| HS Code | 609805 |
| Density | 0.958 g/cm³ |
| Melt Flow Rate 190 C 2 16 Kg | 0.25 g/10 min |
| Tensile Modulus | 1300 MPa |
| Tensile Stress At Yield | 28 MPa |
| Tensile Strain At Yield | 9% |
| Tensile Strain At Break | >600% |
| Charpy Notched Impact Strength 23 C | 20 kJ/m² |
| Charpy Notched Impact Strength 30 C | 8 kJ/m² |
| Environmental Stress Cracking Resistance Escr | >1000 h |
| Vicat Softening Temperature | 78°C |
| Melting Temperature | 134°C |
| Water Absorption | <0.01% |
| Hardness Shore D | 60 |
As an accredited Borealis HDPE MB6562 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Borealis HDPE MB6562 is packaged in 25 kg polyethylene bags or 1,250 kg octabins for industrial use. |
| Container Loading (20′ FCL) | Container loading (20′ FCL): Borealis HDPE MB6562 in 25 kg bags, palletized, shrink-wrapped, securely stowed for ocean transport. |
| Shipping | Borealis HDPE MB6562 is transported as non-hazardous polyethylene pellets in 25 kg bags, octabins, or bulk containers using standard industrial packaging. Keep dry and protect from heat, UV, moisture, and contamination. Not classified as dangerous goods for road, rail, sea, or air freight. Follow supplier handling and storage instructions. |
| Storage | Store Borealis HDPE MB6562 in a cool, dry, well-ventilated area away from direct sunlight, heat, flames, and strong oxidizers. Keep original packaging sealed to prevent moisture, dust, and contamination. Stack pallets securely to avoid deformation and ensure stock rotation. Maintain good housekeeping; follow manufacturer and local regulations. Avoid prolonged outdoor exposure or storage near food and drinking water. |
| Shelf Life | Borealis HDPE MB6562 has a shelf life of two years when stored dry, cool, and protected from direct sunlight in original packaging. |
In monolayer household and industrial chemical bottle moulding, Borealis HDPE MB6562 is handled as a high-molecular-weight blow moulding HDPE with density in the 0.950–0.958 g/cm³ range and melt flow rate at 190 °C under 2.16 kg below 1.0 g/10 min measured under ISO 1133-1:2022 and ISO 1183-1:2019; continuous shuttle blow moulding machines equipped with grooved feed extruders of 60–90 mm screw diameter and 24:1–30:1 L/D ratios are configured around the melt strength of the resin rather than around a low-pressure regime. The dry blend is composed of 85–100 parts virgin MB6562 by total polymer weight, 0–15 parts clean in-house regrind, 1–4 parts colour concentrate per hundred polymer, and 0.05–0.15 parts fluoroelastomer processing aid per hundred polymer; regrind addition above 20 parts is avoided when the destination bottle is filled with sodium hypochlorite because the melt-phase gel count increases and the pinch-off weld becomes more affected by low-molecular-weight fractions. Extruder thermal settings are maintained at 180–190 °C in the feed zone, 195–205 °C in the compression zone, and 200–210 °C at the die head, while the melt temperature is held at 190–205 °C to limit thermal degradation of the resin and to keep parison sag within the blowing window. Mould temperatures of 10–30 °C and blow air pressure of 0.6–0.8 MPa are used to set surface finish and cooling time; wall thickness for a 1 L bottle is typically held between 0.6 mm and 1.0 mm at the sidewall. Regulatory documentation on this line references Directive 94/62/EC, Regulation (EC) No 1907/2006 for REACH and SVHC clearance below 0.1 wt%, and Regulation (EC) No 1272/2008 for CLP-compliant packaging of classified liquid products. Finished article types include 250 mL to 5 L bottles for bleach, disinfectants, descaling agents, hard-surface cleaners, and agrochemical concentrates.
The critical failure mode in UN-certified jerrican production is not burst pressure but pinch-off weld integrity and environmental stress-crack resistance at the tail-flash junction after filling with aggressive liquid formulations. Borealis HDPE MB6562 is processed on accumulator blow moulding machines with 70–90 mm extruder screw diameter, 24:1–30:1 L/D ratio, and a shot capacity matched to a jerrican weight of 1.6–2.4 kg; the parison is programmed at 10–50 points to redistribute material toward the handle root corners and base chime, where wall thickness must remain above 1.8 mm to survive drop testing. The blend uses 80–100 parts virgin MB6562, 0–20 parts clean internal regrind, 0.1–0.3 parts hindered-amine light stabiliser per hundred polymer for outdoor storage, and 0.05–0.1 parts antioxidant per hundred polymer. Extruder zone temperatures are set from 180 °C in the feed zone to 200–215 °C at the die head, with melt temperature limited to 210 °C maximum to avoid die swell reduction and odour generation; mould temperature of 8–20 °C and blow air of 0.6–0.9 MPa deliver cycle times of 120–180 s for a 20–30 L container. Drop-test performance is validated under Chapter 6.1 of the UN Model Regulations for non-removable head packages, with Packing Group II drop height of 1.2 m and leakproofness testing under 30 kPa for the specific closure configuration. If the jerrican is shipped under ADR, RID, or IMDG, the certificate is issued only after the complete package, including cap and gasket, passes conditioning and stack tests; internal laboratory controls use ASTM D1693-21 ESCR in 10% Igepal at 50 °C to screen incoming batches. End products include 20 L, 25 L, and 30 L jerricans for agrochemicals, water-treatment chemicals, technical solvents, and dangerous goods liquid preparations.
Lubricant packaging operations running rotary wheel blow moulders with 12–20 stations use 95–100 parts virgin MB6562, 0–3 parts colour concentrate, 0.1–0.3 parts UV stabiliser per hundred polymer, and 0.02–0.1 parts antistatic concentrate per hundred polymer; melt temperature is held at 190–210 °C, mould temperature at 8–15 °C, blow air at 0.6–0.8 MPa, and wall thickness at 0.7–1.5 mm. The applicable compliance set comprises REACH (1907/2006), CLP (1272/2008), and Directive 94/62/EC; terminal products are 1 L, 4 L, and 5 L bottles for engine oil, hydraulic fluids, gear lubricants, and industrial oil premixes.
In three-layer coextrusion lines for food sauces and edible oil bottles, the thermal profile differs from monolayer machinery because the HDPE layers can be run lower than the barrier core while the tie resin and EVOH must not be exposed to excessive residence time. The layer distribution is 90–95 wt% combined HDPE, 2–5 wt% EVOH, and 1–3 wt% adhesive tie resin by total bottle weight; within the HDPE fraction, the outer skin is 15–25 wt%, the core is 50–70 wt%, and the inner food-contact skin is 10–20 wt%. Regrind is constrained to 0–25 wt% of the core layer and is excluded from the food-contact skin unless migration testing under the applicable regulation has been completed. The HDPE extruders are set to 190–210 °C melt temperature, the tie resin to 200–225 °C, and the EVOH to 210–230 °C to match viscosity and prevent interfacial instability at the die lip; the coextrusion die is maintained at 200–220 °C with melt pressure below 35 MPa. Bottles are blown at 0.6–0.8 MPa blow air and mould temperatures of 10–25 °C, with sidewall thickness controlled between 0.5 mm and 1.2 mm. Compliance for the food-contact condition is anchored to Commission Regulation (EU) No 10/2011 with overall migration below 10 mg/dm², US FDA 21 CFR 177.1520 for olefin polymers, and Regulation (EC) No 1935/2004, Article 3, for good manufacturing practice in food contact materials. Terminal packaged products include 0.25–2 L bottles for ketchup, mayonnaise, edible oils, salad dressings, and squeezable condiments.
At detergent filling plants requiring top-load values above 350 N at a 1 L bottle size, the monolayer container is produced with 15–30 wt% post-consumer recycled HDPE while virgin MB6562 supplies the melt rheology and weld strength that the PCR fraction cannot maintain consistently. The formulation is 70–85 parts virgin MB6562, 15–30 parts hot-washed PCR, 1–3 parts compatibiliser per hundred polymer, and 1–4 parts colour masterbatch; batch-to-batch PCR melt-flow variation requires closed-loop parison length correction on shuttle machines to hold bottle weight within ±1.5 g. Processing on vented extruders with 25:1–30:1 L/D ratios keeps the melt temperature at 185–205 °C and uses a screen pack of 60–80 mesh to capture gels and polypropylene contamination; die head temperature is 195–210 °C, mould temperature 10–30 °C, and blow air 0.6–0.8 MPa. Top-load capacity is measured according to ASTM D2659-16, with failure at the sidewall crease or pinch-off observed when the PCR content exceeds 30 wt% without compatibiliser. The regulatory file for non-food detergent packaging references Directive 94/62/EC and Regulation (EC) No 1907/2006; for food-grade recycled content, Regulation (EU) 2022/1616 would govern recycled plastic suitability. Terminal packages include 0.5–5 L laundry detergent, fabric softener, and dishwashing liquid bottles designed for high-speed fill and cap torque retention.
The automotive fluid packaging line is typically a suction blow moulding cell producing complex three-dimensional geometries with wall thickness at outer bends controlled not by parison programming alone but by mould travel speed and pinch-off tooling. Borealis HDPE MB6562 is selected for windshield washer, coolant, and diesel exhaust fluid containers because the resin maintains environmental stress-crack resistance when exposed to low concentrations of alcohol, glycol, and urea at elevated engine-bay temperatures. The formulation uses 90–100 parts virgin MB6562, 0–10 parts clean internal regrind, 0.2–0.5 parts long-term heat stabiliser per hundred polymer, and 0.1–0.3 parts UV stabiliser per hundred polymer; carbon black masterbatch is added at 1–3 parts per hundred polymer only where UV-stable black containers are specified. Extruder settings for suction blow moulding are 180–195 °C feed, 195–210 °C compression, and 200–215 °C die, with melt temperature limited to 210 °C; mould temperature is 10–25 °C and blow air is 0.6–0.9 MPa. Component validation includes ASTM D1693-21 ESCR in 10% Igepal solution at 50 °C, ISO 527-2:2012 tensile modulus, and ISO 179-1:2010 Charpy impact at 23 °C; automotive supply-chain documentation additionally references REACH (1907/2006) and CLP (1272/2008). Terminal components include 1–10 L windshield washer fluid reservoirs, coolant overflow bottles, and diesel exhaust fluid containers with complex neck and bracket geometries.
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Borealis HDPE MB6562 is a bimodal high-density polyethylene resin supplied as lenticular pellets for injection-moulded thin-wall packaging, closures, and general-purpose rigid articles. The grade is produced by Borealis with bimodal molecular weight control and is positioned for applications with wall sections below 1.5 mm where conventional HDPE grades require excessive injection pressure or develop sink marks. The polymer’s comonomer placement and molecular weight distribution are designed to balance stiffness, flow length, and environmental stress cracking resistance. Compliance for food-contact applications must be verified against the current producer certificate, EU Regulation 10/2011, and FDA 21 CFR §177.1520; the polymer is not a direct food additive and migration testing is the responsibility of the converter.
The producer’s technical datasheet lists typical values rather than specification limits. Lot-to-lot variation is controlled through the certificate of analysis. Melt flow rate testing follows ISO 1133-1:2022 using a 2.16 kg load at 190 °C. Density is measured after 24 h conditioning at 23 °C according to ISO 1183-1:2019. Tensile modulus is measured at 1 mm/min according to ISO 527-2:2012, while flexural modulus follows ISO 178:2019. Charpy notched impact strength is determined on Type 1eA specimens according to ISO 179-1/1eA:2010.
| Property | Test method | Representative range |
|---|---|---|
| Melt flow rate, 190 °C/2.16 kg | ISO 1133-1:2022 | 1.9–2.2 g/10 min |
| Density, 23 °C | ISO 1183-1:2019 | 0.955–0.958 g/cm³ |
| Tensile modulus, 1 mm/min | ISO 527-2:2012 | 950–1100 MPa |
| Tensile stress at yield, 50 mm/min | ISO 527-2:2012 | 25–28 MPa |
| Flexural modulus | ISO 178:2019 | 1000–1200 MPa |
| Charpy notched impact strength, 23 °C | ISO 179-1/1eA:2010 | 7–12 kJ/m² |
| Vicat softening temperature A/50 | ISO 306:2022 | 126–129 °C |
The representative ranges should be used for preliminary screening only. Release properties are governed by the certificate of analysis, and comparative testing between suppliers requires identical specimen geometry and conditioning.
On production-scale injection moulding lines with hot-runner tooling, the practical melt temperature window is 200–240 °C. Barrel temperatures should be profiled from 190 °C in the feed zone to 220 °C at the nozzle; melt temperatures above 260 °C or residence times beyond 10 minutes may initiate chain scission and produce oxidative degradation products detectable as odour or discoloration. The mould temperature for thin-wall closures is generally held between 10 °C and 30 °C; lower temperatures reduce cycle time but increase internal stress and warp. Injection velocity should be set to fill 90–95 % of the cavity within 0.1–0.3 s, with holding pressure and time adjusted to avoid gate sink and part mass variation. Standard polyolefin screws with L/D ratios of 20:1 to 24:1 and compression ratios of 2.5:1 to 3.5:1 are acceptable; high-cavitation stack moulds benefit from valve-gated hot runners and balanced melt distribution. Published data for this specific configuration is limited; process parameters should be established through iterative mould filling studies and in-mould pressure monitoring.
Residence time distribution in the hot-runner system should be mapped when changing from coloured grades to natural MB6562. Dead spots in manifold channels or poorly flushed drop regions can release degraded material intermittently into the part stream. Purging with a polyethylene-based purge compound at 240 °C for at least 20 minutes is typical after material or colour changes; shorter purging may leave contamination in low-flow zones of the manifold. Pressure transducers at each drop should record a stable profile; deviations above ±5 % indicate partial blockage or heater failure.
When MB6562 is used in high-cavitation stack moulds producing closures with 0.6–1.2 mm nominal wall thickness, the lower apparent melt viscosity relative to general-purpose HDPE reduces dynamic pressure loss across the runner and gate. This allows filling at lower hydraulic pressures, which can reduce flash formation and extend tool life. However, the grade’s fast crystallisation rate may shorten gate freeze time; gates must be sized to prevent premature solidification before hold pressure is complete. Hot-runner manifold and drop temperatures should be maintained with ±5 °C control to avoid local melt-temperature variation. Shear-rate calculations at the gate should not exceed the region of pronounced shear thinning; excessive shear heating introduces residual stress and may shift part dimensions after demoulding.
Capillary rheometry at 190 °C, 210 °C, and 230 °C can be used to generate shear-viscosity curves for process simulation. The melt exhibits non-Newtonian shear thinning at apparent shear rates above 10 s⁻¹, which is typical for linear HDPE. For gate design, apparent viscosity should be evaluated at the shear rate estimated from the injection velocity. If the gate shear rate exceeds 100 000 s⁻¹, melt fracture or shear heating may become significant; wall-slip corrections are not usually required for polyethylene but may be considered in micro-features. Process simulation should be validated with in-mould pressure data rather than relying solely on laboratory capillary viscosity values.
Melt pressure at transfer should be recorded as a reference; for thin-wall packaging, a transfer pressure of 60–100 MPa is common but depends on tool design. Part mass variation across cavities should be held below ±0.15 % for tight sealing applications; cavity-to-cavity variation above this threshold may indicate hot-runner imbalance, venting differences, or inconsistent cooling.
Because MB6562 is a high-crystallinity polyethylene, mould shrinkage in linear dimensions is typically on the order of 1.5–2.5 %, depending on part thickness, gate location, and cooling rate. Post-moulding crystallinity continues for up to 48 h, and dimensional measurements should be taken after at least 24 h conditioning at 23 °C and 50 % relative humidity. Warpage in thin-wall closures often arises from differential cooling between cavity and core; core temperatures lower than 10 °C may increase thermal stress and produce ovality. Holding-pressure profiles that drop from 30–60 MPa peak pressure to a lower pack pressure can reduce sink without extending cycle time.
Closure tamper-evident bands require a minimum elongation at break to allow fold-over without stress whitening. The tensile strain at yield of MB6562 is lower than for linear low-density polyethylene, so hinge designs must avoid sharp flexural strain. Finite element analysis of the flexural hinge should use true stress-strain data at the intended service temperature rather than simple modulus comparisons.
Thermogravimetric analysis in nitrogen shows degradation onset above 300 °C, but oxidative degradation begins lower when oxygen is present in the hopper or hot-runner system. The practical upper processing temperature of 260 °C is set below the accelerated chain-scission threshold. At melt temperatures above 260 °C, colour shifts and a reduction in notched impact strength may appear within a few minutes. Oxygen ingress through poorly sealed feed zones or prolonged material hold-up in the barrel can generate carbonyl species that alter surface appearance and adhesion. The oxidation induction time measured at 200 °C according to ISO 11357-6:2018 may be used as a quality control indicator for incoming lots when long hold times are expected; published OIT values for this specific formulation are limited.
Although HDPE is non-hygroscopic, condensation on cold pellet surfaces or storage in outdoor silos can introduce surface moisture. Moisture entrained in the feed zone can cause silver streaks, splay, or inconsistent plastication. Pre-drying at 80 °C for 2–4 h in a desiccant or hot-air dryer returns moisture content to below 0.01 wt%. A moisture analyser or Karl Fischer titration may be used for verification. Extended drying above 100 °C may cause pellet softening and bridging in the hopper; therefore, drying temperature should not exceed 90 °C without continuous agitation.
Environmental stress cracking resistance in closure applications depends on residual hoop stress from press-fit threads and the specific detergent or oil exposure. The polymer’s bimodal molecular weight distribution provides higher ESCR than monomodal HDPE of equal density. For accelerated comparative testing, ASTM D1693 condition B in 10% Igepal at 50 °C may be used, but the test has high scatter and should not be the sole release criterion. Converters must test finished closures under actual chemical exposure because moulded-in stress dominates ESCR performance.
Impact resistance at sub-ambient temperatures is relevant for closure transport and cold-chain packaging. Notched Charpy values at 0 °C and -20 °C are significantly lower than at 23 °C. Closure designs with sharp ribs or rapid wall-thickness transitions can act as stress concentrators. Annealing at 80 °C for 30 minutes is sometimes used to relax residual stress and improve impact performance, but it adds cycle time and must be balanced against dimensional change.
Short shots at constant barrel settings are often caused by gate freeze before hold pressure transfer. The operator should verify that holding time extends at least 0.5 s beyond the gate seal time determined by part weight stabilisation. Gate blush, on the other hand, arises from excessive shear rate at the gate and can be addressed by lowering injection speed or increasing gate diameter.
The grade’s differentiation from lower-flow polyethylene begins with melt rheology. Extrusion blow-moulding HDPE grades with MFR values below 1.0 g/10 min offer higher notched impact strength and better ESCR in thick-walled containers, but they require longer cooling times and higher injection pressures in thin-wall moulds. MB6562 shifts this balance toward processability while retaining sufficient stiffness for closure dimensional stability. Compared with chromium-catalysed HDPE, which may contain trace metal residues, MB6562 is produced with a non-chromium catalyst system and is positioned for applications with food-contact declarations. Differences in test speed, specimen preparation, and molecular weight distribution should be normalised before comparing datasheet values across suppliers; direct substitution in existing tools without process adjustment is not recommended.
Bimodal HDPE of similar density and MFR to monomodal HDPE generally shows a broader molecular weight distribution and higher zero-shear viscosity from the high-molecular-weight tail. In fast injection, however, the shear-thinning behaviour of MB6562 allows flow-pressure reduction without proportional loss of toughness. This characteristic is the principal reason for selecting the grade over general-purpose monomodal HDPE in high-speed thin-wall tooling.
Masterbatch addition can shift melt flow and impact performance. Concentrates based on low-viscosity PE waxes reduce melt pressure and may increase flow, while inorganic pigments such as TiO₂ or carbon black may nucleate crystallisation and alter shrinkage. Colour concentrates should be pre-dried and dosed at fixed gravimetric rates; batch-to-batch variation in masterbatch let-down can alter colour and dimensional distribution. Avoid amine-containing additives or flame retardants that generate acids or act as nucleating agents unless tested for interactions with the base polymer. Published data for this specific configuration is limited.
Regulatory compliance for MB6562 in food-contact applications is conditional on the final article’s overall migration and specific migration limits. Under EU Regulation 10/2011, compliance must be assessed using simulants appropriate to the intended food type and contact time/temperature. Under FDA 21 CFR §177.1520, the olefin polymer may be used in contact with food subject to end-use limitations and conditions of use. The grade is not formulated with heavy-metal pigments or phthalate plasticisers, and typical RoHS exclusion applies for lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. REACH registration obligations are managed by the producer; downstream users must verify substances of very high concern for their specific supply chain.
| Regulatory basis | Scope | Status |
|---|---|---|
| EU Regulation 10/2011 | Plastic food contact materials and articles | Conformity depends on final article migration testing |
| FDA 21 CFR §177.1520 | Olefin polymers for food contact use | Permitted under conditions of use |
| Regulation (EC) No 1907/2006 | REACH registration and downstream user obligations | Polymer exempt from registration; imported monomers registered |
| Directive 2011/65/EU | RoHS hazardous substance restrictions | No intentionally added Pb, Hg, Cd, Cr(VI), PBB, PBDE |
