| HS Code | 444077 |
| Density | 0.959 g/cm³ |
| Melt Index 190 C 2 16 Kg | 0.35 g/10 min |
| Tensile Strength At Yield | 27.6 MPa |
| Tensile Strength At Break | 33.8 MPa |
| Elongation At Break | >600% |
| Flexural Modulus | 1240 MPa |
| Environmental Stress Crack Resistance F50 100 Igepal | 1000 h |
| Vicat Softening Temperature | 127°C |
| Melting Temperature | 134°C |
| Crystallization Temperature | 116°C |
| Hardness Shore D | 65 |
| Thermal Conductivity | 0.45 W/m·K |
| Coefficient Of Linear Thermal Expansion | 1.2E-4 1/°C |
| Specific Heat | 1.9 J/g·°C |
| Water Absorption | <0.01% |
As an accredited Bayport Polymers (Baystar) HDPE SB1359NA factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Bayport Polymers (Baystar) HDPE SB1359NA is supplied in 25 kg polyethylene bags, 40 bags per pallet (1,000 kg net). |
| Container Loading (20′ FCL) | Bayport Polymers (Baystar) HDPE SB1359NA, 25 kg bags, palletized and stretch-wrapped, loaded into a 20′ FCL for ocean transport. |
| Shipping | Bayport Polymers (Baystar) HDPE SB1359NA is a non-hazardous polyethylene resin, typically shipped in 25 kg bags, 1,000 kg bulk bags, or bulk trucks/railcars. Store dry, clean, away from heat, sunlight, moisture, and contamination. No UN hazard class, placards, or special transport documentation required. Handle with standard good industrial hygiene practices. |
| Storage | Store Baystar HDPE SB1359NA in a cool, dry, well-ventilated area in original, closed packaging. Protect from direct sunlight, heat, moisture, and contamination. Keep away from ignition sources and strong oxidizers. Stack pallets securely to prevent collapse. Avoid damaging containers. Maintain clean, dry floors and good housekeeping. Use first-in, first-out stock rotation. Follow the supplier’s SDS and local storage regulations. |
| Shelf Life | Typically 12 months from manufacture when stored in original, unopened packaging under dry, cool conditions away from direct sunlight. |
For non-carbonated agrochemical and industrial-liquid transport packaging, conversion of Baystar HDPE SB1359NA is evaluated under the UN 3H1/Y certification chain of 49 CFR 178.605, 49 CFR 178.606, and 49 CFR 178.608, with additional modal compliance under ADR 6.1 and IMDG 4.1 for Packing Group II liquids. The standard formulation for 5 L to 20 L jerrycans is 95–100 wt% virgin resin, 0–3 wt% UV stabilizer masterbatch, 0–2 wt% color concentrate, and 10–20 wt% clean post-industrial regrind from the same UN-certified lot; regrind fractions above 20 wt% lower ESCR values measured by ASTM D1693-21 Condition B and require requalification for Packing Group II dangerous goods.
Extrusion blow molding on shuttle machines with 60–90 mm screws and 24:1–30:1 L/D uses barrel temperatures from 190 °C to 220 °C and a die zone held 10–15 °C above the barrel midpoint to control parison sag. Accumulator-head tooling with 0.8–1.5 mm die gap and 0.6–1.0 MPa blow air pressure produces containers above 5 L; parison programming removes 20–40% of body weight in shoulder and chime sections to avoid thin corners that reduce hydraulic burst pressure. Terminal articles are F-style jugs, 5 L and 10 L narrow-neck jerrycans, and 20 L tamper-evident containers for agrochemical concentrates, liquid dyes, and water-treatment flocculants.
Household and institutional cleaner bottles are converted from 70–100 wt% virgin HDPE SB1359NA, 0–20 wt% clean internal regrind, 0–5 wt% tint masterbatch, and 0–2 wt% processing aid; regrind addition above 20 wt% increases melt temperature fluctuation at the die and reduces ESCR measured by ASTM D1693-21 Condition A. Compliance is secured under REACH 1907/2006, with lot acceptance based on ASTM D1693-21 Condition A, ASTM D638-14 tensile yield, and ASTM D2463-15 drop impact.
Continuous shuttle blow molding is run with 45–80 mm extruders, 18:1–24:1 L/D, melt temperature 185–215 °C, mold temperature 10–20 °C, and blow air 0.5–0.9 MPa; die land temperatures are held within ±5 °C to avoid non-uniform wall thickness in the handle pinch-off. Hypochlorite-containing bleach formulations require lot qualification beyond standard data because oxidative attack on the weld line shortens functional life; published data for this specific configuration is limited, so internal comparison against virgin molded controls under identical mold temperature and part mass is used. Terminal articles are 250 mL trigger spray bottles, 500 mL hypochlorite bleach bottles, 1 L multi-purpose cleaner bottles, and 1.89 L/3.78 L detergent and fabric softener jugs.
Under USP <661.1> and Ph. Eur. 3.1.3, the extractables profile of pharmaceutical and veterinary solid-dose containers is controlled, provided the specific lot of Baystar HDPE SB1359NA has documented compliance with the application’s regulatory certificate; elemental impurities are assessed under ICH Q3D. Addition of 2–5 wt% titanium dioxide-containing white masterbatch to 95–98 wt% virgin SB1359NA is permitted only when the masterbatch carrier is a PE homopolymer listed in 21 CFR 177.1520. The downstream process is extrusion blow molding on single-station wheel machines with 30–60 mm screws and 18:1–24:1 L/D, melt temperature 190–210 °C, blow pressure 0.4–0.8 MPa, and 4–8 s blow time to prevent sidewall sink in multi-cavity tools. Terminal products include 25 mL veterinary dispensing bottles, 60 mL and 120 mL prescription ovals, and 250–500 mL tablet stock bottles with child-resistant closures. Published extraction profile data for this specific resin in multi-cavity pharmaceutical tooling is limited, so formal pharmacopeial qualification is required before commercial release.
Dry nutritional powder containers require organoleptic neutrality because off-taste migration from process lubricants or oxidized regrind disqualifies sensory acceptance under ASTM E460-21. Provided the specific lot of SB1359NA has documented food-contact compliance under FDA 21 CFR 177.1520(b) and EU 10/2011, the addition ratio is 95–98 wt% virgin resin and 2–5 wt% white masterbatch with a PE carrier listed in FDA 21 CFR 177.1520(b); no external mold release is permitted, and clean food-grade regrind is capped at 10 wt% when the package is destined for direct dry-food contact under Regulation (EC) 1935/2004. Extrusion blow molding uses polished and vented molds, 50–70 mm extruders with 20:1–26:1 L/D, melt temperature 180–210 °C, mold temperature 10–18 °C, and blow air 0.5–0.8 MPa; purging with virgin resin between flavor or tint changes is mandatory. Terminal articles are 250 g, 500 g, and 1 kg dry nutritional powder bottles subject to sensory panel release. Oxygen-barrier structures are outside the scope of this homopolymer grade.
| Downstream segment | Standard or test method | Controlled parameter or limit |
|---|---|---|
| UN-rated agrochemical and industrial packaging | 49 CFR 178.605, 49 CFR 178.606, 49 CFR 178.608 | Hydraulic pressure, stacking, drop at -18 °C |
| Detergent, bleach, and alkaline cleaner bottles | ASTM D1693-21, ASTM D638-14, ASTM D2463-15 | ESCR at 50 °C, tensile yield, drop impact |
| Pharmaceutical and veterinary solid-dose containers | USP <661.1>, Ph. Eur. 3.1.3, ICH Q3D | Aqueous extractables, elemental impurities |
| Dry nutritional powder packaging | FDA 21 CFR 177.1520(b), ASTM E460-21, EU 10/2011 | Organoleptic panel score, migration limits |
| Automotive aftermarket fluid bottles | ASTM D2463-15, ASTM D638-14, REACH 1907/2006 | Drop impact at -20 °C, tensile yield |
| Personal care and cosmetic bottles | EU 1223/2009, REACH 1907/2006 | Packaging material identity, extractables under cosmetic regulation |
For automotive aftermarket fluid bottles, cold-temperature drop impact at -20 °C evaluated by ASTM D2463-15 controls the acceptance of 100 wt% virgin SB1359NA modified with 2–3 wt% UV stabilizer masterbatch and 10–20 wt% clean regrind; compliance with REACH 1907/2006 and lot acceptance under ASTM D638-14 tensile yield are documented. Izod impact is not considered the primary lot criterion because blow molded sidewalls fail in a ductile-brittle transition mode not captured by notched specimens. Accumulator-head extrusion blow molding with 50–80 mm screws and 20:1–30:1 L/D uses melt temperature 190–220 °C, die gap 0.7–1.4 mm, mold temperature 10–20 °C, and blow pressure 0.6–1.0 MPa; parison programming allocates additional wall thickness to the bottom chimes and handle pinch-off because these regions carry hydrostatic head during freight vibration. Terminal products include 946 mL quart bottles, 3.78 L gallon jugs, and 7.57 L or 9.46 L narrow-neck containers for motor oil, windshield washer fluid, and non-corrosive coolant premix.
Personal care and cosmetic bottles are extrusion blow molded from 100 wt% HDPE SB1359NA with 1–3 wt% pearlescent or opaque masterbatch, processed at melt temperatures 185–205 °C in 40–60 mm shuttle machines with mold temperatures 10–18 °C and blow air pressure 0.4–0.8 MPa; applicable compliance is EU 1223/2009 and REACH 1907/2006, with terminal products being 50 mL travel bottles, 250 mL lotion bottles, 500 mL shampoo bottles, and 1 L body wash containers.
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Bayport Polymers (Baystar) HDPE SB1359NA is a bimodal high-density polyethylene extrusion blow molding resin supplied as natural pellets. The grade is manufactured using a dual-reactor slurry polymerization process that generates a tailored bimodal molecular weight distribution. This architecture is intended to preserve stiffness at a nominal density of 0.959 g/cm³ while providing sufficient environmental stress crack resistance for rigid packaging. The product is specified for small-to-medium blow molded containers—typically 100 mL to 5 L—used in household chemicals, personal care products, automotive fluids, and selected food-contact applications. The NA suffix denotes a natural color without a precompounded slip or antiblock package, so the converter retains independent control of color masterbatch and additive dosing.
At the classification level, the grade is positioned below the high-melt-flow injection molding range. Its melt flow rate is nominally 0.30 g/10 min at 190 °C and 2.16 kg in ASTM D1238-20 or ISO 1133-1:2022. This low melt flow rate indicates high molecular weight and high melt strength, which are necessary for parison hang time on shuttle, reciprocating-screw, and accumulator-head blow molding machines. The density is evaluated by ASTM D1505-18 or ISO 1183-1:2019 and is used by the producer as a lot-release specification. Lot-to-lot density variation should be tracked by the converter because a shift of 0.001 g/cm³ can alter top-load capacity in lightweight bottle designs. Published data for this specific configuration is limited, but standard HDPE blow molding practice treats density drift as a key cause of cap-seat diameter variation and paneling.
For SB1359NA, the recommended extruder melt temperature is 180 °C to 220 °C at the die. Single-screw extruders with an L/D of 24:1 to 30:1, barrier screw geometry, and a mixing section are typical. The rear barrel zone is commonly set 10–20 °C below the metering zone to avoid excessive screw torque while maintaining stable melt delivery. At die shear rates in the range of 500–1,500 s⁻¹, the low-molecular-weight fraction of the bimodal distribution reduces viscosity and improves surface finish. The high-molecular-weight tail maintains parison diameter during hang times of 2–8 s depending on shot size and die gap.
Processors should avoid melt temperatures below 175 °C; under melt-conditioned head tooling, this can cause shark-skin melt fracture and weak pinch-off welds. Above 230 °C the antioxidant package is consumed more rapidly and local oxidation can form gels, particularly after machine stoppage. The recommended die temperature is 190–210 °C, and mold surface temperature is typically 10–25 °C for dimensional stability. Blow air pressure of 0.4–0.8 MPa is generally sufficient for bottles up to 1 L; larger containers may require higher pressure and longer blow time.
Die swell for this density class is typically 30–50%. For a bottle with a target wall thickness of 0.6 mm, the die gap is often set 0.8–1.2 mm before parison programming. Accumulator-head machines should use parison programming with 10–30 points to compensate for sag and die swell. In shuttle machines, mold close speed and air pre-blow affect wall distribution. Field-scale failure modes on shuttle machines commonly appear as parison curl when die and mandrel temperatures diverge by more than 10 °C, and as pinch-off delamination when the mold parting line is maintained below 10 °C.
In blow molding operations, bulk moisture absorption is not the dominant process risk for HDPE. Surface condensation on cold pellets stored outdoors at relative humidity above 60% can enter the feed throat and produce parison bubbles or splay. If condensation is observed, drying at 60–80 °C for 1–2 h using dehumidified air is recommended. Regrind can be incorporated up to 30 wt% when it is clean, dry, and generated from the same natural resin; higher regrind fractions may reduce parison melt strength and increase lot-to-lot variability in bottle weight. Accumulator-head machines with extended hold-up volumes should use barrel temperature profiles no higher than necessary because the residence time distribution broadens at low purge rates.
The main difference between SB1359NA and conventional unimodal blow molding HDPE is the controlled molecular weight distribution produced by dual-reactor polymerization. In a unimodal resin, increasing density for higher top-load stiffness generally reduces ESCR because the higher crystalline fraction concentrates stress at tie-chain defects. In a bimodal resin, the high-molecular-weight component contributes tie molecules and chain entanglement, while the low-molecular-weight component provides flow. The practical outcome is that SB1359NA can be specified at higher density than many lower-density hexene or butene copolymer HDPE grades while retaining ESCR measured by ASTM D1693-15, Condition A, 100% Igepal, F50. Published data for this specific configuration is limited outside the producer’s technical data sheet, but comparative blow molding grade literature shows that bimodal HDPE resins can shift the stiffness–ESCR curve.
Compared with Baystar injection molding or high-speed thin-wall grades having melt flow rates from 4 g/10 min to 60 g/10 min, SB1359NA is too viscous for economical injection filling of thin sections. It is not a drop-in for injection molded caps, closures, or thin-wall tubs. It is also not designed for blown film, pipe, or rotational molding. Use in those processes falls outside the product’s validated processing window.
Values in Table 1 are provided for material selection and should not be used as specification limits. The certificate of analysis for each lot contains the lot-specific melt flow rate, density, and any customer-agreed properties.
| Property | Test method | Typical nominal value |
|---|---|---|
| Density | ASTM D1505-18 | 0.959 g/cm³ |
| Melt flow rate | ASTM D1238-20 / ISO 1133-1:2022 | 0.30 g/10 min |
| Tensile strength at yield | ASTM D638-22, Type IV, 50 mm/min | 28 MPa |
| Elongation at break | ASTM D638-22, Type IV, 50 mm/min | >800 % |
| Flexural modulus, 1% secant | ASTM D790-17 | 1,300 MPa |
| ESCR, F50, 100% Igepal | ASTM D1693-15 | 50 h |
| Vicat softening temperature, 10 N | ASTM D1525-17 | 128 °C |
| Brittleness temperature | ASTM D746-20 | <-75 °C |
| Hardness Shore D | ASTM D2240-15 | 64 dimensionless |
Above values are producer-published nominal values and may change without notice. They are reported on compression-molded or injection-molded specimens under laboratory conditions; part performance in a blown container must be verified with the final wall thickness, pinch-off design, and weight distribution.
The 0.959 g/cm³ density of SB1359NA increases top-load capacity but narrows the service envelope in contact with aggressive surface-active fluids. Stress-cracking agents such as concentrated nonionic surfactants, strong mineral acids, essential oils, or aromatic hydrocarbons can reduce the practical service life of high-density bottles. A lower-density hexene or octene copolymer HDPE with an ESCR value above 200 h under ASTM D1693-15 may be required for containers storing high-concentration detergents, solvent-based cleaners, or agricultural chemicals. The grade is also not intended for continuous use at temperatures above 60 °C under load, and hot-fill applications above 95 °C require migration and part stability testing because the FDA food-contact status is end-use-condition dependent.
For food-contact suitability, the grade is anchored to FDA 21 CFR 177.1520(c) for olefin polymers and to EU Regulation (EC) No 10/2011 with its overall migration limit of 10 mg/dm². The natural grade contains no intentionally added lead, cadmium, mercury, chromium(VI), PBB, or PBDE and is not classified as hazardous under CLP. The resin is supplied with a safety data sheet and does not require special temperature-controlled transport, but silos and hoppers should be purged with dry air to prevent condensation. Table 2 summarizes the regulatory framework.
| Regulatory reference | Material scope | Status |
|---|---|---|
| FDA 21 CFR 177.1520(c) | Olefin polymers for food-contact articles | Compliant subject to end-use test conditions |
| EU Regulation (EC) No 10/2011 | Plastic materials and articles intended to come into contact with food | Overall migration limit 10 mg/dm² |
| REACH Regulation (EC) No 1907/2006 | Registration, evaluation, authorization, and restriction of chemicals | No SVHC above 0.1 wt% |
| RoHS Directive 2011/65/EU | Restriction of hazardous substances in electrical and electronic equipment | No intentionally added Pb, Hg, Cd, Cr(VI), PBB, PBDE |
| GHS/CLP | Classification, labeling, and packaging | Not classified as hazardous polymer; dust explosion risk applies to fines |
Within the operational envelope, SB1359NA imposes specific handling boundaries. No release into drains or waterways as a solid; pellet handling requires grounding and inert gas for pneumatic conveying fines. The natural grade has no UV stabilizer; outdoor storage of finished articles is limited unless a suitable UV masterbatch is added. Drying should occur only when surface condensation is present, because prolonged drying at temperatures above 80 °C can produce pellet deformation and feed throat bridging in hot ambient plants.
