| HS Code | 651539 |
| Material | Polypropylene PP HD601CF |
| Type | Homopolymer |
| Density | 0.91 g/cm³ |
| Melt Flow Rate 230 C 2 16kg | 60 g/10min |
| Tensile Strength At Yield | 37 MPa |
| Elongation At Break | 10% |
| Flexural Modulus | 1700 MPa |
| Izod Impact Strength 23 C | 30 J/m |
| Heat Deflection Temperature 0 45 Mpa | 120 °C |
| Vicat Softening Temperature | 155 °C |
| Melting Temperature | 165 °C |
| Rockwell Hardness | R-110 |
As an accredited Polypropylene PP HD601CF factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Polypropylene PP HD601CF is supplied in 25 kg woven polypropylene bags, heat-sealed, moisture-proof, and tamper-evident for safe handling. |
| Container Loading (20′ FCL) | Load 20′ FCL of Polypropylene PP HD601CF, packed in 25kg bags, palletized, with proper ventilation and securing for safe transport. |
| Shipping | Polypropylene PP HD601CF ships as non-hazardous resin in 25 kg woven PP bags, bulk bags, or rail hoppers. Protect from moisture, direct sunlight, and excessive heat. Keep containers sealed and store in a dry, ventilated area. No special dangerous-goods labeling required, but handle with standard industrial care. |
| Storage | Store Polypropylene PP HD601CF in a cool, dry, well-ventilated area, away from direct sunlight, UV radiation, and heat sources. Keep containers sealed to prevent moisture absorption and contamination. Avoid exposure to oxidizing materials. Ideal temperature is below 25°C. Under proper conditions, shelf life is generally 12 months. |
| Shelf Life | Store in a cool, dry area away from direct sunlight. Shelf life is typically 12 months from manufacture date. |
In high-output thin-wall food packaging, HD601CF is metered directly into high-speed injection moulding cells with hot-runner manifold feeds and nominal wall thickness between 0.35 mm and 0.50 mm. The nozzle melt temperature is held at 230–250°C, and the mould circuit is run at 15–40°C with turbulent-flow water; excursions above 260°C accelerate oxidative chain scission in the plasticating unit and appear as flow fronts or yellowing on natural or white parts. Hold pressure is maintained at 30–50 MPa hydraulic, and the non-return valve is specified with radial clearance ≤0.03 mm because larger clearances produce cushion drift and cavity-weight scatter across 16- to 32-cavity stacks. The let-down formulation is 100 parts HD601CF with 1.5–3.0 wt% PP-compatible colour masterbatch, 0.5–1.5 wt% slip/antistatic combination masterbatch, and up to 20 wt% clean internal regrind; regrind above 20 wt% reduces melt-flow consistency and is not appropriate for food-contact wall thickness below 0.45 mm. Compliance is assessed under EU Regulation (EC) No 10/2011 as amended by Regulation (EU) 2020/1245, with overall migration tested to EN 1186-1:2002 at 10 mg/dm², and FDA 21 CFR 177.1520 for olefin polymers. Terminal articles produced under this configuration include dairy cups, margarine tubs, deli containers, and freezer-grade lids with integrally moulded hinges.
Closure manufacture using HD601CF imposes a narrow balance between low removal torque and sufficient tamper-band bridge integrity. The compound is proportioned at 100 parts HD601CF, 1.0–2.0 wt% erucamide/oleamide slip masterbatch, 1.5–3.0 wt% colour masterbatch, and up to 15 wt% clean closed-loop regrind; slip loading below 1.0 wt% produces ejection-squeal and collar scuffing on 32- to 64-cavity stack moulds, whereas slip loading above 2.0 wt% creates organoleptic risk in fatty-food contact and requires sensory validation. Production is run on hot-runner stack moulds with manifold temperature 235–255°C, nozzle melt temperature 230–250°C, and mould temperature 15–30°C. The sealing-ring wall of 1.2–2.0 mm is filled within 0.15–0.35 s, followed by holding pressure at 60–80% of peak injection pressure and cooling time of 6–12 s. Compliance is established on the finished closure under FDA 21 CFR 177.1520 and EU Regulation (EC) No 10/2011; liner-free closure systems require additional seal-integrity testing on a torque meter calibrated to 0.01 N·m. Terminal products are non-carbonated beverage closures, dairy caps, personal care flip-top closures, and hinged dispensing caps.
High-stiffness houseware articles such as storage boxes, drawer dividers, and stackable institutional containers are moulded from HD601CF on conventional two-platen injection presses. The material is processed at 100 parts HD601CF with 2–4 wt% masterbatch and, for UV-exposed outdoor storage, 0.2–0.5 wt% UV stabilizer masterbatch. No pre-drying is required when the granulate remains in sealed packaging below 60% RH; open storage in higher humidity can produce surface splay on thick bosses and should be corrected by drying at 80°C for 2–3 h. Melt temperature is set at 220–250°C, mould temperature at 10–40°C, and hold pressure at 25–40 MPa, with clamp force selected between 2,000 kN and 12,000 kN according to projected area. Compliance for non-food housewares is governed by REACH Regulation (EC) No 1907/2006 Article 33; food-contact storage containers are assessed under EU Regulation (EC) No 10/2011. Terminal types are storage boxes, drawer systems, transport totes, and hangers.
Unmodified HD601CF is not a flame-retardant grade; therefore, small appliance structural parts moulded from it are limited to non-contact housings, brackets, and cable management components where the part is classified no higher than UL 94 HB. The formulation is 100 parts HD601CF, 2–4 wt% colour masterbatch, and 0.2–0.5 wt% antistatic masterbatch when dust attraction on vacuum cleaner components must be controlled. Processing uses nozzle melt temperature 230–250°C, mould temperature 20–50°C, and injection speed sufficient to prevent hesitation marks in ribs and snap-fit details. Compliance is evaluated under REACH Regulation (EC) No 1907/2006, RoHS Directive 2011/65/EU, and IEC 60695-2-11:2021 only where the finished enclosure is subject to glow-wire testing; for parts requiring 650°C GWIT, HD601CF requires either a thicker cross-section with verified glow-wire performance or substitution with a flame-retardant compound. Terminal components include vacuum cleaner wheel housings, cordless appliance motor shrouds, small appliance cable brackets, and air-outlet deflection louvers.
A compliance matrix for the five segments is provided below.
| Application segment | Standard or regulation | Test method or clause | Boundary condition |
|---|---|---|---|
| Thin-wall food packaging | EU Reg (EC) No 10/2011; FDA 21 CFR 177.1520 | EN 1186-1:2002 | Overall migration ≤10 mg/dm² |
| Closures | EU Reg (EC) No 10/2011; FDA 21 CFR 177.1520 | Finished closure seal-integrity test | Slip masterbatch ≤2.0 wt% in fatty-food contact |
| Housewares | REACH Article 33; EU Reg 10/2011 if food contact | SVHC declaration | 0.1% w/w SVHC threshold |
| Appliance components | REACH; RoHS; IEC 60695-2-11:2021 | Glow-wire test | Unmodified HD601CF is not FR; verify 650°C GWIT |
| Mineral-filled compounding | REACH; RoHS; ISO 19069-2:2016 | Capillary rheometry | Regrind limited to 10–15 wt% |
Compounding HD601CF with platy mineral fillers is performed on a co-rotating twin-screw extruder with an L/D ratio of 40:1 and side feeding at barrel zone 5–6. The base formulation is 20–30 wt% talc or 20–40 wt% calcium carbonate fed downstream, with 0.1–0.3 wt% hindered phenolic antioxidant and 0.1–0.2 wt% acid scavenger added in the premix. Barrel temperatures are profiled from 190°C at zone 1 to 230°C at the die, screw speed is set at 300–600 rpm, and melt temperature measured at the die plate does not exceed 240°C. The resulting filled pellets are then injection moulded in a second heat history, so regrind is limited to 10–15 wt% to avoid excessive filler attrition and melt-flow drift. Compliance for the compounded material follows REACH Regulation (EC) No 1907/2006 and RoHS Directive 2011/65/EU; filled component validation may use ISO 19069-2:2016 for polypropylene moulding materials. Published data for HD601CF in filled systems is limited; therefore, compound viscosity should be confirmed by capillary rheometry before converting. Terminal products are talc-filled PP pellets for appliance brackets, automotive interior carrier frames, and consumer non-electrical housings produced by downstream converters.
Competitive Polypropylene PP HD601CF prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8618136850665 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8618136850665
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Polypropylene PP HD601CF is a controlled-rheology polypropylene homopolymer supplied as pelletized feedstock for injection moulding of thin-wall closures, caps, overcaps, and small-diameter packaging components. The designation identifies a high-stiffness, low-migration resin in which the molecular weight distribution is narrowed relative to conventional high-flow homopolymers of equivalent density. Producer technical literature lists a melt mass-flow rate of 16 g/10 min at 230 °C under 2.16 kg load according to ISO 1133-1 and a density of 0.905 g/cm³ according to ISO 1183-1. The homopolymer backbone is not ethylene-modified in the reactor, so the grade does not provide the low-temperature impact toughness of elastomer-modified impact copolymers or the optical clarity and seal-initiation behaviour of propylene-ethylene random copolymers.
The values below are typical from producer literature and are not dual-release specifications. Converters should obtain the current technical data sheet for the specific lot and verify critical properties against the application drawing, especially where the closure is subjected to elevated top load, strip torque, or hot-fill temperatures.
| Property | Typical value | Test method |
|---|---|---|
| Melt mass-flow rate, 230 °C / 2.16 kg | 16 g/10 min | ISO 1133-1 |
| Density | 0.905 g/cm³ | ISO 1183-1 |
| Tensile modulus, 1 mm/min | 1550 MPa | ISO 527-2 |
| Tensile yield stress | 34 MPa | ISO 527-2 |
| Tensile strain at yield | 8 % | ISO 527-2 |
| Charpy notched impact strength, 23 °C | 4.0 kJ/m² | ISO 179-1/1eA |
| Charpy notched impact strength, -20 °C | 2.0 kJ/m² | ISO 179-1/1eA |
| Heat deflection temperature, 0.45 MPa | 93 °C | ISO 75-2 |
| Vicat softening temperature, A50 | 154 °C | ISO 306 |
The tensile modulus of 1550 MPa is high for an unfilled injection-moulding polypropylene and supports thin-wall section stiffness without glass fibre or mineral reinforcement. The Vicat softening temperature of 154 °C is relevant for hot-fill closure applications where the cap must resist deformation during pasteurisation or warm-fill capping. The -20 °C Charpy value remains below impact-copolymer levels, so the grade is normally restricted to applications in which the closure is not subjected to severe sub-zero impact.
Melt temperature should be held between 230 °C and 250 °C, with a maximum of 260 °C. Barrel zones are typically set with a flat to slightly reverse profile to limit shear heating, and screw recovery speed is kept moderate. On a 35 mm barrier screw with L/D 20:1 to 24:1, screw speeds above 150 rpm can raise melt temperature and degrade the controlled-rheology distribution. Mould temperature is usually maintained between 10 °C and 40 °C; lower mould temperatures reduce cycle time but may increase weld-line visibility in living-hinge overcaps and produce higher residual stress in snap-fit features. A cushion of 3 mm to 5 mm and a screw-position transfer from injection to hold pressure are used on high-cavitation tooling to control cavity packing. Back pressure is kept low, typically 0.5 MPa to 1.5 MPa, to limit uncontrolled vis-breaking and melt-temperature rise during plastication.
Gate design and venting are critical in multi-cavity closure tools. Published production data for this specific grade under high-speed closure tooling are limited, but class-level experience with controlled-rheology PP homopolymers indicates that cavity-to-cavity weight variation is minimised when the hot-runner balance is verified by short-shot progression and when vents are sized to prevent air compression at the end of flow. Mould shrinkage measured according to ISO 294-4 typically falls in the range of 1.0 % to 1.4 % for unfilled PP homopolymer closures, depending on wall thickness, gate freeze time, and packing intensity. Shrinkage anisotropy between flow and cross-flow directions must be accounted for in cap-thread ovality and tamper-band dimensions.
At melt temperatures above 260 °C or barrel residence times beyond 5 min, thermo-oxidative chain scission can shift the melt mass-flow rate upward and alter screw recovery, cushion stability, and cap stripping torque. The stabiliser package is designed for repeated processing under short residence times, but it is not a substitute for thermal abuse or for extrusion-grade long-heat histories. Pre-drying is not required if pellets are stored in sealed hoppers below 60 % RH; otherwise drying at 80 °C for 2 h to 4 h in a desiccant dryer prevents splay and screw slip from surface moisture.
HD601CF belongs to the homopolymer class, and material substitution should be based on ISO 527-2 and ISO 179-1 data rather than nominal melt flow rate alone. Compared with propylene-ethylene random copolymers of similar MFR, HD601CF exhibits higher tensile modulus and heat deflection temperature but lower notched impact strength at 0 °C and below, and higher haze in transparent or translucent articles. Random copolymers are preferred when seal initiation below 120 °C, contact clarity, or low-temperature drop performance is required. HD601CF is preferred when removal torque, top-load retention, and dimensional stability at warm-fill temperatures are controlling design variables.
Compared with elastomer-modified impact copolymers, HD601CF cannot match Charpy notched impact values of 8 kJ/m² to 15 kJ/m² at -20 °C, so impact-copolymer grades remain necessary for freezer applications, pails, crates, and drop-resistant industrial closures. Compared with broad-MWD homopolymers of equivalent nominal MFR, the controlled-rheology structure of HD601CF typically gives more uniform filling in thin-wall tools, lower melt elasticity, and reduced tendency to accumulate plate-out on vent surfaces. These differences are not unique to HD601CF but follow from the controlled-rheology class; published grade-specific data for every comparative configuration should be requested from the producer before switching.
Food-contact assessment is conducted on the moulded article, not on the pellet alone. Polypropylene homopolymer grades of this compositional class are generally suitable for compliance with FDA 21 CFR 177.1520 for olefin polymers in food-contact use and with EU Regulation (EU) No 10/2011 subject to the overall migration limit of 10 mg/dm² for plastic materials intended to contact food. Electrical and electronic applications require verification against RoHS 2011/65/EU restricted substances; polypropylene resins typically fall below the specified lead and cadmium thresholds, but the final formulation with colorants, antistatic agents, or processing aids must be assessed separately.
| Regulatory domain | Standard or clause | Typical evaluation |
|---|---|---|
| Food contact, United States | FDA 21 CFR 177.1520 | Olefin polymer clearance for food-contact use |
| Food contact, European Union | EU Regulation (EU) No 10/2011 | Overall migration limit 10 mg/dm² |
| Restricted substances, European Union | RoHS 2011/65/EU | Lead, cadmium, mercury, hexavalent chromium, PBB and PBDE limits |
| Chemical registration, European Union | REACH 1907/2006/EC | Substance registration and SVHC screening |
The low-extractables profile is relevant to organoleptic-sensitive closures for bottled water, dairy, and beverage concentrates. Converters should request lot-specific certificates and conduct taint or odour evaluation under EN 1230-1 or the producer’s sensory protocol. Colorant carriers, external lubricants, and mould-release agents can alter organoleptic performance and demoulding behaviour; the product should not be combined with additives that are not approved for the intended food-contact use. The grade is not designed for continuous exposure to strong oxidising acids or chlorinated solvents, and outdoor weathering resistance requires additional UV stabilisation if the closure is used in exterior service.
