| HS Code | 528616 |
| Polymer Type | High Density Polyethylene |
| Form | Pellets |
| Color | Natural |
| Density | 0.948 g/cm³ |
| Melt Flow Rate 190 C 2 16 Kg | 0.05 g/10 min |
| Melting Point | 131 °C |
| Vicat Softening Point | 121 °C |
| Tensile Strength At Yield | 25 MPa |
| Elongation At Break | >600 % |
| Flexural Modulus | 1100 MPa |
| Hardness Shore D | 60 |
| Haze | 10 % |
| Gloss | 60 % |
| Dart Drop Impact | 150 g |
| Elmendorf Tear Strength Md | 20 g |
| Elmendorf Tear Strength Td | 100 g |
As an accredited BPE (Thailand) HDPE 7000 F factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | BPE (Thailand) HDPE 7000 F is packaged in 25 kg bags or 1,000 kg jumbo bags for bulk supply. |
| Container Loading (20′ FCL) | BPE (Thailand) HDPE 7000F loads in 20′ FCL at 22 MT, packed in 25 kg bags, 880 bags per container. |
| Shipping | BPE (Thailand) HDPE 7000 F is a non-hazardous high-density polyethylene resin, typically shipped in 25 kg bags, jumbo bags, or bulk liners. It is not transport-regulated. Store dry, cool, ventilated, away from moisture, direct sunlight, heat, and contamination. Suitable for sea, rail, and truck shipment. |
| Storage | Store BPE (Thailand) HDPE 7000 F in a cool, dry, well-ventilated warehouse away from direct sunlight, heat, sparks, and strong oxidizers. Keep original bags/containers closed, palletized, and off the ground to prevent moisture and contamination. Avoid excessive stacking. Protect from UV exposure and incompatible materials. Use first-in, first-out stock rotation, and follow the supplier’s SDS. |
| Shelf Life | Shelf life: Stable under normal storage; keep cool, dry, away from sunlight. Consult supplier for specific expiry or retest date. |
In high-stalk blown-film conversion of BPE (Thailand) HDPE 7000F, die diameters of 150–250 mm and a dual-lip air ring with supply air at 15–25 °C are baseline conditions for manufacturing 8–18 µm T-shirt carrier bags. The grade is positioned in the high-molecular-weight film class with a low-load melt flow rate below 0.1 g/10 min at 190 °C and 2.16 kg under ISO 1133-1:2022 and a density in the 0.949–0.953 g/cm³ band under ASTM D1505. Such a low-flow resin requires a grooved-feed single-screw extruder with L/D 24:1–30:1; the melt is delivered to a spiral mandrel die with a 1.2–1.8 mm die gap. Barrel temperatures from feed throat to adapter are kept at 180–210 °C, and the die head is held at 190–215 °C. Operating below 180 °C at the adapter or die lip can trigger sharkskin melt fracture because the high-viscosity high-molecular-weight phase cannot relax before the die land. The bubble is run with a blow-up ratio of 4:1–6:1 and a frost line height of 8–12 die diameters to orient the film before crystallisation freezes the stalk structure. The converter typically dry-blends 2–4 wt% of a polyethylene carrier masterbatch for pigmentation, slip, or anti-block. The blown web is converted on a bag machine with hot-bar bottom sealing and handle die-cutting. Quality control targets are set under ASTM D882 for tensile properties and ASTM D1709 for dart impact; because published data for this specific configuration with BPE 7000F is limited, the converter must fix lot-specific alarm limits against approved reference film. Where the bag is used for direct contact with dry food, the converting line must hold a grade-specific compliance letter under FDA 21 CFR 177.1520 and satisfy EU Regulation 10/2011 overall migration limits. In non-food retail service, the relevant packaging requirement is the heavy metal restriction under EU Directive 94/62/EC, with the sum of lead, cadmium, mercury, and hexavalent chromium not exceeding 100 mg/kg.
Down-gauging from 18 µm to 9 µm in municipal refuse sack conversion moves the dominant failure mechanism from gross tensile overload to tear propagation and puncture at sharp waste contacts. Under ASTM D1709 Method A, the free-falling dart impact F50 value declines with gauge; a frequently used converter target for a 12 µm HMW-HDPE refuse sack is an F50 of 150 g or higher, but this is equipment-dependent and must not be read as an unconditional material property. The film is blown on a high-stalk line with blow-up ratio 3:1–4:1, frost line height 6–8 die diameters, and die gap 1.2–1.6 mm. A synthetic silica anti-block masterbatch is added at 0.5–1.5 wt% to prevent winder blocking; if a slip function is required, an erucamide concentrate is dosed to give an active amide content of 300–800 ppm in the film. The finished sacks are welded through a bottom-seal machine, commonly with a star-seal base and side gussets for volumetric stability. Elmendorf tear is measured under ASTM D1922 in both machine and transverse directions; the transverse direction is normally the limiting value because the high-stalk process produces pronounced machine-direction orientation. If transverse tear falls below the converter-defined threshold, the corrective action is to reduce draw resonance or raise frost line height before increasing overall gauge. The required regulatory declarations are non-food packaging limits under EU Directive 94/62/EC and any municipal packaging waste disposal rules in the destination market. No FDA 21 CFR 177.1520 direct food contact declaration is required for this end use.
When BPE HDPE 7000F is selected as an inner liner for multi-wall paper shipping sacks used for hygroscopic industrial solids, the controlling technical requirement shifts from film impact to moisture barrier and chemical compatibility. The liner is usually extruded at 40–80 µm thickness and converted as a loose tube inside a kraft paper sack. Water vapour transmission rate is measured under ASTM E96/E96M at 38 °C and 90% RH; HDPE of this density class has a moisture vapour permeability coefficient in the 0.2–0.4 g·mm/m²·day·kPa range, but published data for this specific configuration with BPE 7000F is limited and must be confirmed on the finished tube. Chemical resistance is evaluated by immersion in dilute acids and alkalis under ASTM D543, with visual inspection after 24 h at 23 °C; the film should not show whitening, delamination, or loss of heat-seal function. The liner is made on a blown-film line with die diameter 200–400 mm, blow-up ratio 2.5:1–3.5:1, and frost line height 4–6 die diameters, followed by gusseting and perforation. Pre-drying is not normally required unless the plant stores resin in an uncontrolled warehouse above 60% RH; in that case, surface moisture must be removed by a hopper dryer set at 50–60 °C for 1–2 h to prevent melt bubbles and pinholes. The completed inner liner is inserted into the paper sack and sealed by the sack producer; it carries the same EU 94/62/EC heavy metal constraints as other non-food packaging, and the sack manufacturer must verify compliance with destination-market packaging waste regulations.
For silage clamp covers and temporary agricultural protection sheeting, BPE HDPE 7000F is converted into 60–120 µm black film with a carbon black masterbatch added at 2–3 wt% and a hindered amine light stabiliser masterbatch at 0.2–0.5 wt% active HALS. The black concentrate is necessary because HALS alone does not provide sufficient opacity and UV screening for multi-month outdoor exposure; carbon black particle size and dispersion must be controlled to avoid gel-related pinholes. Extrusion is conducted on a wide die line with die diameter 800–1500 mm, blow-up ratio 2.5:1–3.5:1, die gap 1.8–2.5 mm, and die melt temperature not exceeding 230 °C to limit degradation of the HALS package. After extrusion, the lay-flat web is trimmed and wound in widths from 4 m to 12 m depending on the clamp size. The end product is anchored on the silage clamp by sandbags or tyre sidewalls. Tensile properties after weathering are checked under ASTM D882 following accelerated aging in a xenon-arc apparatus according to ISO 4892-2, with cycle times and irradiance set by the film converter. Grade-specific data for BPE 7000F in this outdoor agricultural configuration is not fully published; the converter must run weathering trials against a reference lot rather than rely on generic HDPE retention curves. The film falls under non-food agricultural plastic rules, and the formulation must comply with REACH Annex XVII restrictions and destination-specific agricultural waste schemes.
| Application segment | Standard / test method | Control variable | Typical acceptance basis |
|---|---|---|---|
| Thin-gauge retail carrier bags | ASTM D882; ASTM D1709; ISO 1133-1:2022 | Gauge uniformity; dart impact F50 | ±10% of target gauge; converter-defined minimum |
| Municipal refuse sacks | ASTM D1709; ASTM D1922; ASTM D5748 | Tear propagation; puncture resistance | Converter-defined; published data for this configuration is limited |
| Industrial ship-sack liners | ASTM E96/E96M; ASTM D543 | Water vapour transmission; chemical retention | Barrier equivalent to 40–80 µm HDPE film; no visual degradation after 24 h |
| Agricultural silage covers | ISO 4892-2; ASTM D882 | UV retention; tensile after aging | Converter-defined retained strength; 2–3 wt% carbon black |
| Recycled core can liners | EU 94/62/EC; REACH Annex XVII | Heavy metal sum; gel count | ≤ 100 mg/kg; screen pack 100–150 µm |
Differently from refuse sacks and agricultural covers, paper-like retail carry-out bags made from 7000F use a high blow-up ratio and a very high frost line to maximise the stiffness and handle strength of the final bag. The film is produced at 10–15 µm, but the essential control variable is not gauge alone; it is the ratio of machine-direction modulus to transverse-direction modulus under ASTM D882, which in high-stalk HMW-HDPE film can exceed 2:1. The converter maintains a blow-up ratio of 5:1–7:1, die gap 1.2–1.8 mm, and frost line height 10–14 die diameters, while the bubble is stabilised by a cage and internal bubble cooling with differential pressure adjusted to hold the stalk within ±5 mm of vertical. Film that is too unbalanced tears at the handle cut-out; film that is too balanced loses the paper-like handle stiffness. BPE 7000F is extruded neat or with 1–2 wt% white masterbatch to produce opaque pastel or fully printed webs. The formed bag is handled by a servo-driven bag machine with punch-type handle cut and hot-knife bottom seal, which requires a heat-seal temperature window of 130–155 °C on corona-treated film surfaces. This end use is non-food, but if a food contact claim is made for bakery or produce bags, FDA 21 CFR 177.1520 and EU 10/2011 migration documentation must be obtained from the supply chain.
In a three-layer A/B/A coextruded can liner structure, BPE HDPE 7000F is placed in the outer skin layers at 20–30 wt% each and a post-consumer recycled HDPE core is included at 40–60 wt%. The skins carry the primary bubble stability, heat-sealing, and surface friction properties, while the PCR core contributes dimensional stability and recovered resin content. The coextrusion line uses three single-screw extruders with melt streams combined in a three-layer spiral mandrel die; skin extruders are grooved-feed with L/D 24:1–28:1, and the PCR core extruder is fitted with a continuous melt filter having a 100–150 µm screen pack to remove gel particles from the recycled fraction. If the PCR core is not continuously filtered, die-lip gel build-up increases and extruder pressure can rise above 35 MPa within a few hours, forcing line stoppage for die cleaning. Film thickness is typically 20–35 µm for institutional can liners, with blow-up ratio 3:1–4:1 and die gap 1.5–2.0 mm. The finished liner is evaluated for puncture resistance under ASTM D5748 and for dart impact under ASTM D1709; because the PCR core introduces batch-to-batch rheology variance, extruder amp draw and back pressure must be logged against each PCR lot. Compliance for this non-food recycled packaging configuration rests on EU Directive 94/62/EC, including the sum of lead, cadmium, mercury, and hexavalent chromium not exceeding 100 mg/kg, and any local recycled content verification under ISO 14021 if a claim is made. No direct food contact claim is made in this converter arrangement.
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BPE (Thailand) HDPE 7000 F is a high-molecular-weight high-density polyethylene blown film resin supplied by Bangkok Polyethylene Public Company Limited. The product designation 7000 F identifies the film extrusion grade within the supplier’s HDPE portfolio; it is not an injection moulding or blow moulding grade. The nominal melt flow rate is 0.05 g/10 min under ISO 1133-1, and the nominal density is 0.954 g/cm³ under ISO 1183-1. These two values place the grade in the high-molecular-weight film class, where melt strength and environmental stress crack resistance are prioritised over ease of flow.
The resin is intended for high-output mono-layer and coextruded blown film operations using grooved-barrel extruders and spiral mandrel dies. In such systems, the high zero-shear viscosity and broad molecular weight distribution delay melt fracture and permit downgauging to 12 µm without loss of bubble stability. Primary commercial positions are T-shirt grocery sacks, industrial can liners, and heavy-duty secondary packaging where tensile strength and environmental stress crack resistance are the controlling mechanical properties.
The resin is supplied as solid pellets. As a linear high-density polyethylene, it lacks the frequency of long-chain branches found in low-density polyethylene made by high-pressure free-radical polymerisation. The molecular architecture therefore supports high melt strength during stalk-orientated blown film processing rather than high extensional stretch at low strain.
The classification rests on weight-average molecular mass and the breadth of the molecular weight distribution. HDPE 7000 F is a high-molecular-weight film resin; its melt flow rate of 0.05 g/10 min corresponds to a zero-shear viscosity far higher than that of a 0.7 g/10 min film grade. Published extensional viscosity data for this specific grade are limited; the low melt flow rate is therefore used as the primary rheological classification in supplier documentation. Gel permeation chromatography data for individual batches may provide weight-average molecular mass and polydispersity, but universal trade literature values are not always published.
The high molecular weight fraction contributes to strain hardening during stalk bubble orientation. This permits a stable bubble with a high stalk height and improves dart impact resistance at reduced gauge. In contrast, general-purpose medium-molecular-weight HDPE film grades with melt flow rates of 0.6–1.2 g/10 min exhibit lower bubble stability at thin gauge and lower environmental stress crack resistance under ASTM D1693. Their processing advantage is lower melt temperature and lower die pressure, but the mechanical consequence is a loss of dart impact at equivalent film thickness.
The density of 0.954 g/cm³ is also deliberately moderate for a film grade. It provides higher stiffness and water-vapour barrier than LLDPE while retaining sufficient toughness for film conversion. Higher-density HDPE film grades near 0.962 g/cm³ have greater stiffness but reduced dart impact and ESCR; lower-density grades near 0.947 g/cm³ improve toughness but reduce tensile strength. The density value is therefore a specification boundary, not a marketing indicator.
The nominal property profile according to public supplier technical literature is summarised below.
| Property | Test method | Typical value |
|---|---|---|
| Melt flow rate | ISO 1133-1, 190 °C/2.16 kg | 0.05 g/10 min |
| Density | ISO 1183-1 | 0.954 g/cm³ |
| Tensile stress at yield | ISO 527-2 | 26 MPa |
| Tensile strain at break | ISO 527-2 | >500% |
| Flexural modulus | ISO 178 | 1,100 MPa |
| Shore D hardness | ISO 868 | 63 |
| Environmental stress crack resistance | ASTM D1693 condition B, 10% Igepal | >600 h to F50 |
| Dart drop impact, 25 µm film | ASTM D1709 method A | >300 g |
Film values in the table are obtained on a 25 µm mono-layer blown film produced at a blow-up ratio of 4:1, a die gap of 1.2 mm, and a melt temperature of 195 °C. Batch-certificate values may differ from the typical profile; the table is not a procurement specification.
The low melt flow rate of 0.05 g/10 min imposes specific extruder requirements. The grade is not suitable for smooth-bore single-screw extruders with L/D ratios below 24:1; high back pressure and poor melting homogeneity become significant. Grooved-barrel extruders with L/D ratios of 28:1 to 33:1 are standard for industrial conversion. The grooved feed section is required to generate pressure and control throughput at low melt-flow values.
Process temperatures at the die exit are normally held at 180 °C to 210 °C. Temperatures above 210 °C increase oxidative degradation, gel formation, and plate-out on the die lip. Temperatures below 170 °C elevate die pressure and can produce unmelts in the film. The recommended melt temperature is therefore bounded; it is not a free process variable. A typical extruder zone profile is 160 °C in zone 1, 180 °C in zone 2, 190 °C in zones 3 and 4, and 195 °C at the adapter and die. These set points are starting conditions, not universal because screw geometry and throughput alter melt temperature.
A typical die gap is 0.8 mm to 1.4 mm. Die gaps above 1.6 mm reduce orientation and diminish tensile strength; gauges below 0.8 mm may cause dimensional instability with standard spiral mandrel dies. Recommended blow-up ratio is 3:1 to 5:1. A high stalk configuration is preferred because the melt strength of the grade permits a stable bubble with a frost line height of 6 to 8 die diameters. Internal bubble cooling is recommended for throughputs above 150 kg/h on a 60 mm extruder. Without internal bubble cooling, maximum throughput on a 60 mm extruder may fall below 100 kg/h; with internal bubble cooling, throughput can approach 180–220 kg/h depending on die size and air ring design.
On production lines using a 60 mm grooved-barrel extruder with 30:1 L/D, die pressure typically increases by 3–5 MPa for each 10 kg/h increment in throughput at melt temperatures near 190 °C. Pressure transducers should be specified for at least 40 MPa to avoid sensor failure during high-output runs. This pressure behaviour is the reason HMW-HDPE film lines are equipped with reinforced adapters and high-pressure screen changers. Melt filtration is typically 60/90/120 mesh for film-grade HMW-HDPE before the die; finer mesh packs increase back pressure but reduce gel defects.
T-shirt bag and grocery sack films produced from HDPE 7000 F typically operate in the thickness range of 12 µm to 25 µm. At 20 µm gauge, films made with the grade are expected to show dart drop impact values above 300 g under ASTM D1709 method A when processed at a blow-up ratio of 4:1 and a die gap of 1.2 mm. Exact values depend on line configuration; published data for specific configurations are limited, so converters should establish their own capability baselines. Elmendorf tear is measured under ISO 6383-2; typical machine-direction values at 20 µm range from 25 kN/m to 40 kN/m, but the range reflects orientation state rather than resin quality alone.
The stalk bubble process creates anisotropic orientation. Increasing stalk height raises machine-direction tensile strength but reduces transverse-direction Elmendorf tear. For sack applications requiring tear balance, a blow-up ratio of 4:1 with a moderate stalk height is often used. The addition of slip and antiblock masterbatch at 2–5 wt% reduces blocking but lowers dart impact; addition above 5 wt% can create visible gels and die build-up.
Industrial can liners and agricultural films made from HDPE 7000 F exploit the resin’s resistance to stress cracking. Environmental stress crack resistance measured by ASTM D1693 condition B in 10% Igepal solution is typically reported above 600 h to F50. In comparison, many medium-molecular-weight HDPE film grades with melt flow rates above 0.5 g/10 min fail below 100 h under the same test. The difference is attributable to the higher molecular weight fraction, which resists crack propagation between crystalline lamellae.
The high ESCR is relevant in contact with surfactants, mild acids, alkalis, and aqueous detergent solutions at ambient temperatures. The grade is not suitable for continuous exposure to strong oxidizing acids, aromatic hydrocarbons, or chlorinated solvents at elevated temperatures; published data for these specific chemical configurations are limited. Resistance must be tested with the actual filled liner and the target waste stream rather than inferred from general polymer compatibility tables. For detergent packaging and agrochemical liners, stress cracking is a long-term failure mode because the film is subjected to chemical contact and bending stresses at the fold. The F50 value above 600 h gives a conservative expectation for neutral and mild systems; it is not a substitute for package testing under transport protocols such as ISTA 3A.
At service temperatures above 60 °C, the alkaline resistance of HDPE film may decline; liners for alkaline effluent above this threshold should be tested against the actual chemical formulation. Pre-drying is not usually required. If pellets are stored at relative humidity above 60% and condensation is visible, hopper drying at 70–80 °C for 2 h is sufficient to restore bubble stability.
HDPE 7000 F differs from medium-molecular-weight HDPE film grades in melt flow, ESCR, and die pressure. Medium-molecular-weight HDPE film resins with melt flow rates of 0.6–1.2 g/10 min run at lower die pressure and can be processed on shorter extruders, but they show lower dart impact at equal gauge and lower ESCR. Converters pay for the low melt flow rate of HDPE 7000 F with more robust extruder pressure capability; the return is the ability to downgauge film without losing sack-loading resistance. When used as a replacement for medium-molecular-weight HDPE in existing lines, the processor should revalidate die pressure and motor load. The low melt flow rate increases specific energy input; extruder motor load may rise by 10–20% compared with a 0.7 g/10 min HDPE at equal throughput.
Compared with linear low-density polyethylene film resins, HDPE 7000 F has higher density and crystallinity, which translate into higher flexural modulus and lower water-vapour transmission. Water-vapour transmission rate of HDPE film is lower than that of LLDPE at equal thickness; the actual value depends on gauge and test conditions under ISO 15106-1 or ASTM E96. Tensile modulus of HDPE 7000 F, measured by ISO 527-2, is approximately 1,100 MPa, whereas LLDPE film grades frequently fall below 400 MPa. LLDPE provides greater low-temperature dart impact and can be used at similar gauge; HDPE 7000 F provides greater extensional rigidity, higher temperature resistance, and better stress crack resistance in many aqueous-surfactant environments. Coextruded HDPE/LLDPE structures are often used to place the HDPE layer on the outside for stiffness and the LLDPE layer inside for toughness.
Compliance statements for HDPE 7000 F are supplied by BPE (Thailand) under the relevant food-contact regulations. Applications are not automatically food-approved in every jurisdiction; the converter must establish migration compliance under EU Regulation 10/2011 or FDA 21 CFR 177.1520 for the finished article. The resin itself is typically formulated with antioxidant and acid scavenger packages, but slip and antiblock masterbatches added at the converter must also be evaluated under the same regulatory instruments. For industrial packaging, REACH and RoHS declarations are available from the supplier for the base resin. The finished article assessment includes inks, adhesives, and additives; the converter retains responsibility for the total product.
| Requirement | Reference | Assessment scope |
|---|---|---|
| Plastic materials for food contact | FDA 21 CFR 177.1520 | Finished article migration |
| Plastic materials and articles for food contact | EU Regulation 10/2011 | Overall migration and specific migration limits |
| REACH SVHC | EC 1907/2006 | Substance of very high concern declaration |
| RoHS | Directive 2011/65/EU | Heavy metals, brominated flame retardants |
In coextruded heavy-duty sack structures, HDPE 7000 F is used as the external layer for stiffness, tear strength, and printability. The internal layer may be LLDPE or a lower-density HDPE grade for puncture resistance. The HDPE layer is typically run at 20–40% of the total film thickness, with the remainder selected according to the packaged product and seal requirements. Processors report that the high viscosity of HDPE 7000 F provides a stable coextrusion interface when die temperatures are held above 180 °C; below this temperature, viscosity mismatch with LLDPE can create interfacial instabilities. Published data for this specific coextrusion configuration is limited, and line trials are required to establish the acceptable layer ratio.
