| HS Code | 250752 |
| Density | 0.905 g/cm³ |
| Melt Flow Rate 230 C 2 16 Kg | 6.0 g/10 min |
| Tensile Stress At Yield | 35 MPa |
| Elongation At Yield | 11% |
| Flexural Modulus | 1400 MPa |
| Charpy Notched Impact Strength 23 C | 4 kJ/m² |
| Rockwell R Hardness | 105 |
| Melting Temperature | 163 °C |
| Vicat Softening Temperature A 50 | 155 °C |
| Heat Deflection Temperature 1 8 Mpa | 60 °C |
As an accredited SABIC PP 506P factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | SABIC PP 506P polypropylene is supplied in 25 kg heat-sealed, polyethylene-lined kraft paper bags, palletized and stretch-wrapped. |
| Container Loading (20′ FCL) | Loading a 20′ FCL of SABIC PP 506P means palletized bags are securely stowed, ventilated, and protected from moisture. |
| Shipping | SABIC PP 506P is shipped as polymer pellets in sealed multi-wall paper bags, palletized and stretch-wrapped for protection. Containers must be dry, clean, and free from contaminants. Avoid exposure to direct sunlight, moisture, and extreme heat during transit. Standard handling equipment ensures safe loading and unloading. |
| Storage | Store SABIC PP 506P in a dry, clean, well-ventilated area, protected from direct sunlight, heat, and ignition sources. Keep original containers sealed to prevent moisture uptake and contamination. Avoid prolonged exposure to UV radiation or temperatures above 50°C, as these can cause degradation. Maintain good housekeeping to minimize dust accumulation. Use within recommended shelf life for best performance. |
| Shelf Life | SABIC PP 506P has a shelf life of at least one year when stored in a cool, dry, ventilated area away from sunlight. |
Biaxially oriented polypropylene film production from SABIC PP 506P is routed through a cast-sheet extrusion stage on a stenter line before machine-direction and transverse-direction orientation. The resin is characterized by a melt flow rate of 6.0 g/10 min under ISO 1133-1 and a density of 0.905 g/cm³ under ISO 1183, which permits cast sheet extrusion at 230–250 °C through a flat die with a die gap of 0.5–1.0 mm. The cast sheet, usually 200–1400 µm thick, is quenched on a chill roll held at 18–25 °C to suppress large spherulite growth and reduce haze after orientation. Machine-direction stretching is conducted at 130–150 °C with a draw ratio of 4.5–5.5, followed by transverse stretching in a tenter oven at 160–175 °C with a draw ratio of 7.0–9.0. Because the base resin is a non-formulated homopolymer, antiblock additive masterbatch is typically dosed at 0.5–2.0 wt% and slip masterbatch at 500–1500 ppm erucamide to control blocking and coefficient of friction. Film for food-contact flexible packaging is evaluated under EU 10/2011, where the overall migration limit is 10 mg/dm², and under FDA 21 CFR 177.1520 for olefin polymers. At 20 µm gauge, the oriented film is commonly slit for snack packaging, adhesive tape base, wrap-around labels, and metallized barrier laminates. On high-output stenter lines of 8.0 m width and 300–400 m/min final line speed, edge trim can account for 5–10% of input sheet because homopolymer transverse stretching requires elevated oven temperatures and stable gauge control; in contrast, a cast roll temperature above 35 °C typically increases sheet crystallinity and produces transverse thickness bands that propagate into the stretched film. Published data for this specific configuration is limited, but process logs generally correlate edge trim with transverse draw ratio and cast sheet flatness rather than with melt flow index alone. Although polypropylene homopolymer is not hygroscopic, bulk resin stored at relative humidity above 60% should be predried at 80 °C for 2 h to avoid surface splay.
Cast polypropylene film extrusion from SABIC PP 506P is limited less by melt pumping than by the capacity of the quench system to remove heat from the web before the film reaches the stripper roll. The homopolymer is processed at melt temperatures of 240–270 °C through a die gap of 0.3–0.6 mm; the melt web travels through an air gap of 20–60 mm before contacting a polished chill roll at 15–25 °C. Output on a 2.5 m wide cast film line for 30 µm film typically reaches 120–180 m/min, but the upper limit is set by web flapping and edge neck-in because the low melt strength of a homopolymer with 6.0 g/10 min MFR allows the unsupported web to draw down under its own weight. Edge neck-in of 20–40 mm is observed on lines without vacuum boxes; with a suction quench box positioned within 10 mm of the die lip, neck-in is reduced to 10–25 mm. Surface haze and gloss are controlled by chill roll temperature and air gap: a chill roll temperature of 18 °C lowers haze below 2.5% at 30 µm when measured by ASTM D1003, while a temperature above 30 °C increases crystalline roughness and raises haze above 4%. The film is usually not used as a heat-seal layer because the seal initiation temperature of polypropylene homopolymer exceeds 140 °C; in lamination structures, the cast web is used as the print or outer layer and bonded to a lower-sealing random copolymer or polyethylene sealant film. Slip and antiblock masterbatches are added at 1–3 wt%, but erucamide levels above 2000 ppm can plate out on the chill roll and form haze bands that are visible in printed areas. Typical terminal products include printed lamination film for snack pouches, textile packaging, adhesive tape base, and photo album page protectors. Food-contact grades must comply with EU 10/2011 overall migration of 10 mg/dm² and FDA 21 CFR 177.1520 with end-test conditions selected according to food type and packaging use.
In woven sack production, SABIC PP 506P is extruded as a flat film, quenched in a water bath at 25–40 °C, slit into ribbons, and hot-air drawn into tapes. The tape line is run at melt temperatures of 220–250 °C, with a die gap of 0.5–1.0 mm and a film thickness before slitting of 200–600 µm. A draw ratio between 1:6 and 1:8 in a hot air oven at 120–150 °C orients the homopolymer and raises tensile strength; the resulting tape is annealed on hot rolls at 90–120 °C to reduce shrinkage. For woven fertilizer sacks, the target tape breaking tenacity is at least 0.30 N/den, and elongation at break is held between 15% and 25% as measured by ASTM D2256. Fibrillation resistance is checked on slit tape edges because tapes drawn below 110 °C or pushed above 1:8 can split along the machine direction during weaving on circular looms. On a 90 mm single-screw extruder with 38 L/D, melt temperature fluctuations of ±5 °C alter tape denier and cause loom stops because the tape stiffness changes outside the shuttle tension window. Outdoor storage bags for rice, grain, and cement require UV stabilization: hindered amine light stabilizer masterbatch at 0.5–1.5 wt% or carbon black at 2–3 wt% is added before extrusion, and retention of tensile strength after 1000 h QUV exposure is checked by ISO 4892-2. Direct food contact for grain or sugar sacks is assessed under EU 10/2011 and FDA 21 CFR 177.1520; woven sack dimensions and seam strength are tested by ISO 21898 for flexible intermediate bulk containers or equivalent national standards for smaller sacks. Terminal products include woven sacks for bulk commodities, geotextile tapes, baler twine, and vegetable netting.
Monofilament extrusion from SABIC PP 506P for ropes, twine, and agricultural netting is performed on single-screw extruders with water-bath quenching at 30–45 °C. The melt is spun at 230–250 °C through spinneret holes of 0.8–1.5 mm, stretched in a two-stage hot-air oven at 110–140 °C at a total draw ratio around 1:7, and relaxed by 8–12% to stabilize shrinkage. The resulting monofilament diameter is typically 0.15–0.30 mm, and tenacity reaches 0.35 N/den or higher when measured by ASTM D2256. Water-bath temperature above 45 °C reduces orientation potential because the quenched filament contains more crystalline fraction before drawing; conversely, a bath temperature below 20 °C can form surface crazing during subsequent drawing. Marine and agricultural exposure requires compounding with 2000–5000 ppm hindered amine light stabilizer and 0.3–0.8 wt% carbon black or titanium dioxide. Rope and twine made from this homopolymer are tested for linear density and breaking force under ISO 2307, and mesh breaking force for netting under ISO 1806. Terminal products include baler twine, packaging cord, crop support twine, fishing net repair twine, and woven geotextile monofilaments. The grade is not suited for continuous immersion in hot chlorinated water, and published data for long-term hydrolytic aging of this specific configuration is limited.
Extrusion coating of polypropylene woven fabric with SABIC PP 506P is performed on a tandem line in which the woven substrate is corona-treated to a surface tension of 38–42 mN/m and then receives a molten web from a slot die. The resin is processed at 290–310 °C to reduce melt viscosity and promote oxidative adhesion to the PP substrate; coat weight is controlled between 15 g/m² and 30 g/m² by adjusting line speed and extruder throughput. The molten web is quenched on a matte chill roll at 15–25 °C, and the coated fabric is wound after the coating has cooled below 40 °C to avoid blocking. Adhesion between the coating and the woven substrate is evaluated by a peel test under ISO 11339; values of 2 N/15 mm to 4 N/15 mm are typical for unprimed PP-to-PP bonding when the melt temperature exceeds 290 °C and the substrate surface tension is at least 38 mN/m. Below 280 °C, peel strength falls below 1 N/15 mm and the coating can delaminate during sack filling. During coating, melt curtain instability appears as edge-in or necking at low coat weights; operators correct this by reducing the die gap to 0.4–0.6 mm and raising extruder back pressure. For food-contact woven sack lamination, the structure is assessed under EU 10/2011 overall migration limit of 10 mg/dm² and under FDA 21 CFR 177.1520; if the fabric is printed on the inside face, printing inks and overprint varnishes must also meet the same migration rules. Terminal products include laminated woven bags for animal feed, sugar, rice, and chemical goods, where the PP coating provides moisture resistance, printable surface, and improved stack slip resistance.
| Regulatory or test framework | Standard designation | Application boundary or measured parameter |
|---|---|---|
| EU food-contact plastics | EU 10/2011 | Overall migration 10 mg/dm²; specific migration limits per Annex II |
| US olefin polymer food contact | FDA 21 CFR 177.1520 | End-test conditions matched to food type under applicable regulations |
| UV weathering | ISO 4892-2 | Tensile retention after 1000 h QUV exposure for outdoor sack applications |
| Rope and twine breaking force | ISO 2307 | Linear density and minimum breaking force for PP ropes |
| Netting mesh breaking force | ISO 1806 | Mesh breaking force for PP netting twine |
| Flexible laminate peel | ISO 11339 | Coating-to-woven-substrate peel force 2–4 N/15 mm after melt processing |
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Designated by SABIC as a polypropylene homopolymer for sheet extrusion and plug-assisted thermoforming, SABIC PP 506P is supplied in pellet form and is specified for thin-gauge lids, trays, and translucent packaging where a balance of stiffness, melt stability, and drawability is required. The typical melt mass-flow rate is 6.0 g/10 min when determined at 230 °C under 2.16 kg according to ISO 1133-1:2022, and the typical density is 0.905 g/cm³ according to ISO 1183-1:2019. The homopolymer backbone has no measurable ethylene comonomer, which maintains optical translucency and flexural rigidity but limits low-temperature impact performance relative to impact-copolymer polypropylene grades. At production scale, the 6.0 g/10 min flow position separates the material from lower-flow extrusion homopolymers and higher-flow thin-wall injection grades; the intermediate viscosity reduces sheet sag during wide-die extrusion while retaining sufficient melt extensibility for cavity filling. Published extensional-rheology data for PP 506P, including capillary break-up extensional rheometer plateau force values, is limited, so sag resistance is most often validated on the converter’s roll-stack line rather than by a single laboratory test.
Melt-flow characterisation under ISO 1133-1:2022 is a low-shear capillary parameter and does not capture extensional strain hardening during plug-assisted forming. In extrusion, the shear rate at the die lip is typically 100–500 s⁻¹, and apparent viscosity at those shear rates is lower than the zero-shear viscosity by a factor that depends on the polymer’s Carreau-model parameters. No unified published Carreau model for PP 506P is available; therefore, pressure-flow relationships should be established using a capillary rheometer with a 1 mm die and 30:1 length-to-diameter ratio at 230 °C before specifying extruder screw torque. The melt mass-flow rate alone should not be used to predict sag resistance, because two homopolymers with similar MFR can differ in molecular-weight distribution breadth and extensional melt strength.
On single-screw sheet extruders with 30:1 to 36:1 L/D ratios and barrier or Maddock mixing sections, the practical melt-temperature window for PP 506P is maintained between 220 °C and 250 °C. Below 220 °C, high melt viscosity can elevate head pressure and reduce throughput, particularly when the die gap is less than 0.8 mm; above 250 °C, thermo-oxidative chain scission increases, leading to yellowing and a measurable loss of melt strength. Barrel profiles vary with screw geometry and line speed, but a typical profile begins at 180–190 °C at the feed throat, rises to 230–240 °C in the metering zone, and holds the die adapter at 240–250 °C. Melt temperature at the die lip is confirmed with an immersion thermocouple rather than by relying on barrel set points because shear heating from screw speed can add 5–15 °C depending on back pressure and screw condition.
The grade is not hydrolytically sensitive, so pre-drying is not routinely required; however, when cold pellets are transferred in an environment above 60% relative humidity, surface condensation can appear as splay, and a hot-air or desiccant hopper dryer at 80 °C for 2 h is sufficient. Extrusion lines running PP 506P at screw speeds of 60–80 rpm commonly use a breaker plate and screen pack with 80–120 mesh filtration to remove unmelted gels, although the exact melt-filtration configuration is determined by the die gap and line speed. On a 2.0 m wide coat-hanger die with a die gap between 1.8 mm and 2.5 mm, head pressure typically stabilises between 120 bar and 180 bar depending on throughput and melt temperature. A declining head pressure at constant screw speed and melt temperature can indicate melt-temperature drift or thermocouple fouling, while a rising head pressure above 200 bar may signal excessive filtration-pack loading or insufficient barrier-section melting. The screen pack is replaced when pressure differential across the pack exceeds 40–60 bar. Screw wear in the metering section reduces pumping efficiency; when an annual output drop greater than 5% occurs under identical barrel profiles, metering-screw refurbishment is typically required.
Plug-assisted thermoforming of PP 506P sheet requires sheet-surface temperatures between 155 °C and 170 °C measured by a calibrated infrared pyrometer. Set points below 150 °C produce incomplete draw around radii and elevated sidewall orientation, while temperatures above 175 °C generate edge sag and non-uniform wall thickness in female-mold configurations. Mold temperature is normally maintained between 20 °C and 60 °C; lower mold temperatures accelerate solidification and can freeze surface imperfections, whereas higher mold temperatures extend cycle time but reduce stress whitening at corner hinges. For shallow trays and lids with a draw ratio below 1.5:1, sheet gauges of 0.3–0.8 mm are common. For deeper containers with draw ratios above 2.0:1, the homopolymer’s lower melt elasticity relative to block-copolymer PP can cause web thinning; tooling designs with plug assist and zoned infrared heating compensate by redistributing material into the corner sections.
Aluminium plugs heated to 80–100 °C reduce plug marks and maintain wall-thickness uniformity in runs exceeding 20,000 cycles/day. Plug speed and pre-stretch pressure are set to avoid plug contact chilling; typical plug surface temperatures below 80 °C can create contact marks and increase localised draw-induced orientation. Infrared heating channel settings for PP 506P differ from amorphous resins such as PET or PS; homopolymer PP requires higher heat input in the peripheral zones because it is a semicrystalline polymer with a sharp melting range. The optical transition from opaque crystalline sheet to translucent melt occurs over a narrow temperature interval; pyrometer spotting should target the sheet centre, edges, and corner zones to maintain a temperature spread below 5 °C. Temperature spread above 8 °C results in uneven draw and post-forming part warpage. For semicrystalline PP, sheet preheating is commonly staged in a four-zone oven with a soak time of 20–40 s depending on caliper. Published data for maximum plug force limits specific to PP 506P is limited, so process confirmation depends on in-line wall-thickness gauging rather than laboratory melt-strength values.
PP 506P is differentiated from lower-melt-flow homopolymer grades primarily by its 6.0 g/10 min melt mass-flow rate. Homopolymers with MFR values ≤ 3.0 g/10 min develop higher die-head viscosity and can extrude sheet calipers above 2.5 mm with less sag, but they require higher melt temperatures or reduced screw speed, which lowers specific output per kilowatt and can increase residence-time degradation. Higher-flow homopolymers with MFR values ≥ 10 g/10 min reduce head pressure and improve thin-wall melt distribution, but their lower elastic recovery and faster sag onset narrow the processing window on conventional roll-stack lines. PP 506P therefore fits sheet calipers from 0.25 mm to 2.0 mm where sag resistance and output must be balanced.
Because PP 506P has no ethylene comonomer, its room-temperature notched Charpy impact strength is lower than block-copolymer PP grades containing 5–10 wt% ethylene content. The stiffness advantage is reflected in a higher tensile modulus than typical impact-copolymer PP at 1250 MPa under ISO 527-2:2012, whereas many impact-copolymer grades fall below 1000 MPa. This trade-off is significant for snap-fit lids and deli containers where closure force and dimensional stability matter more than low-temperature drop resistance. Homopolymer PP also has better solvent resistance but is more susceptible to oxidative embrittlement in outdoor exposure unless UV-stabilised. PP 506P intended for outdoor applications must be compounded with a hindered amine light stabiliser package; no outdoor weatherability claim applies to the unstabilised extrusion grade. When chilled-temperature impact strength below 0 °C must exceed 6 kJ/m² notched Charpy under ISO 179-1:2010, an impact-copolymer polypropylene is specified instead of PP 506P because ethylene-propylene rubber domains are required for low-temperature energy absorption. In comparison with higher-flow SABIC 500-series grades, PP 506P is the appropriate selection when extruded sheet caliper exceeds 1.2 mm and sag resistance is the limiting defect, whereas higher-flow grades are preferred for thin-wall injection-molded closures where filling pressure and cycle time control profitability.
Table 1 summarises the typical property set reported for SABIC PP 506P in product documentation. The values are not specification limits and may vary with additive package, pigmentation, and conversion conditions.
| Property | Test method | Typical value |
|---|---|---|
| Melt mass-flow rate, 230 °C/2.16 kg | ISO 1133-1:2022 | 6.0 g/10 min |
| Density | ISO 1183-1:2019 | 0.905 g/cm³ |
| Tensile stress at yield | ISO 527-2:2012 | 32 MPa |
| Tensile strain at yield | ISO 527-2:2012 | 8 % |
| Tensile modulus | ISO 527-2:2012 | 1250 MPa |
| Vicat softening temperature, A50 | ISO 306:2022 | 154 °C |
Mechanical values obtained under ISO 527-2:2012 are rate-dependent. The modulus and yield values are generated at a crosshead speed of 1 mm/min for modulus and 50 mm/min for yield, which may not represent high-speed thermoforming deformation at 10–100 s⁻¹. The Vicat A50 value of 154 °C under ISO 306:2022 is a short-term softening reference and should not be interpreted as a continuous service temperature. Published data for long-term heat aging of PP 506P at continuous temperatures above 90 °C is limited; therefore, continuous service above that threshold should be validated with oven-aging studies using the intended additive package. Specimen conditioning follows ISO 291 at 23 °C and 50% relative humidity for at least 40 h before testing. The tensile modulus is determined as the secant modulus between 0.05% and 0.25% strain under ISO 527-2:2012; it is sensitive to specimen thickness variation and void content in injection-moulded test plaques. High-speed tensile impact tests under ISO 8256 may be used for thermoformed article evaluation, but published PP 506P values are limited.
Food-contact compliance for PP 506P is not an unconditional property of the pellet but a function of the finished article, including masterbatch, processing aid, and tooling lubricant contributions. In the European Union, plastic food-contact materials are evaluated under Regulation (EU) No 10/2011, which sets an overall migration limit of 10 mg/dm² of food-contact surface. Final articles are tested with food simulants assigned according to Annex III of the regulation; for hydrophobic polypropylene, simulants such as 3% acetic acid, 10% ethanol, and olive oil or 95% ethanol as a substitute are applicable depending on the food type and contact conditions. Under United States requirements, the base olefin polymer may qualify for food-contact use under FDA 21 CFR 177.1520, provided the finished article meets the extraction and end-test specifications for the relevant conditions of use. REACH Regulation (EC) No 1907/2006 requires registration of the monomer and polymer substance within the European Economic Area. RoHS Directive 2011/65/EU restricts cadmium to 0.01 wt% and lead, mercury, and hexavalent chromium each to 0.1 wt% in homogeneous materials, although RoHS applies to electrical and electronic equipment and not to general packaging unless an OEM specification imposes it.
| Compliance area | Standard or regulation | Assessment scope |
|---|---|---|
| EU food contact | Regulation (EU) No 10/2011 | Overall migration limit 10 mg/dm²; final-article testing |
| US food contact | FDA 21 CFR 177.1520 | Olefin polymer; end-test requirements by condition of use |
| Chemical safety | REACH Regulation (EC) No 1907/2006 | Substance registration in EEA |
| Hazardous substances | RoHS Directive 2011/65/EU | Cd 0.01 wt%; Pb, Hg, Cr(VI) each 0.1 wt% |
Specific migration values for additives incorporated into PP 506P are not disclosed in a single product datasheet. When the final article contacts fatty foods or operates under hot-fill conditions above 70 °C, an additive migration package must be obtained from the converter or compounder before commercial use. Migration testing is especially relevant because polypropylene homopolymers may contain processing stabilisers and acid scavengers that are subject to specific migration limits in Annex II of Regulation (EU) No 10/2011. The use of certain clarifiers and nucleators alters crystallisation behaviour and may influence migration; a clarifier package used in PP 506P to improve translucency must be listed in the Union List of authorised substances and must not exceed its specific migration limit.
At melt temperatures above 250 °C, thermal-oxidative stability becomes the dominant process limit for PP 506P. Antioxidant additives are partially consumed during each heat history, and regrind levels above 30 wt% may reduce melt-strength retention in subsequent extrusion runs; converters running closed-loop scrap recovery should monitor the melt flow rate shift between virgin pellets and regrind-containing sheet. Incompatibility with amine-based chemical foaming agents can promote acid-base reactions and surface blush, so additive compatibility should be confirmed before such systems are introduced. When stored or conveyed at relative humidity above 60%, cold pellets may develop surface condensation that appears as splay on the sheet; however, because homopolymer polypropylene is not hydrolytically sensitive, drying is only required to remove surface water, not to prevent molecular-weight hydrolysis. The material is not recommended for autoclave sterilisation above 121 °C when dimensional stability is critical, because homopolymer PP may creep and shrink above its deflection temperature under load. For repeated microwave or hot-fill lidding above 100 °C, migration testing and thermal aging data specific to the final article are required. Long-term UV exposure without carbon black or hindered amine light stabiliser can lead to surface cracking and loss of impact; PP 506P is not inherently UV-stable. If outdoor service is specified, a UV-stabilised variant or a HALS/UV-absorber masterbatch must be incorporated before sheet extrusion. These boundaries define the practical operating window for PP 506P in extrusion and thermoforming; applications outside the stated conditions should be supported by targeted validation rather than extrapolation from general polypropylene data.
