopolymers. The antistatic agent reduces static charge build-up, which helps limit dust attraction on molded surfaces. This is especially valuable in syringes, pharmaceutical packaging, and clear rigid articles where appearance, cleanliness, and handling quality matter.

Another key strength is color stability and process consistency. In production environments where multiple cavities, long runs, and strict visual standards are involved, H200MK offers a more specialized solution than broad-purpose PP injection grades. It combines high flow with stiffness and optical improvement, which is why it is assigned to medical, pharmaceutical, and premium clear rigid moulding applications.

Processing Characteristics and Moulding Behavior

H200MK is recommended for injection moulding and is particularly suitable for multi-cavity tooling, intricate part geometries, and long flow path designs. Its 20 MFI profile helps the melt travel efficiently through narrow sections and detailed cavities, reducing the risk of incomplete filling in demanding moulds. This makes it highly relevant for syringe barrels, small medical components, clear containers, and thin-wall rigid packaging.

A practical processing window is generally aligned with standard PP homopolymer injection conditions, with melt temperatures commonly around 210°C to 260°C depending on machine setup, mould design, and part geometry. The grade’s formulation supports smooth mould filling, good surface finish, and stable repeatability in high-output production lines. Storage is typically recommended in dry, closed conditions below 50°C and protected from direct light to preserve material quality.

Applications and Industry Use Cases

Medical Syringes and Pharmaceutical Components

Reliance PP Repol H200MK is especially suited for syringe moulding and related medical or pharmaceutical injection moulded products. These applications require a resin that can fill long flow paths, maintain dimensional consistency in multi-cavity tools, and deliver clean, rigid parts with good visual quality. The clarifier helps improve appearance, while the antistatic package supports cleaner surfaces with lower dust attraction during handling and storage.

Clear Rigid Articles

H200MK is a strong choice for clear rigid articles where standard PP homopolymer grades may not provide the same level of transparency and gloss. It is suitable for molded containers, cups, dispensers, utility packaging, and rigid consumer products that benefit from a cleaner visual finish. For manufacturers targeting clarity-oriented PP applications, this grade offers a practical balance of optical improvement and structural performance.

Thin-Wall Packaging and Small Injection Mouldings

Because of its 20 MFI flow behavior, H200MK performs well in thin-wall molded products and small precision components. It can support efficient cavity filling in parts with narrow sections or more complex geometry, which is useful in packaging, medical disposables, and compact molded articles. This makes it attractive for converters seeking productivity and part consistency in high-volume injection moulding.

Multi-Cavity Injection Moulding

H200MK is particularly relevant for multi-cavity moulding where repeatability, flow balance, and part uniformity are critical. In such production environments, a higher-flow clarified PP homopolymer can improve filling performance across cavities while also maintaining good stiffness in the final part. This is one of the reasons the grade is strongly positioned for syringe and pharmaceutical packaging applications.

Consumer and Specialty Rigid Packaging

The grade can also be used in specialty rigid packaging and consumer molded articles where appearance, gloss, and reduced static-related dust pick-up are important. For converters making premium clear or semi-clear molded products, H200MK offers a more refined performance profile than standard general-purpose homopolymer grades.

Performance Advantages

The biggest advantage of H200MK is its combination of clarifier and antistatic additive technology. Many PP homopolymer injection grades offer stiffness and processability, but fewer are specifically designed to improve optical appearance while also reducing dust attraction. This makes H200MK more suitable for medical and clear rigid applications where cleanliness and presentation matter.

Its 20 MFI flow profile is another major benefit. Compared with lower-flow PP homopolymers, H200MK fills intricate moulds more easily and supports long flow path applications more effectively. This can improve productivity and reduce moulding challenges in multi-cavity and thin-wall production.

The grade also delivers a strong stiffness profile with a flexural modulus of 1.70 GPa, which helps maintain part rigidity even in applications requiring better clarity. That balance between flow, stiffness, and appearance is the core reason H200MK is assigned to syringe moulding, clear rigid packaging, and specialty injection moulded articles.

Alternatives and Comparable Grades

Within the Reliance Repol portfolio, H200MA is one of the closest alternatives in terms of melt flow rate, as it also sits in the 20 MFI PP homopolymer range. However, H200MA is positioned more as a standard injection moulding grade, while H200MK adds clarifier and antistatic functionality. For buyers who need transparency, cleaner surfaces, and better suitability for medical or clear rigid applications, H200MK is the more specialized choice.

H110MA and H110MAS are lower-flow alternatives in the 11 MFI range and are better suited to rigid containers, furniture, and houseware where stiffness and dimensional control are priorities but very high flow and optical enhancement are not essential. H110MAS also offers nucleation benefits for warpage control, but it does not occupy the same clarified, syringe-oriented niche as H200MK.

Compared with clarified PP injection grades from HMEL, IOCL, and OPaL, H200MK competes strongly because of its combined clarifier and antistatic formulation, strong flow behavior, and medical-oriented positioning. Many competing grades may offer clarity or injection performance, but H200MK is particularly well aligned for syringe moulding, pharmaceutical packaging, and clear multi-cavity molded products where all three factors—flow, clarity, and surface cleanliness—must work together.

The rationale behind the assigned grade is clear: H200MK is selected when the application requires a clarified, antistatic PP homopolymer with high flow for intricate injection moulding rather than a standard general-purpose PP resin.