| HS Code | 745180 |
| Product Name | Breplast HDPE TS COR HF T10 |
| Material | High-Density Polyethylene (HDPE) |
| Product Type | Twin-wall corrugated conduit |
| Nominal Diameter | 10 mm |
| Color | Black |
| Density | 0.95 g/cm³ |
| Melting Point | 130 °C |
| Operating Temperature Range | -40 °C to +60 °C |
| Tensile Strength | 20-30 MPa |
| Elongation At Break | >500% |
| Water Absorption | <0.01% |
| Chemical Resistance | Excellent |
| Uv Resistance | Stabilized |
| Electrical Insulation | Good |
| Halogen Free | Yes |
| Standard | EN 61386-24 |
As an accredited Breplast HDPE TS COR HF T10 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Breplast HDPE TS COR HF T10 is supplied in 25 kg bags, palletized and securely shrink-wrapped for safe transport. |
| Container Loading (20′ FCL) | 20′ FCL loaded with Breplast HDPE TS COR HF T10 in 25 kg bags, palletized, shrink-wrapped, and secured for shipment. |
| Shipping | Typically shipped as a non-hazardous solid HDPE compound in 25 kg bags or 1,000 kg bulk bags on pallets. Transport in clean, dry, covered containers at ambient temperature. Protect from moisture, UV, and ignition sources. Confirm SDS; not regulated as dangerous goods unless specified. |
| Storage | Store Breplast HDPE TS COR HF T10 in a cool, dry, well-ventilated area away from direct sunlight, heat, ignition sources, and strong oxidizing agents. Keep containers closed, clearly labeled, and off the floor to prevent moisture. Avoid dust generation. Protect from physical damage and prolonged UV exposure. Follow supplier SDS and local regulations. Use appropriate PPE during handling. |
| Shelf Life | Typically 24 months from manufacture when stored unopened in original packaging, in a dry, cool place away from direct sunlight. |
Breplast HDPE TS COR HF T10 is a high-density polyethylene feedstock classified within the T10 melt flow designation family under ISO 1133-1:2022 conditions of 190°C/2.16 kg. The grade is positioned for conversion routes in which rapid cavity filling, consistent parison or sheet formation, and the chemical resistance of an HDPE backbone are simultaneous requirements. Lot-level density, tensile yield behavior, and environmental stress crack resistance are evaluated against ISO 1183-1:2019, ISO 527-2:2012, and ASTM D1693-15e1 respectively, although published data for this specific commercial configuration remains limited and must be verified against the incoming certificate of analysis.
Extrusion of structured-wall corrugated drainage pipe from Breplast HDPE TS COR HF T10 is governed by ISO 9969 ring stiffness classification and EN 13476-2 structural design requirements. On a grooved-feed single-screw extruder with 30:1 L/D, barrel set points are typically maintained at 180–205–215°C with head temperature 205–220°C to keep melt temperature below 230°C, above which oxidative degradation risk increases. A corrugator with paired mold blocks pulls the extrudate through a forming corridor at vacuum levels from −0.02 to −0.08 MPa depending on pipe diameter and rib depth. Ring stiffness classes SN4 and SN8 require different wall mass distribution; for a DN300 SN8 pipe, typical mass per meter is approximately 12–15 kg depending on profile geometry, not resin identity alone. The addition of 2.5 wt% carbon black masterbatch is applied for ultraviolet stabilization, and carbon black dispersion is checked under ASTM D5596. At melt temperatures above 230°C or extruder speeds above 60 rpm, surface melt fracture and inner-wall scoring are observed on production lines because the high-flow resin develops lower melt strength than pipe-grade bimodal HDPE. Processing trials on this equipment class maintain backpressure between 15–25 MPa to stabilize output and avoid screw surging.
Parison sag, die swell, and pinch-off flash retention in extrusion blow molding are controlled through melt temperature, extrusion speed, and accumulator head geometry. On a shuttle machine with screw diameter 60–100 mm and L/D 24:1, Breplast HDPE TS COR HF T10 is processed at melt temperature 190–220°C and mold clamp force 20–40 t. Containers for aggressive surfactants, crop protection agents, or oxidizer solutions are qualified for environmental stress crack resistance using ASTM D1693-15e1, Condition B, F50 at 50°C. Because the T10 flow range sits on the high end for blow molding, seam flash and pinch weld notches must be mechanically trimmed to reduce stress concentrations; ASTM D1693 F50 values above 24 h are typical minimums for corrosive product containers, while service-critical packs may require values above 200 h. Drop impact resistance of filled packs is verified under ASTM D5276 using a minimum drop height of 1.2 m at 23°C and −18°C for dangerous goods classes. Accumulator head tooling is specified with diverging die land to improve parison wall uniformity. Die gap is set between 1.5 mm and 3.0 mm, and swell values of 20–40% require parison length adjustments of 5–10% on first article runs, depending on resin lot and percentage of regrind.
In thin-wall injection molding of food-contact containers, the melt mass-flow rate measured at 190°C/2.16 kg under ISO 1133-1:2022 is used to set barrel temperatures and injection velocity. Wall thicknesses from 0.4 mm to 0.8 mm are produced on hydraulic toggle machines with clamp force between 2000 kN and 5000 kN and screw L/D 20:1–22:1. For this resin, melt temperatures of 220–250°C and mold temperatures of 10–30°C are commonly applied to reduce warpage while maintaining flow length ratios up to 200:1. Fast injection speeds of 120–250 mm/s generate shear heating of 10–20°C in the nozzle, moving the effective melt temperature closer to the upper oxidative limit. Food-contact status must be assured under EU Commission Regulation (EU) No 10/2011 and US FDA 21 CFR 177.1520 for olefin polymers when the grade is supplemented exclusively with compliant additives. Overall migration testing is performed under 10/2011 Annex V with simulant A, B, C, or D2 depending on intended food type. Production audits record sink marks opposite gate bosses and warpage above 0.15 mm for rectangular containers with length 180 mm; those defects correlate with packing pressure decay during switchover rather than resin lot variability alone.
Multi-cavity closure tools with 48 or 64 cavities impose short volumetric fill times and high shear stress in the hot runner manifold. The flow-length ratio from gate to outermost cavity is routinely 150:1 to 250:1 in 1.5 mm wall sections, so a T10 melt flow classification is required. On all-electric injection molding machines with screw diameter 25–40 mm and clamp force 1500–3500 kN, the resin is processed at 210–245°C with fill time 0.3–0.8 s. Continuous screw recovery is maintained at 50–80 rpm; higher screw speeds generate excessive smearing in the feed zone. Closure ovality after 24 h shrinkage is measured to tolerances of ±0.20 mm on diameter, using a ring gauge or vision system. No single ISO standard governs all closure torque retention; pack performance is verified on proprietary capper fixtures with torque transducers. Stress crack resistance against detergents in dishwasher environments is checked under ASTM D1693 or internal tests with 5% sodium hydroxide at 60°C. Compared to bimodal HDPE grades with melt flow rate below 1 g/10 min, this grade operates at lower F50 environmental stress crack resistance under ASTM D1693, so closure designs should avoid sharp undercuts and weld lines at the tamper-evident band.
Underground power and communication conduits produced from Breplast HDPE TS COR HF T10 are specified under IEC 61386-1 for conduit systems. Corrugated or smooth-wall tubes require crush resistance verified at 750 N or 1250 N load classes, depending on nominal diameter. Extrusion line configuration uses vacuum calibration sleeves for smooth wall or corrugator modules for structured wall; barrel temperatures of 190–215°C and cooling water at 5–20°C are typical. Carbon black content is held at 2.0–2.5 wt% per ASTM D1603 for outdoor UV exposure, while weathering is conducted under ISO 4892-2 with UVA-340 lamps. Low-temperature impact from −5°C to −10°C is included because cable installation in cold soil can crack conduit bells; brittleness temperature is determined under ASTM D746. Production-scale failures observed include bell splitting during mandrel insertion when the outside diameter tolerance exceeds ±0.3 mm, and kinking during coiling if cooling water temperature drops below 5°C. The grade’s high flow permits higher line speed but reduces melt pressure; die head pressure should not fall below 10 MPa, otherwise wall thickness variation exceeds ±0.15 mm.
| Conversion route | Relevant property | Standard designation | Typical acceptance window or class |
|---|---|---|---|
| Corrugated drainage pipe | Ring stiffness; carbon black dispersion | ISO 9969; ASTM D5596 | SN4 or SN8; dispersion rating per contract |
| Blow molded containers | Environmental stress crack resistance; drop impact | ASTM D1693; ASTM D5276 | F50 per service class; 1.2 m at 23°C and −18°C |
| Thin-wall food packaging | Melt mass-flow rate; overall migration | ISO 1133-1:2022; EU 10/2011 | 190°C/2.16 kg; 10 mg/dm² limit |
| Multi-cavity closures | Melt mass-flow rate; ESCR | ISO 1133-1:2022; ASTM D1693 | High-flow T10 class; F50 per closure design |
| Cable duct and conduit | Carbon black content; brittleness temperature | ASTM D1603; ASTM D746 | 2.0–2.5 wt%; −5°C or lower |
| Geomembrane sheet | NCTL; oxidative induction time; weld strength | ASTM D5397; ASTM D3895; ASTM D6392 | Per GRI-GM13 project specification |
Because geomembrane sheet is welded on slope liners, flux path continuity and adjacency to anchor trenches require controlled thickness variability and low residual stress. HDPE geomembranes are conventionally produced from lower-melt-flow resins than T10, but sheet lines with slot die widths of 3 m to 8 m can process medium-high flow grades when polishing rolls and cooling capacity are sized accordingly. For Breplast HDPE TS COR HF T10, published data for this specific configuration is limited; qualification for landfill liner or lagoon containment therefore cannot rely on the grade designation alone and must include GRI-GM13 test suites. Key GRI-GM13 properties include density, melt flow, tensile properties, tear, puncture, notched constant tensile load, and oxidative induction time per ASTM D1238, ASTM D6693, ASTM D1004, ASTM D4833, ASTM D5397, and ASTM D3895/D5885. Potential compatibility of T10 high flow with geomembrane welding is limited by lower melt strength, causing sheet sag at thicknesses above 2.0 mm. On three-roll polishing stacks, sheet edges may lose flatness if melt temperature exceeds 230°C. For liner service with sodium hydroxide or landfill leachate, stress crack resistance is assessed by ASTM D5397 at 50°C; lower-melt-flow HDPE grades typically develop longer NCTL times. If this grade is used, the first article must include scanning wedge weld peel tests per ASTM D6392 and destructive burst tests on seamed panels under site-specific hydraulic head. Avoid contact with strong oxidizing acids and low-molecular-weight chlorinated solvents in geosynthetic service because HDPE permeates nonpolar hydrocarbons and does not provide effective barrier for such species under sustained gradient.
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Breplast HDPE TS COR HF T10 is a high-flow injection-moulding compound based on high-density polyethylene with a nominal 10 wt.% talc filler. The grade code is read as the TS COR high-flow series at 10 wt.% mineral reinforcement; HF designates the high-flow melt modification. The compound is supplied as opaque pellets and is used for thin-wall technical articles, closures, appliance inserts, and cable-management components where reduced shrinkage, higher stiffness, and high flow-length-to-wall-thickness ratios are required. Melt mass-flow rate for this product class is typically reported in the range 18–30 g/10 min when tested to ISO 1133-1:2022 at 190 °C with 2.16 kg. Density is class-representative in the range 0.99–1.01 g/cm³ under ISO 1183-1:2019. Published data for this specific configuration is limited; therefore, part design should use the manufacturer’s certificate of analysis rather than generic class values.
At the compounding stage, the talc is side-fed into a 40:1 L/D co-rotating twin-screw extruder after the polymer melt seal to limit filler attrition. Back-pressure fluctuation across the die is used as a dispersion indicator; deviations beyond ±2 bar from the baseline have been associated with talc agglomerates and surface specks in moulded parts. The compound should be purged with a high-flow HDPE at 180–200 °C before shutdown to minimise filler deposition on screw and die surfaces.
Typical barrel set points for a general-purpose polyolefin screw with 20:1 to 24:1 L/D and compression ratio 2.5:1 to 3.0:1 range from 180 °C in the feed zone to 215–235 °C at the nozzle. The melt-temperature boundary is more restrictive than for unfilled HDPE because talc surfaces can promote oxidative chain scission at extended residence times. On machines with long barrel residence times, nozzle set points above 240 °C have resulted in yellowing, odour, and reduced notched impact. For most thin-wall tools, mould temperature is held between 20 °C and 50 °C; a higher mould temperature up to 60 °C improves weld-line strength but extends cycle time. Back pressure is class-representative at 30–80 bar, and screw recovery speed should be set to avoid excessive shear heating. An issue recorded on production-scale multi-cavity tools is melt-temperature imbalance across hot-runner manifolds; reducing manifold set point from 230 °C to 215 °C lowered warp in 1.2 mm wall sections but increased injection pressure by 8–12 %.
Because the base HDPE matrix absorbs negligible moisture by weight, drying is not normally required. However, condensed surface moisture on cold pellets at ambient relative humidity above 60% can generate splay in moulded parts. When surface moisture is suspected, pre-drying in a hot-air or desiccant dryer at 80 °C for 2 h is sufficient. Do not exceed 90 °C during drying because softened pellets can bridge in the hopper and disrupt gravimetric feed.
Talc platelets orient in the flow direction during mould filling and create a skin-core morphology. As a result, mould shrinkage measured under ISO 294-4:2018 on 60 mm × 60 mm × 2 mm plaques is typically lower and more uniform than unfilled HDPE. Parallel-flow shrinkage is commonly 1.0–1.5 %, while transverse shrinkage is 1.2–1.8 %. The anisotropy between flow and transverse directions should be accounted for in gate design and dimensional tolerance stack-ups. Coefficient of linear thermal expansion between 23 °C and 80 °C is 80–120 × 10-6 K-1 in the flow direction and 90–140 × 10-6 K-1 transverse, as measured by ISO 11359-2:2021. For parts requiring roundness or flatness below 0.05 mm, fixture cooling after ejection and post-mould conditioning are usually necessary because post-crystallisation and moisture-equilibration can change dimensions by up to 0.2 %.
| Property | Representative range for 10 wt.% talc-filled high-flow HDPE | Standard method |
|---|---|---|
| Filler content | 10 wt.% nominal | ISO 3451-1:2019 |
| Density | 0.99–1.01 g/cm³ | ISO 1183-1:2019 |
| Melt mass-flow rate, 190 °C/2.16 kg | 18–30 g/10 min | ISO 1133-1:2022 |
| Tensile yield stress | 24–30 MPa | ISO 527-2:2012 |
| Tensile modulus | 1,900–2,700 MPa | ISO 527-2:2012 |
| Flexural modulus | 1,700–2,400 MPa | ISO 178:2019 |
| Charpy notched impact, 23 °C | 3–8 kJ/m² | ISO 179-1:2010 |
| Heat deflection temperature, 0.45 MPa | 65–80 °C | ISO 75-2:2013 |
| Mould shrinkage, parallel | 1.0–1.5 % | ISO 294-4:2018 |
| Mould shrinkage, transverse | 1.2–1.8 % | ISO 294-4:2018 |
The values in the table are class-representative ranges drawn from published datasheets for comparable 10 wt.% talc-filled high-flow HDPE compounds; they are not lot-specific data. Mechanical properties should be re-measured on injection-moulded ISO 527-2:2012 Type 1A specimens produced under ISO 294-1 conditions because gate location, filler orientation, and mould temperature materially shift test results. Weld-line notched Charpy values can be as low as 50% of the homogeneous-specimen value and should be evaluated separately when weld lines are present.
Replacing unfilled HDPE with Breplast HDPE TS COR HF T10 increases tensile modulus by a factor of about 2.0–3.0 and reduces mould shrinkage by roughly 30–50 %. These changes permit thinner wall sections, lower part mass, and improved flatness. However, the high-flow modification and talc filler reduce Charpy notched impact and environmental stress cracking resistance relative to unfilled HDPE. Where a 20 wt.% talc-filled HDPE is replaced, this 10 wt.% grade offers lower compound viscosity, lower density, reduced screw and barrel abrasion, but lower modulus and higher shrinkage. It is not a direct substitute for 20 wt.% mineral or glass-fibre grades in structural brackets or under-bonnet components requiring heat deflection above 100 °C. Compared with polypropylene-based 10 wt.% talc compounds, HDPE TS COR HF T10 has class-representative lower density and better resistance to hydrolytic degradation, but its heat deflection temperature under 0.45 MPa is typically 30–40 °C lower and its tensile strength is lower.
Die swell is lower than unfilled HDPE at equal melt flow rate; this supports closer control of extrudate cross-section but reduces the material’s ability to fill thick sections by barrel enlarging. Shear viscosity measured at 230 °C is higher than unfilled HDPE of similar melt index in low-shear regions, so injection pressure demand is part-dependent and should be established with cavity pressure sensors. On hydraulic machines, peak cavity pressure for 2 mm plaque tools typically falls between 300 and 600 bar when using a 40 °C mould. Because the mineral filler increases abrasion, a nitrided or bimetallic barrel and hardened screw tip are recommended for long production runs.
Environmental stress cracking resistance is the limiting design property for parts exposed to surfactants, polar organics, or package contents. Talc particles create stress concentrations at the matrix interface; weld lines and sharp gate vestiges further reduce local cracking resistance. Testing is conducted with ASTM D1693-15, condition B, in 10% Igepal CO-630 at 50 °C. For this product class, specimens may fail in 1–24 h depending on residual stress and weld-line location, whereas unfilled high-density polyethylene with lower melt index may exceed 100 h. Consequently, closure and container prototypes should be validated under end-use chemical contact, not by material class alone. Strong oxidising acids, chlorinated solvents, and some aromatic hydrocarbons attack the matrix and should be excluded unless chemical compatibility is demonstrated under ASTM D543-21.
For food-contact applications, the base polymer and additives must be verified under 21 CFR 177.1520 and Regulation (EU) 10/2011. A grade-specific declaration of compliance is required because the talc source, surface treatment, and stabiliser package determine migration behaviour. Heavy metal restrictions should be assessed against Directive 2011/65/EU Annex II and REACH Regulation (EC) No 1907/2006; the absence of a supplier statement is not sufficient for conformity. The material is not classified as a pressure pipe or gas pipe compound under ISO 12162:2009 or ISO 9080 because high melt flow and filler reduce slow-crack growth resistance relative to PE100 and PE80 grades.
