| HS Code | 412206 |
| Density | 0.90 g/cm³ |
| Melt Flow Index | 11 g/10 min (230°C / 2.16 kg) |
| Tensile Strength At Yield | 35 MPa |
| Elongation At Break | 15% |
| Flexural Modulus | 1500 MPa |
| Notched Izod Impact Strength | 4 kJ/m² |
| Heat Deflection Temperature | 105°C (0.45 MPa) |
| Vicat Softening Point | 155°C |
| Rockwell Hardness | R100 |
| Melting Point | 165°C |
As an accredited Indian Oil PP Homopolymer 1110MA factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Indian Oil PP Homopolymer 1110MA is supplied in 25 kg woven polypropylene bags, moisture-protected for safe handling and storage. |
| Container Loading (20′ FCL) | 20' FCL container loaded with 25kg bags of Indian Oil PP Homopolymer 1110MA, palletized and secured for safe transport. |
| Shipping | Indian Oil PP Homopolymer 1110MA is shipped as solid granules in moisture-resistant bags or bulk containers. Ensure dry, ventilated conditions, avoid direct sunlight and high temperatures. Standard freight (truck, rail, or container) is suitable. Handle gently to prevent bag damage and contamination. |
| Storage | Store Indian Oil PP Homopolymer 1110MA in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and open flames. Keep in original unopened packaging to prevent moisture contamination and dust ingress. Maintain moderate temperatures to avoid softening or degradation. Store on pallets off the ground, with proper inventory rotation to ensure stable quality. |
| Shelf Life | Shelf life is indefinite when stored in a cool, dry place, protected from heat, sunlight, and moisture. |
Indian Oil PP Homopolymer 1110MA is a general-purpose injection moulding grade with a nominal melt mass-flow rate in the 11 g/10 min band (ISO 1133-1:2022, Method A, 230°C/2.16 kg). In thin-wall food contact packaging, the central process variable is the melt flow length relative to wall thickness. The grade is processed at melt temperatures between 220°C and 245°C with mould temperatures held at 15°C to 35°C to shorten cooling time. When wall thickness falls below 0.8 mm, filling pressure requirements rise non-linearly; injection pressure values of 90 MPa to 140 MPa are typical on high-speed hydraulic machines with 180 t to 350 t clamp force. Screw designs with compression ratio 2.5:1 to 3.0:1 and L/D ratio 20:1 to 25:1 are used to maintain melt homogeneity without excessive shear heat. The practical flow length to wall thickness ratio is tool-specific; flow simulation and gate freeze studies are required before setting the holding pressure. Mould shrinkage is generally in the 1.0–2.0% range (ISO 294-4), but anisotropic shrinkage between machine and transverse directions is the main cause of warpage in rectangular trays. Because PP is not hygroscopic, desiccant drying is not required for the base resin; surface moisture from condensation should be removed by hot air at 70–80°C for 1–2 h if containers have been stored in cold conditions. Production-scale injection moulders typically baseline each incoming lot using ISO 1133-1 before adjusting screw rotation speed because melt flow variation shifts fill time in thin-wall tools. Regrind from sprues and reject parts is usually limited to 10–20% because repeated extrusion raises the melt flow index and lowers tensile yield stress.
Food contact compliance is not an inherent property of the polymer alone. For EU markets, finished articles must meet EU 10/2011, including overall migration limits of 10 mg/dm². For US markets, the base homopolymer PP falls under FDA 21 CFR 177.1520(c), but the commercial compound containing masterbatch, nucleator, slip agent, or antistat must be covered under a specific food-contact notification or letter of no objection. Migration testing under EU 10/2011 is performed using food simulants A, B, and D2 depending on the food category. Indian Oil 1110MA does not require bisphenol A by chemistry; phthalates are not used as plasticizer in PP homopolymer. However, the moulder must document the masterbatch composition before issuing a declaration of compliance. If clarified with 0.05–0.20 wt% sorbitol-based nucleating agent, crystallization accelerates and cooling time can be shortened; haze reduction is measured by ASTM D1003, but the magnitude is tool-specific and transverse impact strength may decrease. Thin-wall terminal products include cold-fill dairy cups, portion cups, tray bases, and overcap lids for non-carbonated foods. Hot-fill and retort applications are outside the normal operating envelope for this general-purpose grade without dedicated additive packages.
Closure applications expose the grade to a different failure mode: environmental stress cracking at the tamper-evident bridge and the thread root. Polypropylene homopolymer has lower environmental stress crack resistance than impact copolymer; therefore, 1110MA is evaluated mainly for still water, dairy, and dry nutrition closures rather than carbonated soft drink closures. Stress crack resistance is characterized under ISO 22088-2 or ASTM D1693; published data for this specific grade in carbonated closure designs is limited. Torque retention is measured over a 24 h to 72 h interval after capping. Failure typically appears as bridge breakage or thread strip if the hot runner gate freezes prematurely or if the cooling time is insufficient. Processing for closures uses melt temperatures of 215°C to 240°C and mould temperatures of 20°C to 30°C. Tamper-evident bridge thickness is set between 0.25 mm and 0.45 mm. High injection velocity is maintained through the bridge region to avoid hesitation lines. Valve-gated hot runner systems or cold runner tunnel gates are both used; cold runner tunnel gates must have sufficient taper to avoid gate stringing. Slip agents, typically erucamide at 500 ppm to 1,000 ppm, reduce cap-on-bottle torque in consumer opening, but excessive slip migrates to the surface and may violate food-contact migration limits. Terminal closures in this segment include 28 mm and 29/25 mm caps for HDPE and PET still water bottles, dairy bottles, and wide-mouth closures for nutrition powders. The homopolymer grade is not recommended for aggressive surfactant bottles, long-term outdoor exposure, or carbonated beverage closure bridges unless an instrumented torque retention study has been completed on the specific neck finish.
Automotive cabin air handling parts—such as dashboard air outlet nozzles, demister grilles, and HVAC control bezels—require dimensional stability after 80–90°C cabin soak cycles. Indian Oil 1110MA homopolymer PP can be processed at melt temperatures of 230°C to 250°C and mould temperatures of 30°C to 50°C to improve grain reproduction in textured cavities. The part surfaces are often grained to hide sink marks; higher mould temperatures reduce flow lines and improve weld line strength around central vanes. The material must meet FMVSS 302 burn rate requirements not exceeding 102 mm/min when tested on a horizontal specimen. Odor and fogging performance is controlled under VDA 270 and VDA 278; the base Indian Oil grade is not specifically certified for low-odor automotive interior projects, so each lot must be evaluated before line approval. The operational boundary of homopolymer PP is low-temperature ductility. Below 0°C, homopolymer PP loses impact toughness and may crack on snap-fit assembly or in cabin storage during winter. Therefore, parts in this segment are limited to non-impact, low-stress interior components. Terminal components include air outlets, adjustable louvre blades, center console trim plates, and non-structural connector covers. For crash-relevant or under-hood brackets, impact copolymer PP is substituted. Long-term heat aging above 90°C in closed cabin conditions requires additional antioxidant stabilization because thermo-oxidative degradation causes surface chalking and embrittlement at weld lines.
Electrical enclosures and switch plates molded from 1110MA use wall sections between 1.5 mm and 3.0 mm. The process control point is sink mark avoidance around brass inserts and weld line integrity around cut-outs. Melt temperature is set at 220°C to 250°C; mould temperature is maintained at 30°C to 60°C with pressurised water to stabilize surface gloss and reduce post-mould warpage. Low mould temperatures increase cycle speed but produce higher residual stress around inserts; stress relief annealing at 80–90°C for 30–60 min may be required for critical dimension parts, though this adds secondary operation cost. High-speed injection near the gate reduces jetting in switch plate cavities. The runner system is typically a cold runner with rectangular cross-sections of 4 mm to 6 mm depth; hot runners are used in multi-cavity switch housing tools to reduce regrind. Flammability classification is compound-specific. Natural 1110MA without flame retardant may perform as UL 94 HB in a given plaque thickness, but it should not be specified for live electrical parts requiring V-2, V-1, or V-0 without a UL-listed flame retardant masterbatch. For unattended appliance housings, glow wire testing according to IEC 60695-2-11 may require 650°C or 750°C performance; homopolymer PP does not pass this classification without a phosphorus-based or intumescent formulation. Electrical properties such as comparative tracking index and dielectric strength are relevant for terminal components like ceiling rose housings, connector bases, and modular faceplates, but the final compound must be tested under IEC 60112 and IEC 60243-1. This limitation is often missed in early sourcing because the base injection moulding grade is incorrectly assumed to inherit all electrical certifications.
| Application segment | Standard or regulation | Clause / test method | Limiting criterion |
|---|---|---|---|
| Thin-wall food contact | EU 10/2011 | Overall migration | 10 mg/dm² |
| Thin-wall food contact | FDA 21 CFR | 177.1520(c) | Homopolymer PP listed for food contact |
| Closures | ISO 22088-2 | Environmental stress crack resistance | No brittle failure at specified strain |
| Automotive cabin | FMVSS 302 | Horizontal burn rate | ≤ 102 mm/min |
| Electrical enclosure | UL 94 | HB | ≤ 40 mm/min or ≤ 75 mm/min depending thickness; no flame to clamp |
| Medical housing | ISO 10993-1:2018 | Biological evaluation | Risk assessment completed and documented |
Medical components made from general-purpose Indian Oil 1110MA are limited to non-implant, short-term external-contact, or non-patient-contact applications. The grade itself does not carry an automatic ISO 10993-1:2018 biological evaluation certificate or USP Class VI traceability. Moulders seeking to use it in diagnostic device housings, laboratory consumables, or transport trays must validate the complete compounded formulation under ISO 10993-5 for cytotoxicity and ISO 10993-10 for irritation. Sterilization is a core constraint. Autoclave sterilization at 121°C for 15–30 min can be used with PP homopolymer if the stabilizer package permits; repeated autoclave cycles may cause dimensional distortion. Ethylene oxide sterilization requires aeration to remove residues according to ISO 10993-7. Gamma irradiation at 25–40 kGy may yellow the polymer and embrittle the material unless the grade contains radiation stabilizer. Cleanroom injection moulding under ISO 13485:2016 requires documented contamination control; the use of mould release agents is prohibited. Terminal components include diagnostic instrument housings, specimen transport trays, and disposable laboratory cuvettes. Published data for 1110MA in sustained patient-contact devices is limited; the material should not be used for implant casings, drug-delivery components, or blood-contacting parts without dedicated regulatory testing.
Houseware and consumer storage articles use the lowest process intensity of all 1110MA applications. Melt temperatures range from 210°C to 240°C; mould temperatures from 15°C to 40°C. The material fills thick sections of 2.5 mm to 5.0 mm without high injection velocities. Cycle time is controlled by cooling time rather than material constraints. Terminal products include storage containers, hangers, bins, and stackable utility boxes. Compliance is limited to REACH SVHC content and heavy metal restrictions under packaging waste directives; food-contact claims are not automatic unless the part is tested for the intended food type. Surface scratches are visible on high-gloss surfaces; textured or matte finishes are preferred because shallow wall sections hide minor sink marks. No significant process conflict exists in this segment.
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In the Indian Oil polypropylene portfolio, the grade designated 1110MA is positioned as an injection-moulding homopolymer. Its model designation identifies a nominal melt mass-flow rate class of 11 g/10 min when tested at 230 °C under 2.16 kg piston load in accordance with ISO 1133-1:2022. The alphabetic suffix distinguishes the additive package from other grades in the same 1110 series; in many supplier nomenclatures, MA represents an antistatic modification, but the exact description must be confirmed against the Indian Oil certificate of analysis because suffix meanings are not harmonised across polymer producers. The material is typically processed on hydraulic or electric injection moulding machines with a general-purpose three-zone screw having L/D ratio of at least 18:1 and compression ratio of 2.0:1–2.5:1. Published minimum and maximum machine settings for this specific grade are limited outside the supplier’s technical bulletin, so moulders should treat production release data as the governing specification.
In practice, 1110MA is selected for thin-walled parts, caps and closures, housewares, small appliance components, and rigid packaging applications where the combination of flow, stiffness, and heat resistance justifies the use of a homopolymer. Food-contact suitability is typically assessed under FDA 21 CFR 177.1520 for olefin polymers and Commission Regulation (EU) No 10/2011, but only the supplier’s written compliance statement covers a specific production campaign. The material is not recommended for prolonged outdoor exposure without UV stabilisation, and validation by ISO 4892-2:2013 xenon-arc weathering is required for pigmented or unpigmented parts used in direct sunlight.
Processing of 1110MA is bounded by melt temperature, melt residence time, and mould surface temperature. A typical barrel profile for a 20:1 L/D screw is 210 °C in the feed zone, 230 °C in the compression zone, 240 °C in the metering zone, and 240 °C at the nozzle. At these settings, the melt mass-flow rate supports wall sections down to 0.8 mm on machines with clamp force above 800 kN, provided gate diameter and flow length are consistent with spiral-flow data. Melt temperatures above 250 °C accelerate oxidative chain scission and can shift the melt flow rate beyond the upper specification limit, producing flash, odour, and discolouration. Melt temperatures below 200 °C increase orientation stress and reduce weld-line strength. Mould temperature is usually held between 30 °C and 60 °C; the lower half of this range shortens cycle time but increases surface gloss variation and anisotropic shrinkage. Pre-drying is not normally required unless the material has been stored at relative humidity above 60% or subjected to cold-room condensation; under those conditions, drying at 80 °C for 2–4 h is applied in a desiccant dryer to avoid surface splay caused by surface moisture. Injection pressure is commonly 70–100 MPa, with hold pressure maintained at 50–70% of peak injection pressure, but the correct settings depend on gate geometry, runner length, and machine-specific pressure loss.
Capillary rheometry at 230 °C per ISO 11443:2021 shows shear-thinning behaviour consistent with a linear polypropylene homopolymer. Apparent viscosity for the 10–12 g/10 min MFR class may fall near 200–300 Pa·s at 100 s⁻¹, dropping to 30–50 Pa·s at 1,000 s⁻¹; however, these values are sensitive to moisture, thermal stabiliser content, and prior processing history. Because molecular weight distribution influences both cavity filling and warpage, moulders should obtain the supplier’s viscosity-shear-rate curve rather than extrapolating from a single melt flow rate point.
Because the backbone of 1110MA contains no ethylene comonomer, its low-temperature impact behaviour differs from Indian Oil impact copolymer grades. A homopolymer test plaque may show notched Izod values below 2.0 kJ/m² at -20 °C under ISO 180:2023, whereas impact copolymers of similar melt flow can retain values above 6.0 kJ/m². The compensating advantage is rigidity: tensile yield stress for the 11 g/10 min homopolymer class is commonly 32–36 MPa per ISO 527-2:2012, and flexural modulus approaches 1400–1600 MPa per ISO 178:2019. These values are higher than those of most random copolymers and impact copolymers of equivalent melt flow. The grade is therefore directed toward mouldings where stack load, dimensional stability, and elevated-temperature performance carry higher weight than sub-ambient ductility.
Thermal benchmarks further define the response of 1110MA. Differential scanning calorimetry per ISO 11357-3:2018 typically records a polypropylene homopolymer melting peak between 160 °C and 165 °C. Vicat softening temperature A50 per ISO 306:2022 is often reported in the 150–155 °C range, and heat deflection temperature under 0.45 MPa per ISO 75-2:2013 is generally 95–105 °C. These values indicate that short-term hot-fill exposure up to 100 °C may be feasible; however, continuous load above 80 °C requires creep testing on the actual part, because public creep-rupture data for this specific grade is limited. Crystallisation temperature by differential scanning calorimetry per ISO 11357-3:2018 is commonly observed near 115–125 °C, which influences cooling rate requirements in thick sections and hot-runner systems.
The following table summarises typical specification checkpoints for 1110MA based on published data for 11 g/10 min injection-moulding homopolymers. Lot-specific certificates of analysis may list narrower guaranteed values.
| Property | Test method | Unit | Typical range or nominal value |
|---|---|---|---|
| Melt mass-flow rate (230 °C, 2.16 kg) | ISO 1133-1:2022 | g/10 min | 10–12 |
| Density | ISO 1183-1:2019 | g/cm³ | 0.900–0.910 |
| Tensile yield stress | ISO 527-2:2012 | MPa | 32–36 |
| Flexural modulus | ISO 178:2019 | MPa | 1400–1600 |
| Notched Izod impact, 23 °C | ISO 180:2023 | kJ/m² | 2.5–4.0 |
| Vicat softening temperature A50 | ISO 306:2022 | °C | 150–155 |
| Heat deflection temperature, 0.45 MPa | ISO 75-2:2013 | °C | 95–105 |
During production trials on high-speed lines, three defects dominate when 1110MA is run outside the recommended window: jetting, sink marks, and warpage. Jetting is controlled by using a gate diameter of at least 1.0 mm for thin-wall sections and by positioning the gate so that the melt fountain does not strike a core pin directly. Sink marks are reduced by applying hold pressure until gate freeze is complete; gate freeze time for a 1.5 mm wall section is typically 2–4 s depending on gate thickness and cooling-circuit performance. Warpage is minimised by maintaining uniform mould temperature and by balancing the feed system to achieve a filling pressure variation below 10 MPa across cavities. These observations are consistent with standard injection-moulding troubleshooting experience but should be validated on the specific tool because published data for this specific configuration is limited.
Where 1110MA is substituted for a low-flow extrusion grade or a 3 g/10 min homopolymer, the higher flow number reduces fill pressure and shortens hold-pressure time. On a hydraulic toggle injection moulding machine with screw diameter 30 mm, L/D 20:1, and clamp force of 1,000 kN, switching to 1110MA can reduce peak injection pressure by approximately 15–25% in parts with wall thickness 1.0–2.0 mm, as estimated by general flow simulation and confirmed by spiral-flow trials per mould-filling practice under ISO 294-1:2017. The lower melt strength relative to low-flow homopolymers, however, makes 1110MA unsuitable for large-diameter pipe, blown film, blow moulding, and profile extrusion operations that require high drawdown stability. The difference is also visible in process capability: the higher melt flow rate permits shorter cycle time but increases the risk of flash in multicavity tools with worn parting lines or clamp force below 800 kN.
The comparative matrix below distinguishes 1110MA from typical impact copolymer and random copolymer grades of similar producer classes. The values are general published ranges for the polymer families, not replacement for grade-specific data sheets.
| Property | 1110MA homopolymer | Impact copolymer, similar melt flow | Random copolymer, similar melt flow |
|---|---|---|---|
| Melt mass-flow rate, ISO 1133-1:2022 | 10–12 g/10 min | 8–20 g/10 min | 8–15 g/10 min |
| Tensile yield stress, ISO 527-2:2012 | 32–36 MPa | 22–27 MPa | 25–30 MPa |
| Flexural modulus, ISO 178:2019 | 1400–1600 MPa | 900–1200 MPa | 800–1100 MPa |
| Notched Izod at -20 °C, ISO 180:2023 | below 2.0 kJ/m² | 6.0–10.0 kJ/m² | 2.0–4.0 kJ/m² |
| Vicat softening temperature A50, ISO 306:2022 | 150–155 °C | 145–152 °C | 130–145 °C |
| Haze, ASTM D1003-13 | high | high | low |
Housewares, rigid packaging closures, and small appliance parts are the principal end-use fields. For food-contact service, a written statement from Indian Oil covering FDA 21 CFR 177.1520 and (EU) No 10/2011 is required; the polymer class is typically compliant but the antioxidant, antistatic, or nucleating package must be reviewed. If the suffix MA denotes an antistatic package as indicated in supplier product bulletins, surface dust pick-up may be reduced, but surface resistivity should be measured per IEC 62631-3-2:2016; no permanent conductive behaviour should be inferred. Chemical incompatibility exists with strong oxidising acids, chlorinated solvents, and high-aromatic hydrocarbons, which can soften or stress-crack the moulding; solvent stress-crack resistance screening may follow ISO 22088-2:2006. Outdoor service without UV stabilisation or carbon black is not recommended, and painted or printed surfaces require adhesion testing because homopolymer polypropylene has low surface energy. Under REACH, the polymer substance is generally exempt from registration, but the processor must evaluate additives and monomer residues in the finished article and obtain the supplier’s food-contact and regulatory documentation for the specific commercial grade.
