| HS Code | 375525 |
| Materialtype | Polylactic Acid (PLA) based compound |
| Renewablecontent | 75% |
| Compostability | Compostable according to EN 13432 |
| Density | 1.30 g/cm³ |
| Meltflowrate | 15 g/10 min at 190°C/2.16 kg |
| Tensilemodulus | 3500 MPa |
| Tensilestrength | 50 MPa |
| Elongationatbreak | 5% |
| Flexuralmodulus | 3800 MPa |
| Flexuralstrength | 80 MPa |
| Charpynotchedimpactstrength | 3 kJ/m² |
| Charpyunnotchedimpactstrength | 15 kJ/m² |
| Heatdeflectiontemperatureat0 45mpa | 90°C |
| Heatdeflectiontemperatureat1 8mpa | 65°C |
| Vicatsofteningtemperature | 95°C |
| Meltingtemperature | 170°C |
| Glasstransitiontemperature | 60°C |
As an accredited INZEA F2 HTS 451 Rigid 75% Renewable Compostable Polylactic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 25 kg sealed moisture-barrier paper sacks, palletized, each labelled INZEA F2 HTS 451 Rigid 75% Renewable Compostable Polylactic Acid. |
| Container Loading (20′ FCL) | INZEA F2 HTS 451 Rigid 75% Renewable Compostable Polylactic Acid is palletized and loaded into a 20′ FCL container for shipment. |
| Shipping | INZEA F2 HTS 451 ships as non-hazardous solid resin pellets in moisture-barrier bags, packed in 25 kg bags or octabins on pallets. Store dry at ambient temperature, avoiding direct sunlight, excessive heat, and humidity. Standard road, sea, or air freight applies; no special dangerous goods labeling required. |
| Storage | Store INZEA F2 HTS 451 in a cool, dry, well-ventilated area, away from direct sunlight, heat, and moisture. Keep containers tightly sealed to prevent hydrolysis and contamination. Avoid strong oxidizers. Maintain temperatures below 30°C and low relative humidity. Reseal opened bags promptly. Use first-in, first-out stock rotation; protect from physical damage. Do not store near food, feed, or incompatible materials. |
| Shelf Life | Shelf life: 24 months when stored sealed in original packaging, cool, dry, away from moisture, heat, and direct sunlight. |
INZEA F2 HTS 451 Rigid is a rigid polylactic acid compound with a renewable carbon fraction of 75% and industrial compostability claims managed through EN 13432:2000, ASTM D6400, and ISO 17088. The composting standard chain includes ISO 14855 for ultimate aerobic biodegradation, ISO 20200 for disintegration, and OECD 208 for terrestrial plant ecotoxicity; compliance under these methods does not imply home-compost, soil-biodegradable, or marine-biodegradable status. The mechanical and thermal processing envelope is different from petroleum-based rigid polymers because the material is shear-sensitive at melt temperatures above 210°C and moisture-sensitive above 250 ppm residual water. Downstream use is therefore limited to rigid conversion processes where predrying, screw geometry, and mold or roll temperatures are treated as a single interdependent system.
Compliance anchors for single-use cutlery and rigid food service ware are EN 13432:2000 for industrial compostability in the European market and ASTM D6400 for North America; for food-contact function, the article is evaluated under Regulation (EU) No 10/2011 with an overall migration limit of 10 mg dm−2, while U.S. market clearance is tied to the grade-specific food-contact notification rather than a general plastic monograph. The material is dosed at 100 wt% as supplied; a PLA-carrier color masterbatch may be added at 2–4 wt%, and masterbatch loading above 5 wt% is not recommended because weld-line elongation measured under ISO 527-2 can separate from the unfilled reference. Drying requires desiccant-bed hopper dryers with air dew point at least -40°C, pellet bed temperature 80°C, and residence time 4 h, targeting residual moisture below 250 ppm; if ambient RH exceeds 60%, open resin hoppers should not remain unmounted beyond 2 h. Injection molding on hydraulic or servo-driven presses from 1200 kN to 2500 kN clamp force with a three-zone screw of compression ratio 2.5:1 runs with melt temperature 190–210°C, mold temperature 80–100°C, back pressure 3–7 bar, and injection speed profiled from 30 mm s−1 to 80 mm s−1 to prevent jetting in fork tines and spoon bowl rims. Low mold temperatures below 80°C quench amorphous skins too quickly and produce weld-line embrittlement at the handle-to-bowl junction; residence time above 8 min at 210°C raises lactide content and causes silver streaking. Terminal article types include forks, knives, spoons, sporks, portion-service tongs, and beverage stirrers for cold or warm food-contact duty up to 60°C; heavy-load steak cutting or long-term hot liquid immersion is outside the stable operating envelope.
Thermoformed rigid food packaging from INZEA F2 HTS 451 Rigid starts on a single-screw sheet extrusion line equipped with a barrier screw, melt pump, and flexible-lip flat die; the vertical three-roll calender stack is maintained at 30–50°C to generate sheet thickness between 0.2 mm and 0.8 mm without uncontrolled crystallinity haze. The extrusion formulation is 100 wt% virgin material at start-up, with edge-trim regrind granulated, dried, and reincorporated up to 15 wt%; regrind above 20 wt% reduces melt strength enough to cause sheet sag in the plug-assist oven and thinning at the tray bottom corners. Food-contact status is verified under Regulation (EU) No 10/2011, including an overall migration limit of 10 mg dm−2; the finished package is labeled as industrially compostable only if the complete article passes EN 13432:2000 disintegration within 12 weeks and the resulting compost passes OECD 208 terrestrial plant growth testing. Contact-heat thermoforming ovens are set to sheet surface temperatures of 90–110°C; plug-assist stations use syntactic foam plugs with temperature control, and forming pressure is held at 4–6 bar to limit springback. Terminal products include bakery clamshells, fresh-produce punnets, chilled deli containers, and cold-pack trays. Hot-fill service above 60°C or microwave reheating falls outside the stable operating range; mineral-filled nucleated PLA grades, not this grade, are required for applications requiring higher dimensional stability under ISO 75-2 Method B.
Agricultural clips and fasteners molded from INZEA F2 HTS 451 Rigid are controlled by REACH Article 33 communication duties and by applicable product- and packaging-specific end-of-life law; industrial compostability is assessed under EN 13432:2000, which is not evidence of biodegradation in soil or freshwater. If a soil-degradation claim is requested, the finished article must be tested under ISO 17556:2019; this grade is not pre-certified for soil contact or field burial. The molding charge is 100 wt% as supplied; UV-stabilizer masterbatch may be added at 1–3 wt% for multi-season greenhouse exposure, but any stabilizer chemistry must be re-screened against the compostability certificate because some hindered-amine stabilizers can extend disintegration beyond the 12-week pass window. Injection molding uses melt temperature 180–200°C, mold temperature 30–60°C, and wall thickness 1.5–4.0 mm to balance bending stiffness during installation with enough flexure to avoid fracture in cold frames. Terminal finished parts include vine clips, tomato support rings, greenhouse side-netting fasteners, and tree stake ties. Continuous load under high humidity and elevated temperature should be validated by creep testing under ISO 899-2; parts that must carry fruit load through a full season are typically designed with structural ribs because unreinforced PLA clips can creep at temperatures above 35°C and 80% RH.
Cosmetic packaging applications for INZEA F2 HTS 451 Rigid are regulated by REACH Annex XVII restrictions and by packaging heavy-metal limits under Directive 94/62/EC, which restrict the sum of lead, cadmium, mercury, and hexavalent chromium to 100 ppm by weight; the package article must also meet the general safety obligations of the cosmetics regulatory framework without substituting for cosmetic formulation testing under Regulation (EC) No 1223/2009. The processing formulation is 100 wt% as supplied, with 2–4 wt% PLA-carrier color or TiO₂ masterbatch for opacity; pigment loadings above 5 wt% reduce surface gloss and alter melt viscosity enough to require holding-pressure adjustment. Injection molding on high-polish A1-surface cavities uses mold temperature 80–100°C, melt temperature 190–210°C, holding pressure 600–900 bar, and cooling time 12–20 s for a 2 mm wall section; hot-runner temperature should remain below 215°C to avoid lactide formation in the runner. Terminal parts include single-wall jar bases, closure shoulders, compact trays, and transparent insert windows. The material is not compatible with solvent-based decorative lacquers containing ethyl acetate or acetone; aqueous acrylic overprint varnishes are preferred if surface decoration is required, and adhesion must be validated by cross-cut testing under ISO 2409.
Personal-care tool handles and disposable razor bodies can be injection molded from INZEA F2 HTS 451 Rigid where the claim is rigid bio-based content and industrial compostability at the article level. Material compliance is driven by REACH Annex XVII for restricted substances in consumer articles and by EN 13432:2000 if the finished handle or razor body is marketed as compostable; no medical-grade claim applies unless the article is separately evaluated under ISO 10993-series biocompatibility procedures. The dosing ratio is 100 wt% for the rigid portion; in two-shot molding with a soft-touch grip, a compostable TPE certified to EN 13432:2000 may be overmolded at 20–35 wt% of the total part mass. Injection molding uses a rotary platen machine with mold temperature 60–80°C, melt temperature 185–205°C, and wall thickness 1.8–3.0 mm to avoid sink at the core-handle junction. Terminal articles are toothbrush handles, disposable razor handles, hairbrush bodies, and nail-care shapes. Repeated exposure to hot wet environments above 50°C with alkaline detergents is outside the operating envelope; these articles are not dishwasher-safe and chemical resistance testing should follow ISO 175 immersion protocols before any consumer durability claim is attached to the part.
Single-serve hot beverage capsule bodies are injection molded from INZEA F2 HTS 451 Rigid as a compostable rigid shell for short-shelf-life coffee, tea, and cocoa formats. The compliance set includes Regulation (EU) No 10/2011 for food-contact migration with an overall migration limit of 10 mg dm−2 and EN 13432:2000 for the finished capsule; for U.S. distribution, the grade-specific FDA food-contact notification governs the shell resin. The molding formulation is 100 wt% as supplied in monolayer capsules; a barrier additive or oxygen-scavenging masterbatch should not be added without re-testing disintegration because mineral fillers and scavengers can disperse across the 12-week compost window and affect ecotoxicity. High-speed injection molding on 16-cavity or 32-cavity cold-runner tools uses melt temperature 190–210°C, mold temperature 90°C, wall thickness 0.3–0.8 mm, and cycle time 8–12 s; gate location must be engineered to avoid weld lines along the capsule rim where the lid film is heat-sealed. Terminal products are single-serve capsule bodies for filled coffee, tea, and cocoa, with lidding films selected from independently certified compostable sealants. Published monolayer oxygen and moisture transmission data for this specific configuration are limited; for roasted coffee with shelf life beyond 6 months, barrier modelling on the finished wall thickness is mandatory, and a multilayer compostable barrier solution may be required. Pressure-bearing refillable capsule designs and microwave-assisted extraction formats are outside the stable envelope.
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INZEA F2 HTS 451 Rigid 75% Renewable Compostable Polylactic Acid is a polylactic acid-based thermoplastic compound specified for rigid injection-moulded articles in which renewable carbon content and industrial compostability are functional requirements. The model designation separates the formulation, thermal stabilization, and rigid grade type: F2 identifies the rigid PLA series, HTS indicates a high-temperature-stabilized variant, and 451 identifies the specific melt-flow and additive package within the series. The 75% renewable carbon figure is measured by accelerator mass spectrometry under ASTM D6866-22 Method B, not by feedstock mass balance. Representative uses include rigid packaging components, caps and closures, cosmetic housings, plant pots, point-of-sale display fixtures, and technical spools in applications where industrial composting collection is available. The product is intended for injection moulding and profile extrusion lines that already process PLA, polypropylene, or impact-modified styrenics, with tooling and screw configurations adjusted for higher PLA melt viscosity and moisture sensitivity.
Because the grade is classified as rigid, flexural modulus determined under ISO 178:2019 is expected to exceed 3.0 GPa, while tensile modulus and tensile strength are characterized under ISO 527-2:2012 using Type 1A specimens. Published reference data for unmodified PLA homopolymer place tensile modulus between 3.0 GPa and 3.5 GPa, tensile strength between 50 MPa and 70 MPa, and flexural modulus between 3.0 GPa and 4.0 GPa. The HTS package may shift elongation at break downward while improving retention of storage modulus at elevated temperature; exact values are batch-specific and must be confirmed against the certificate of analysis. Because the high-temperature stabilization package can include nucleating agents, mineral fillers, or crystallization promoters, the final part should be evaluated under ISO 75-2:2013 Method B rather than inferred from unmodified PLA data.
The 75% renewable carbon content does not imply that the balance of formulation mass is of fossil origin. The remaining 25% may include non-renewable thermal stabilizers, nucleating agents, processing aids, or masterbatch carriers that are not detectable by radiocarbon analysis. If a finished article is required to carry a 100% renewable carbon claim, the final part should be re-tested under ASTM D6866-22 because processing additives, printing inks, or adhesives may alter the ratio. Compostability is certified only for industrial aerobic composting environments. Under EN 13432:2000 and ISO 17088:2012, the material must demonstrate biodegradation, disintegration, and absence of ecotoxicity. Disintegration is typically assessed by retaining no more than 10% of dry mass on a 2 mm sieve after 12 weeks of controlled aerobic composting. Home composting is not covered unless the product carries a separate certification.
| Standard | Designation | Relevance |
|---|---|---|
| EN 13432:2000 | Packaging recoverable through composting and biodegradation | Industrial compostability certification framework |
| ISO 17088:2012 | Specifications for compostable plastics | International compostability specification |
| ASTM D6400-21 | Labeling of plastics designed for aerobic composting in municipal or industrial facilities | North American compostability labeling |
| ASTM D6866-22 | Radiocarbon analysis for biobased carbon content | Quantification of the 75% renewable carbon claim |
| ISO 178:2019 | Determination of flexural properties | Rigid-grade classification |
| ISO 527-2:2012 | Determination of tensile properties | Tensile modulus and tensile strength |
| ISO 75-2:2013 | Determination of temperature of deflection under load | Heat resistance under load |
| ISO 1133-1:2022 | Melt mass-flow rate | Rheology and process control |
| ISO 16929:2021 | Pilot-scale disintegration under composting conditions | Disintegration assessment |
For injection moulding lines with desiccant drying, the feedstock should be dried at 80 °C for 4 h to a residual moisture target of <250 ppm before entering the feed throat. PLA absorbs moisture from ambient air; at relative humidity above 60%, unprotected pellets can exceed 0.25 wt% water within hours. Moisture above this threshold initiates hydrolytic chain scission at melt temperatures above 190 °C, producing visible silver streaks, lowered melt viscosity, and reduced knit-line strength. A desiccant dryer with a dew point below −30 °C is therefore standard. Hopper loaders should not recycle hot return air from the moulding machine, and open resin containers should be purged with dry air or nitrogen when ambient humidity exceeds 60%. In production-scale moulding of PLA compounds, hopper residence time should be short enough that pellets do not remain open to humid plant air for more than 30–60 min.
The processing boundary is controlled primarily by melt residence time, moisture, and local shear heating. PLA-based melts exhibit higher viscosity at low shear rates than polypropylene; hot-runner pressure drops at the gate can exceed the available injection pressure when moulds designed for PP are used without gate geometry changes. General-purpose screws with a compression ratio of 2.5:1 to 3:1 and an L/D ratio of 20:1 or greater are commonly used; high-shear screws with intensely restrictive mixing sections may generate local temperature overshoot. Melt temperatures between 190 °C and 210 °C are typical for unmodified PLA, while high-temperature-stabilized grades may be processed up to 220 °C for short residence times. Mold temperatures between 20 °C and 60 °C control crystallization and part ejection; for rapid-cycle thin-wall articles, lower mould temperatures reduce cycle time but may produce amorphous parts with lower heat resistance.
Tooling designed for the material should avoid dead-stop zones in the manifold and check valve. PLA compounds are sensitive to stagnation; degraded polymer accumulates in poorly purged hot-runner channels, producing black specks and inconsistent shot viscosity. Gate dimensions below 1 mm can generate high shear heating and local temperatures well above the set barrel profile. Vent depths are typically maintained between 0.01 mm and 0.03 mm for thin-wall PLA injection, with evacuation of the melt cushion held constant. Clamp-force requirements follow cavity pressure; for consumer rigid articles, injection machines with clamp force between 800 kN and 3,000 kN are generally adequate when cavitation and projected area are evaluated, but the exact requirement is part-dependent.
| Parameter | Typical setting | Measurement/equipment |
|---|---|---|
| Pre-drying temperature | 80 °C | Desiccant dryer, dew point <−30 °C |
| Pre-drying time | 4 h | Moisture analyzer, target <250 ppm |
| Melt temperature | 190–210 °C; up to 220 °C for short residence | Infrared melt probe or air-shot measurement |
| Mold temperature | 20–60 °C | Thermoregulation unit, coolant inlet temperature |
| Screw compression ratio | 2.5:1–3:1 | General-purpose injection screw |
| Residual moisture maximum | <250 ppm | Karl Fischer titration or moisture analyzer |
At barrel temperatures above 220 °C, residence time must be limited to 5 min or less. Extended holding at 240 °C accelerates random chain scission and formation of lactide and oligomeric degradation products. The resulting melt exhibits higher melt flow rate under ISO 1133-1:2022 at 210 °C/2.16 kg, lower tensile strength, and more frequent gate-stringing or drool. The high-temperature stabilization package in HTS grades is designed to delay this degradation, but it does not eliminate thermal degradation at extreme conditions. A rheological audit of melt flow rate before and after moulding can detect chain scission; an increase of more than 10–15% from virgin pellet to purged shot suggests that the barrel profile, backpressure, or screw recovery speed should be reduced. Hot-runner manifolds should be purged at least every 15–30 min during stable production when running near the upper temperature boundary, and shutdown procedures should include a full displacement with fresh material.
Compared with standard PLA homopolymer, the HTS variant is differentiated by improved dimensional stability at elevated temperature and possibly a higher heat deflection temperature under load measured by ISO 75-2:2013 Method B. Unmodified PLA typically exhibits HDT-B between 50 °C and 60 °C at 0.45 MPa. High-heat PLA compounds can shift this range upward through nucleation, stereo-complexation, or reinforcing fillers, but published data for this specific F2 HTS 451 configuration is limited and must be obtained from the producer’s batch datasheet. Compared with petrochemical rigid polymers, this PLA compound carries a renewable carbon value under ASTM D6866-22 and industrial compostability under EN 13432:2000, whereas ABS, high-impact polystyrene, and polypropylene do not pass those biodegradation requirements. Compared with flexible biodegradable polyesters such as PBAT or PBS, the present rigid PLA grade exhibits higher flexural modulus but lower elongation and lower notched impact resistance; moulded parts requiring high impact should be evaluated under ISO 179-1:2010 Charpy or ISO 180:2019 Izod conditions rather than assumed equivalent to impact-modified styrenics. Unmodified PLA notched Izod values are commonly reported between 2 kJ/m² and 4 kJ/m²; impact-modified PLA can exceed 10 kJ/m²; the present rigid grade should not be assumed to be impact-modified without part-level testing.
Industrial aerobic composting facilities maintain thermophilic conditions above 50 °C, which is required for PLA hydrolysis above its glass transition temperature. At lower temperatures, PLA degrades slowly; in soil or marine environments, the material does not biodegrade at rates comparable to cellulosic materials. Under ISO 14855-1:2012 or EN 13432:2000 controlled composting tests, mineralization to carbon dioxide may exceed 90% after 180 days for qualified PLA compounds, but actual plant conditions can vary. The relevant claim for disposal labeling is not “biodegradable” in an unqualified sense but “compostable in industrial facilities according to EN 13432:2000” or equivalent national standards. Products should not be directed to organic-waste streams that reject compostable plastics, as not all municipal facilities accept PLA. Hydrolysis of PLA ester bonds is the rate-limiting step before microbial assimilation; below the glass transition temperature, the hydrolysis rate is substantially reduced, which explains why industrial compostability does not equate to home-compostability or soil biodegradation.
Operational boundaries include incompatibility with high-temperature hot-fill applications above the heat deflection temperature, with steam sterilization, and with solvents or adhesives containing ketones or strong alkalis. When food-contact use is intended, migration testing must be conducted under the relevant food-contact legislation; compostability certification does not establish food-contact compliance. The product should not be blended with conventional non-compostable polymers unless the finished article is no longer claimed compostable. For parts with wall thickness below 1 mm, melt-flow and cooling behavior should be characterized on production tooling because thin-wall filling performance depends on gate size, cavity venting, and screw recovery, not solely on melt flow rate. Regrind levels above 20–30 wt% may reduce melt viscosity and part toughness; production trials should establish the permissible regrind fraction for the specific article. The material is not formulated for prolonged outdoor exposure without UV stabilization; weathering standards such as ISO 4892-2:2013 or ASTM D4329-21 should be used to evaluate ultraviolet resistance. When parts are hot-stamped, pad-printed, or labeled, the inks and adhesives must be compostable if the entire article is to retain compostability under EN 13432:2000.
