| HS Code | 926278 |
| Density | 0.957 g/cm³ |
| Melt Flow Rate 190 C 2 16 Kg | 0.07 g/10 min |
| Melt Flow Rate 190 C 21 6 Kg | 12 g/10 min |
| Tensile Strength At Yield | 25 MPa |
| Tensile Strength At Break | 30 MPa |
| Elongation At Break | >600% |
| Flexural Modulus | 1200 MPa |
| Notched Izod Impact At 23 C | 100 J/m |
| Vicat Softening Point | 127°C |
| Melting Point | 133°C |
| Brittleness Temperature | -70°C |
| Environmental Stress Crack Resistance 10 Igepal | >1000 h |
| Hardness Shore D | 65 |
As an accredited Braskem HDPE DA076A factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Braskem HDPE DA076A is packaged in 25 kg polyethylene bags, typically stacked on pallets of 55 bags. |
| Container Loading (20′ FCL) | Braskem HDPE DA076A is typically loaded in 25 kg bags, palletized, into 20' FCL containers at approximately 18 MT net. |
| Shipping | Braskem HDPE DA076A is a non-hazardous high-density polyethylene resin supplied as solid pellets. It is typically shipped in 25 kg bags, supersacks, or bulk trucks/railcars. Not regulated by DOT, IMDG, or IATA. Store in a dry, cool area away from direct sunlight and ignition sources. |
| Storage | Store Braskem HDPE DA076A in original, sealed packaging in a cool, dry, well-ventilated area. Protect from direct sunlight, heat, moisture, dust, and contamination. Keep away from ignition sources and strong oxidizers. Avoid excessive stacking and prolonged outdoor exposure. Keep containers closed when not in use. Maintain good housekeeping and use FIFO stock rotation. Follow the supplier SDS and local regulations. |
| Shelf Life | Shelf life: 24 months from production when stored in original packaging, dry, ventilated, away from direct sunlight, heat, and moisture. |
In rigid liquid dairy and juice packaging, high-molecular-mass HDPE grades are selected when squeeze recovery, drop-impact toughness after chilled filling, and narrow neck finish dimensional stability are required. Braskem HDPE DA076A is a blow-moulding grade with a nominal density of 0.957 g/cm³ under ISO 1183-1:2019 and a melt-flow rate of 0.7 g/10 min under ISO 1133-1:2022 condition 190 °C/2.16 kg. In monolayer food-contact packaging, the formulation addition ratio is typically 80–85 wt% virgin DA076A, 15–20 wt% certified closed-loop regrind from the same food-grade production line, and 1–2 wt% food-approved colour masterbatch; addition of process-aid concentrates beyond 0.2 wt% requires migration clearance under Regulation (EU) No 10/2011 and FDA 21 CFR 177.1520. Compliance for the raw material and finished article is established under FDA 21 CFR 177.1520(c) paragraphs 3.1a and 3.2a for direct food contact, Regulation (EU) No 10/2011 Annex I for overall migration limits, GB 4806.6-2016 and GB 9685-2016 for Chinese plastic food-contact and additive positive-list requirements, and REACH (EC) No 1907/2006 Annex XVII for SVHC declarations. Downstream production is performed on single-station extrusion blow moulding machines with 20:1 to 24:1 L/D barrier screws; the melt temperature is held at 185–215 °C, blow air pressure at 0.6–0.8 MPa, and mould circulating water at 5–10 °C to stabilize parison sag and wall thickness. Parison programming targets a minimum sidewall thickness of 0.4 mm and base corner thickness above 0.6 mm, followed by in-line leak testing at 2–5 kPa internal air pressure. Terminal finished product types include 200 ml–2 L bottles for pasteurized juice, UHT milk, liquid dairy drinks, drinking water, and edible oil, with screw-cap neck finishes from 28 mm to 38 mm. A documented limitation is that fatty-food simulant D2 migration testing must be completed for oil-containing products, and regrind from non-food packaging lines must be completely excluded to avoid contaminant carryover.
| Regulatory framework | Material/scope | Test method or clause | Typical verification |
|---|---|---|---|
| FDA 21 CFR | Olefin polymer for direct food contact | 21 CFR 177.1520(c) 3.1a/3.2a | Finished food simulant migration |
| EU | Plastic food-contact material | Regulation (EU) No 10/2011 Annex I | Overall migration ≤ 10 mg/dm² |
| China | Plastic resin and additive positive list | GB 4806.6-2016; GB 9685-2016 | Declaration of compliance |
| REACH | SVHC and restriction screening | EC No 1907/2006 Annex XVII | Article 33 declaration |
The controlling failure mode in high-alkalinity detergent bottles is environmental stress cracking at the pinch-off seam and base corners when the bottle is stored at elevated ambient temperature and exposed to surfactants. For DA076A, environmental stress cracking resistance should be evaluated according to ASTM D1693-15 Method B in 100% Igepal CO-630 at 50 °C; tropical export programs require an F50 above 100 h, while temperate distribution can accept shorter F50 values only after full-bottle stack testing under ASTM D2659-16. The formulation addition ratio for this segment is 75–90 wt% virgin DA076A, 10–20 wt% clean in-house regrind generated from detergent bottle rejects, 1–3 wt% white or coloured masterbatch, and 0.1–0.3 wt% UV stabilizer only when outdoor retail display is specified. Downstream production uses reciprocating-screw extrusion blow moulding with accumulator chamber temperature 190–215 °C and mould cooling water at 10–20 °C; parison wall profiling must maintain a minimum squat-wall thickness of 0.8 mm for 1 L and 1.2 mm for 5 L formats to avoid handle-area thinning. Conversion lines with in-line leak detectors and vertical drop testers are preferred for supervising batch-to-batch variance. Terminal finished product types include 300 ml–5 L bottles for laundry detergent, fabric softener, chlorine bleach, hard-surface cleaners, and dishwashing liquid. An incompatibility boundary is that bottles intended for pure hypochlorite solutions above 5% active chlorine should receive a closure-liner and ESCR validation under stressed-bottle conditions; published data for this specific DA076A/hypochlorite configuration is limited and should be generated before commercial qualification.
In personal-care packaging, wall-thickness distribution is governed less by hydraulic load than by shelf-appearance gloss, drop resistance after filling, and neck-finish closure torque stability. DA076A is dry-blended at 85–95 wt% virgin resin with 5–10 wt% same-generation closed-loop regrind and 1–3 wt% pearlescent or solid colour masterbatch; external plasticizer is not used. The relevant regulatory profile includes Regulation (EC) No 1935/2004 for general transfer of constituents where the same bottle design is used in food-contact positioning, Regulation (EC) No 1223/2009 for the safety of the finished cosmetic product, EU Directive 94/62/EC for packaging heavy-metal limits, and REACH (EC) No 1907/2006 Annex XVII for registration and restriction screening. Downstream conversion takes place on continuous and intermittent extrusion blow moulding machines with 20:1 to 24:1 L/D single screws; melt temperature is held between 190 °C and 210 °C, blow pressure at 0.6–0.7 MPa, and mould water temperature at 5–15 °C. For high-gloss black bottles, ejection speed and mould release must be balanced with surface finish; a mould surface finish of SPI A-2 or finer reduces pin-hole appearance and stabilizes uniform colour dispersion. Terminal finished product types include 200 ml–1 L bottles for shampoo, conditioner, body wash, liquid soap, and lotion, with 24/410 and 28/410 neck finishes common in this equipment class. The material should not be used in direct contact with high-menthol or high-limonene oil formulations without extraction testing because these terpene-based ingredients can cause localized stress cracking at the finish junction; successful qualification requires full-bottle tensile and drop testing under ASTM D2463-15 after ageing at 40 °C for 14 days.
Pharmaceutical solid-dose bottles demand resin cleanliness, lot traceability, and compendial extractables control. DA076A is processed at a formulation addition ratio of 100 wt% virgin resin; post-consumer and non-food plant regrind are excluded, and colour masterbatch is limited to 0–1 wt% only where the masterbatch carries a drug master file or pharmacopoeial declaration. The compliance framework for primary HDPE containers includes Ph. Eur. 3.1.3 Polyolefins, USP <661.1> Plastic Materials of Construction, FDA 21 CFR 177.1520 for indirect food-grade resin status where the same type is used in non-pharma lines, and ICH Q1A(R2) stability testing in the final container-closure system. Downstream conversion is done in ISO Class 8 or better cleanrooms on extrusion blow moulding lines with filtered blow air at 0.2 µm; melt temperature is maintained at 185–200 °C to minimize thermal degradation and low-molecular-weight extractable compounds. Moisture condensation on pellets is controlled by storing in sealed silos at ≤60% RH; if accidental exposure to humid air occurs, pre-drying at 80 °C for 2 h is required before feeding. Terminal finished product types include 20–500 ml solid-dose bottles for tablets and capsules, typically matched with polypropylene child-resistant closures and aluminium induction seals. The operational boundary is that DA076A is not suitable for parenteral or ophthalmic primary containers; published data for this specific configuration is limited to solid oral dosage forms, and any liquid oral syrup application requires additional exhaustive extraction profiling under Ph. Eur. 3.1.3 and USP <661.2>.
Liquid crop protection and industrial chemical containers require both UN-type certification and resistance to hydrocarbons, esters, and surfactants. DA076A is formulated at 80–90 wt% virgin resin, 2–3 wt% carbon black or UV-stabilized masterbatch, and 5–10 wt% clean in-house regrind from the same packaging line; regrind must not contain residues from incompatible solvents. The regulatory framework is UN Model Regulations Chapter 6.1 for plastics jerricans, 49 CFR 178.603 drop testing, 178.604 leakproofness/hydraulic pressure, 178.605 stacking, and 178.606 vibration, plus ADR/RID for European road/rail transport. Downstream production uses extrusion blow moulding with a 24:1 L/D screw, melt temperature 190–215 °C, and parison programming to produce wall thicknesses of 0.8–1.5 mm depending on pack size. When aromatic solvent concentration exceeds 5% or oxygen-sensitive formulations are filled, in-line fluorination with 0.5–1.0% fluorine in nitrogen is applied to reduce hydrocarbon permeation and improve barrier properties; unfluorinated DA076A monolayer must not be specified for aggressive solvent systems without permeation testing under ASTM D2684 or gravimetric ASTM D814. Terminal finished product types include 1–5 L jerrican bottles for pesticides, adjuvants, foliar fertilisers, and general industrial cleaning concentrates; UN 3H1 or UN 3H2 certification is assigned after packaging group testing. Published permeation constants for DA076A under specific actives are limited; each new filled product requires a chemical compatibility log under ASTM D543-21 for immersion exposure and full UN performance qualification.
| UN test | Method reference | PG II liquid criterion | PG III liquid criterion |
|---|---|---|---|
| Drop | 49 CFR 178.603 | 1.2 m | 0.8 m |
| Hydraulic pressure | 49 CFR 178.604 | 100 kPa for 30 min | 100 kPa for 30 min |
| Stacking | 49 CFR 178.605 | Load from 3 m stacking height for 24 h | Load from 3 m stacking height for 24 h |
| Vibration | 49 CFR 178.606 | No leakage | No leakage |
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Product designation: Braskem HDPE DA076A. The resin is a high-density polyethylene supplied in pellet form for extrusion blow molding of rigid containers, narrow-neck bottles, industrial jerrycans, and related hollow articles. The melt flow rate is 0.7 g/10 min at 190 °C/2.16 kg when tested according to ISO 1133-1:2022. The density is 0.948 g/cm³ determined by ASTM D792. These values place the grade below fractional-melt-flow HDPE materials in melt strength, but above general-purpose injection molding HDPE in parison integrity. The molecular weight distribution is broad and bimodal; a lower-molecular-weight fraction contributes flow and surface quality, while a higher-molecular-weight fraction contributes slow crack growth resistance and pinch-off weld strength.
The following table records typical published values from the product technical data sheet.
| Property | Standard | Typical Value |
|---|---|---|
| Melt flow rate | ISO 1133-1:2022 | 0.7 g/10 min at 190 °C/2.16 kg |
| Density | ASTM D792 | 0.948 g/cm³ |
| Tensile strength at yield | ASTM D638-14 | 25 MPa |
| Elongation at break | ASTM D638-14 | >600 % |
| Flexural modulus | ASTM D790 | 1,150 MPa |
| Vicat softening temperature | ASTM D1525 | 127 °C |
| Hardness | ASTM D2240 | 64 Shore D |
| Environmental stress crack resistance, F50 | ASTM D1693, Condition B, 10% Igepal CO-630, 50 °C | >200 h |
The density of 0.948 g/cm³ is deliberately positioned below high-stiffness HDPE grades with densities above 0.955 g/cm³. This lower crystallinity reduces brittle crack sensitivity and contributes to a more stable stress-crack response under hoop stress. The flexural modulus of 1,150 MPa is sufficient for stacked containers in the 5 L to 20 L range when the minimum wall thickness is maintained above 1.0 mm. DA076A is therefore not selected when maximum top-load strength is the controlling requirement; higher-density blow molding grades are used in those applications.
The main structural distinction is the bimodal molecular weight distribution and the corresponding rheological response. A unimodal HDPE with density near 0.948 g/cm³ typically exhibits a narrower distribution, a sharper melt transition, and lower die swell. In extrusion blow molding, narrow-distribution materials may display faster parison drawdown and lower resistance to sag in deep-draw tooling. DA076A is less likely to thin unpredictably in the upper parison when the drop length exceeds 400 mm.
Under ASTM D1693, Condition B, the F50 failure time for DA076A exceeds 200 h. A unimodal grade of similar density can fall below 50 h when comonomer placement and cooling rate are unfavorable. This difference matters in containers with sharp radii, pinch-off lines, and closures, because stress crack growth initiates at stress concentrations rather than in flat plaque regions. The tensile yield strength of 25 MPa measured per ASTM D638-14 at 50 mm/min is not the highest among HDPE grades; the value reflects the balance between stiffness and extensional flow stability. Higher-density grades may exceed 28 MPa in tensile yield, but their environmental stress crack resistance can be lower because of higher crystallinity and reduced tie-molecule density.
The bimodal distribution also modifies shear thinning. At blowing temperatures between 180 °C and 210 °C, DA076A retains enough shear thinning to limit extruder torque, but the melt does not become excessively low-viscosity at the die exit. This is important in accumulator head machines and continuous shuttle machines where parison hang time determines the lower wall thickness.
Extrusion blow molding with DA076A is controlled primarily by screw geometry, thermal profile, and parison programming. On single-station shuttle machines using screw diameters of 60 mm to 80 mm and L/D ratios of 24:1 to 30:1, the melt temperature is typically maintained between 180 °C and 210 °C. A flat or slightly reverse temperature profile is used from the feed throat to the die to limit early melting and channeling. The die temperature is held within 5 °C of the target melt temperature to avoid melt fracture and uneven die swell. The parison drop time is minimized because the melt strength of DA076A is lower than that of a 0.35 g/10 min blow molding grade. For containers with drop lengths above 500 mm, wall thickness programming is used with a thicker bottom segment of 0.2 mm to 0.5 mm above the nominal wall to compensate for drawdown.
Mold cooling is set between 10 °C and 20 °C with chilled-water supply at approximately 10 °C. Insufficient cooling produces post-mold shrinkage and handle-wall deformation in jerrycans. For 5 L container tooling, cycle times commonly fall between 18 s and 30 s depending on wall thickness and mold material. Aluminum tooling requires longer cooling than beryllium-copper inserts in the pinch-off region. The parison die gap is typically set at 1.0 mm to 1.4 mm. Excessively small gaps raise die head pressure and may shear the melt, while excessively large gaps reduce die swell and make wall distribution uneven.
Moisture absorption is low. Drying is not generally required when the silo is closed and the ambient relative humidity remains below 60%. If condensation occurs, predrying at 70 °C for 2 h in a desiccant hopper dryer is used before processing. The resin should not be blended with high levels of low-viscosity external lubricants without qualification, because such additives can reduce weld strength at the pinch-off. Bottle drop impact testing according to ASTM D2463 and bottle burst testing according to ASTM D2911 are appropriate methods for validating welded regions.
Changing resin from a 0.35 g/10 min HDPE to DA076A alters head pressure, parison sag, and pinch-off weld strength simultaneously. Because DA076A has an MFR of 0.7 g/10 min, extruder head pressure may decrease at constant screw speed. The reduction is commonly in the range of 10% to 20%, depending on die gap, temperature, and screw design. That lower pressure can allow a 5 °C to 10 °C reduction in melt temperature, but the lower melt strength also shortens open parison hang time. Existing tooling with drop lengths above 600 mm requires reprogramming of the parison wall profile. In 20 L jerrycan tooling, the bottom wall thickness is typically increased by 0.3 mm to 0.6 mm relative to a fractional-MFI grade to maintain minimum thickness after pinch-off.
Compared with a general-purpose injection molding HDPE with an MFR above 5 g/10 min, DA076A is not a direct substitute. Injection molding grades fill thin-wall cavities at lower injection pressures and higher flow lengths. DA076A would require higher melt temperature and pressure, and the melt front may freeze prematurely in sections below 1 mm. Conversely, compared with a film-grade HDPE of similar density, DA076A provides greater parison weight and better wall distribution in thick-section blow molded parts. Film grades are not formulated for the sag resistance required in extrusion blow molding of large containers.
Relative to higher-density HDPE blow molding grades with density above 0.955 g/cm³, DA076A trades some top-load stiffness for improved slow crack growth resistance. This trade-off is relevant in containers for agricultural chemicals, cleaning fluids, and automotive liquids, where stress cracking is a more frequent failure mode than short-term compressive buckling. The product is not positioned as a maximum-stiffness industrial container grade. It is positioned as a balance between parison stability, ESCR, and stiffness.
When DA076A is blended with post-consumer recycled HDPE, each blend lot must be evaluated because the melt flow rate and ESCR of recycled feedstocks vary widely. DA076A can be used as a virgin diluent to restore ESCR in recycled-content containers, but the addition of recycled material may shift the melt flow rate and reduce parison uniformity. The compatibility of the recycled fraction with closures, labels, and colorants should be tested under the final container wall thickness and closure torque conditions. Published data for this specific configuration is limited; qualification must therefore include full-scale bottle performance rather than resin plaque testing alone.
Environmental stress crack resistance is the critical qualification target for DA076A in aggressive household chemical containers and agricultural fluid packaging. Under ASTM D1693, Condition B, the F50 failure time exceeds 200 h in a 10% Igepal CO-630 solution at 50 °C. This performance is not uniform across all part geometries. Welded pinch-off lines and sharp corners concentrate stress and reduce the effective ESCR of a finished container compared with a flat compression-molded plaque. Finished-article validation must therefore include bottle drop impact testing per ASTM D2463 and burst testing per ASTM D2911.
Short-term contact with aliphatic hydrocarbons, dilute acids, and alkaline solutions is generally acceptable when validated on finished articles. Continuous service with strong oxidizing acids, aromatic solvents, or high-octane fuels above 40 °C is not recommended for this grade. These environments can cause swelling, oxidative degradation, or accelerated slow crack growth. For automotive fluid containers, specific pack testing with the actual fluid is required because additive packages in the fluid can be more aggressive than the base hydrocarbon.
Food-contact applications must comply with 21 CFR 177.1520 for the United States and EU Regulation 10/2011 for European Union markets. Overall migration testing under EU Regulation 10/2011 is required on the finished article, with the standard overall migration limit of 10 mg/dm² for general food contact. The resin is not supplied with direct UV stabilization for extended outdoor storage. Articles exposed to sunlight for longer than 6 months should be protected with an adequate UV stabilizer package, and the stabilizer must be qualified for effect on ESCR and weld strength.
The processing window for DA076A is bounded by lower melt temperature limits and upper melt temperature limits. Below 175 °C, the melt may exhibit low die swell and high head pressure. Above 210 °C, parison sag can increase and lower wall thickness may become difficult to maintain. In thin-wall regions below 0.8 mm, rapid cooling can reduce weld-line strength. These boundaries are operational boundaries for extrusion blow molding equipment, not intrinsic chemical degradation limits. They are particularly relevant on continuous shuttle machines where parison discharge timing is fixed by the machine cycle.
In summary, Braskem HDPE DA076A is specified as a blow molding grade with a 0.7 g/10 min melt flow rate and 0.948 g/cm³ density. Its differences from other products are most visible in parison hang time, pinch-off weld strength, and environmental stress crack resistance. The grade is not a universal HDPE; tooling and processing parameters must be adjusted when it replaces fractional-MFI or higher-density materials, and chemical contact limits must be confirmed on finished containers.
