| HS Code | 694855 |
| Bio Based Content | 45% |
| Material Type | Polylactic acid (PLA) |
| Form | Film |
| Flexibility | Flexible |
| Transparency | Transparent |
| Color | Clear |
| Density | Approximately 1.24 g/cm³ |
| Melt Flow Rate | Typical 3-6 g/10 min at 190°C/2.16 kg |
| Melting Temperature | Approximately 150-160°C |
| Glass Transition Temperature | Approximately 55-60°C |
| Tensile Strength | Typical 25-35 MPa |
| Elongation At Break | Typical >300% |
| Tensile Modulus | Typical 700-1200 MPa |
| Flexural Modulus | Typical 800-1200 MPa |
| Impact Strength | Typical 10-50 kJ/m² |
| Shore D Hardness | Typical 45-55 |
| Vicat Softening Temperature | Approximately 60°C |
| Processing Method | Blown film extrusion |
| Film Thickness Range | Typical 20-100 µm |
| Haze | Typical <10% |
| Light Transmittance | Typical >85% |
| Water Vapor Transmission Rate | Typical 100-200 g/m²/24h |
| Oxygen Transmission Rate | Typical 1000-2000 cm³/m²/24h |
| Seal Initiation Temperature | Approximately 80-90°C |
| Compostability | Compostable according to EN 13432 |
| Food Contact | Suitable for food contact |
| Renewable Content | 45% |
As an accredited INZEA FH08 BC50 Flexible 45% Bio-Based Transparent Film Polylactic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | INZEA FH08 BC50 supplied in 25 kg sealed moisture-barrier bags, palletized and shrink-wrapped for safe storage and transport. |
| Container Loading (20′ FCL) | 20′ FCL loading for INZEA FH08 BC50 bio-based PLA film: palletized rolls, dry container, moisture protection, approx. 18–20 MT net. |
| Shipping | INZEA FH08 BC50 is a non-hazardous, bio-based polylactic acid film. Ship in sealed, moisture-barrier packaging, palletized, away from heat, sunlight, and humidity. Not regulated for transport. Maintain ambient temperature; protect from physical damage. Handle with clean gloves to preserve transparency and surface quality. |
| Storage | Store INZEA FH08 BC50 film in a cool, dry, well-ventilated area away from direct sunlight, heat, moisture, and ignition sources. Keep in original sealed packaging to prevent humidity uptake and contamination. Recommended conditions: 10–30°C, relative humidity below 50%, protected from UV, dust, and physical damage. Avoid prolonged storage near oxidizers or incompatible chemicals. Rotate stock and use within supplier shelf life. |
| Shelf Life | Shelf life is typically 12 months in original unopened packaging, stored cool, dry, protected from moisture, heat, and direct sunlight. |
For INZEA FH08 BC50 Flexible 45% Bio-Based Transparent Film Polylactic Acid, cast film extrusion for flexible food packaging requires desiccant drying of the granulate to a residual moisture content below 250 ppm prior to plastication. A desiccant wheel dryer with a dew point of -40°C and an inlet air temperature of 80°C over 4 h is the standard starting condition; if granulate has been stored in ambient conditions above 60% RH, drying time is extended to 6 h. Moisture above 250 ppm accelerates hydrolytic chain scission at melt temperatures, producing localized viscosity loss, gel defects, and pinholes in films from 20 µm to 50 µm. Barrel temperature profile from feed to die is typically maintained between 170°C and 210°C; a flexible PLA compound containing impact modifiers or plasticizers should not be held above 220°C for more than 5 min because lactide reformation and yellowing increase. Die gap is set between 0.5 mm and 0.8 mm, air gap is kept short, and chill roll temperature is controlled at 15°C to 25°C. Haze measured per ASTM D1003-21 can exceed 5% if chill roll temperature drifts above 30°C or if contact roll pressure is insufficient to quench the web. For food contact, the final film is tested under Commission Regulation (EU) No 10/2011, Article 12, with an overall migration limit of 10 mg/dm²; aqueous foods are tested with simulant A (10% ethanol) and fatty foods with simulant D2 (vegetable oil). Specific migration limits are checked against Annex I, Table 2. US FDA status for INZEA FH08 BC50 must be verified against the grade-specific Food Contact Notification or threshold of regulation because PLA as a base polymer does not automatically clear plasticizers, nucleating agents, or processing aids. The bio-based carbon content of 45% is determined according to ASTM D6866-22 or ISO 16620-2:2019, but a bio-based carbon value alone does not establish compostability or food-contact compliance. Slip and antiblock masterbatches must be selected from food-contact-approved grades, and wound film tension is tapered from 1.0 N/mm at the core to 0.4 N/mm at the outside to reduce blocking. End products include transparent bakery window film, produce bag overwrap, and flexible flow-pack for fresh vegetables where the packaging specification requires EN 13432:2000 compostability certification.
| Application area | Standard/regulation | Test designation | Critical value/condition |
|---|---|---|---|
| EU food contact | (EU) No 10/2011 | Article 12, Annex I, Table 2 | Overall migration ≤ 10 mg/dm² |
| Industrial compostability | EN 13432:2000 | ISO 14855-1 | ≥ 90% disintegration in 12 weeks at 58±2°C |
| Biobased carbon content | ASTM D6866-22 | Accelerator mass spectrometry | 45% biobased carbon |
| Film haze | ASTM D1003-21 | Haze percentage | < 5% |
Soil contact performance of a PLA-based flexible film with 45% bio-based carbon under ASTM D6866-22 is not automatically soil-biodegradable. EN 13432:2000 and ASTM D6400-23 certification cover industrial composting at 58±2°C, not ambient soil degradation. In a 12 µm to 25 µm transparent mulch film, hydrolytic degradation in soil at 20°C to 30°C is slow; fragmentation alone does not satisfy ISO 17556 soil biodegradation within one crop cycle. Published data for this specific FH08 BC50 configuration in soil is limited. If the film is used as a short-season mulch, thickness should be increased to 20 µm minimum, and blown film extrusion should be run with a blow-up ratio between 2.0:1 and 2.5:1 because melt strength drops sharply above 195°C. Film intended for mechanical soil incorporation after harvest should be tested per ISO 17556 under actual field soil temperature and moisture conditions; a laboratory disintegration result at 58°C cannot be extrapolated to soil service. The operational boundary for this application is therefore narrow: the film functions as a transparent mulch in the season, but end-of-life claims must specify industrial composting rather than soil biodegradation unless field test data demonstrate otherwise.
Shrink label stock from this transparent PLA compound is produced by extruding a flat cast sheet, followed by transverse direction orientation at a stretch ratio between 1.5:1 and 3.0:1. Shrink initiation for PLA typically begins between 60°C and 65°C, with maximum shrinkage of 50% to 60% at 80°C in a hot air or steam tunnel. Shrink tension measured per ASTM D2732-23 must be balanced against container crush resistance; excessive shrink force can distort thin-wall PET bottles, so the shrink label is tested on the actual container geometry rather than free-shrink film alone. Corona treatment to a minimum surface energy of 38 dyn/cm is required before printing; water-based or UV flexographic inks are preferred because aggressive solvent systems can swell or cloud the PLA surface. Seam formation uses a solvent or heat-seal process; if solvent seaming is used, the solvent must be a controlled mixture, typically a low-molecular-weight ester or ketone blend, and drying must be complete before film winding to prevent blocking. The tenter frame used for transverse orientation includes preheat, stretching, annealing, and cooling zones; if annealing is omitted, post-winding shrinkage occurs at warehouse temperatures above 35°C. The end products are beverage sleeves, household product labels, and tamper-evident sleeve labels for personal care bottles. The limiting factor in production is not shrink percentage but shrink force consistency; variations in transverse orientation temperature across the web produce bands of uneven shrinkage that are detected only after the sleeve passes through a steam tunnel at 80°C to 90°C.
When reverse-printed transparent PLA film is laminated to paper or paperboard, adhesive selection and cure temperature become the controlling variables. A flexible 45% bio-based PLA film can serve as the outer web in a multilayer lamination for folding cartons, book covers, or windowed cartons. Solventless polyurethane adhesives are applied at coat weights of 1.5 g/m² to 2.5 g/m², and lamination nip temperature is held below 45°C to prevent heat-induced shrinkage and loss of print register. Film tension is controlled below 0.5 N/mm; excessive tension creates transverse wrinkles and can initiate edge tears at slitting. Adhesion measured per ASTM F904-16 should exceed 0.8 N/15 mm before the laminate is converted. If adhesion falls below this threshold, the corona-treated PLA surface should be checked at 38 dyn/cm minimum, and the adhesive ratio should be verified for moisture ingress. Adhesive systems containing free amine catalysts are not recommended; residual amines accelerate ester cleavage in PLA under humid aging and reduce laminate durability. This application is shallow in terms of processing equipment complexity but carries a hidden incompatibility risk: lamination adhesives that cure at temperatures above 50°C can shrink the PLA web enough to shift registered artwork by more than 0.5 mm on a 700 mm wide sheet.
Thermoforming of flexible transparent PLA sheet into trays or blisters is constrained by the glass transition temperature of the polymer. The sheet surface must reach 75°C to 95°C for adequate forming; below 65°C, the sheet tears or stress-whitens at corners; above 105°C, crystallization and haze increase rapidly. A step ramp with infrared ceramic elements and a soak station is used to distribute heat through a 0.3 mm to 0.8 mm sheet. Mold temperature is kept between 30°C and 45°C; cycle times for PLA are longer than PET because PLA has lower thermal conductivity and slower stress relaxation. Plug assist should be heated to 60°C and advanced at speeds below 300 mm/s to reduce corner thinning and stress whitening. Clamp force on a shuttle thermoformer must be sufficient to hold the sheet without excessive tension; a sheet surface temperature gradient greater than 5°C across the forming area produces uneven wall thickness and warpage after trimming. Lidding film seal initiation should be below 110°C; PLA tray distortion occurs when seal bars exceed 120°C for dwell times longer than 0.7 s. The end products are fresh produce trays, blister packs for dry goods, and clear clamshell-type inserts where the pack is not subjected to hot-fill or retort. Published data for this specific FH08 BC50 configuration in thermoforming is limited; the ranges above are starting points for a flexible PLA transparent film and must be confirmed on the production line.
| Operation | Equipment parameter | Starting range | Measurement/standard |
|---|---|---|---|
| Desiccant drying | Dew point | -40°C to -20°C | Residual moisture <250 ppm |
| Cast film barrel profile | Feed to die | 170°C to 210°C | Melt temperature ≤220°C |
| Chill roll | Surface temperature | 15°C to 25°C | ASTM D1003-21 haze <5% |
| Thermoforming preheat | Sheet surface | 75°C to 95°C | Forming depth/plug force |
| Shrink tunnel | Hot air/steam | 80°C to 90°C | ASTM D2732-23 |
Permeation behavior of a 30 µm monolayer PLA film creates a modified atmosphere for fresh-cut produce when the package surface area to product weight ratio is engineered. PLA has an oxygen transmission rate that is typically lower than LDPE and higher than PET; actual values must be measured per ASTM D3985-24 at 23°C and 0% RH for barrier packaging specification because the 45% bio-based compound contains modifiers that can shift permeation. Water vapor transmission rate is measured per ASTM F1249-20 at 37.8°C and 90% RH. Laser perforation with hole diameters between 50 µm and 150 µm is common for fresh-cut lettuce; hole density controls O₂ and CO₂ partial pressures. Without perforation, PLA film can induce anaerobiosis in high-respiration produce if package O₂ drops below 2%. The process boundary is that a monolayer PLA film is not a barrier film; it is a breathable film. For low-respiration produce such as whole apples or citrus, a 25 µm to 35 µm monolayer film may allow sufficient gas exchange without perforation; for high-respiration broccoli florets, mechanical perforation is required. End products include fresh-cut salad bags, herb packaging, and transparent produce pillow packs. The window for success is narrow because headspace equilibrium changes with product fill weight, storage temperature, and film gauge; pack trials must be run at the actual cold chain temperature, not at ambient.
PLA film used as clear overwrap for soap cartons, cosmetics, and personal care sachets must seal at temperatures that do not warp the packaged item or melt a coated board surface. Coextruded sealant layers or lacquer coatings lower seal initiation to 80°C to 100°C; seal strength after 0.5 s dwell and 2 bar jaw pressure is evaluated per ASTM F88/F88M-21. Hot-tack measured per ASTM F1921-18 at 90°C should exceed 0.2 N/15 mm; if hot-tack is below this threshold, fin-seal wheel speed must be reduced. Silicone release agents from upstream printing, cutting, or carton coating must be controlled below 0.1 mg/m² on the film surface because silicone prevents seal adhesion and creates channel leaks along the sealing edge. The overwrap machine runs a cold fin-seal and hot knife cut-off system; blade temperature is set below 160°C to minimize beading and edge haze. Film slip must be controlled with an antiblocking agent whose migration is acceptable for the end-use; excessive slip reduces coefficient of friction below 0.2 and causes web tracking instability on high-speed overwrap machines. End products include cosmetic carton overwrap, personal care sachet outer film, and clear overwrap for premium soap boxes. This application is less sensitive to oxygen barrier and more sensitive to surface cleanliness and seal consistency; a single silicone-contaminated batch produces higher reject rates than any film gauge variation within ±2 µm.
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INZEA FH08 BC50 Flexible 45% Bio-Based Transparent Film Polylactic Acid is a polylactic acid-based compound intended for cast film extrusion where optical transparency, flexibility, and a specified renewable carbon fraction are required in the final film structure. The product designation FH08 identifies a film-grade formulation; the suffix BC50 indicates a bio-based carbon content claim of 45% determined according to ISO 16620-2:2019 or radiocarbon-based ASTM D6866-22 Method B. The polymer matrix is based on poly(lactic acid), modified by a non-rigid fraction to reduce the inherent brittleness of unmodified polylactic acid film. Unlike standard PLA film grades with elongation at break below 10% under ASTM D882, the formulation is designed for flexible drape sufficient for flow-wrap, sleeve labels, and packaging windows. The bio-based carbon fraction is a compositional property, not an automatic indicator of compostability, food-contact clearance, or marine biodegradation. End-use certification must be validated on the finished converted film because printing inks, laminating adhesives, and coatings alter both barrier behaviour and regulatory status. The nominal density is reported in the 1.22–1.26 g/cm³ range according to ISO 1183-1:2019, consistent with flexible PLA-based compounds. During compounding on co-rotating twin-screw extruders with L/D ratios from 44:1 to 52:1, incomplete dispersion of the modifier fraction can appear later as gel particles and surface defects in films below 30 µm thickness.
Cast film extrusion of INZEA FH08 BC50 is performed on conventional single-screw extruders with an L/D ratio between 24:1 and 30:1. A barrier screw geometry and a closed-loop melt-pressure transducer are recommended because PLA melt viscosity is shear-sensitive and hydrolytically unstable. The barrel temperature profile begins with a hopper throat at 30–40 °C and rises through the compression section from 160 °C to 185 °C, with the metering zone and die adapter maintained between 190 °C and 205 °C. Melt temperature measured by an immersion thermocouple at the die exit should not exceed 210 °C for residence times beyond 8–10 min; above this threshold, poly(lactic acid) undergoes chain scission and lactide re-formation, producing a yellowness shift and a measurable reduction in melt strength. The melt flow rate of the grade is commonly reported in the 4–10 g/10 min range at 190 °C/2.16 kg using ISO 1133-1:2022. Lot-specific certificates should be reviewed before setting screw speed because a shift of ±1.5 g/10 min between lots is sufficient to alter die pressure and gauge uniformity on cast film lines running faster than 50 m/min. Die pressure normally ranges from 50 bar to 120 bar depending on die gap, feedblock design, and output; sustained oscillation exceeding ±10 bar within the first hour of stable operation indicates inconsistent feed or moisture pickup.
The chill roll stack is operated with polished rolls at 15–25 °C and an air gap of 5–15 mm from the die lip. Rapid quenching limits spherulitic crystal growth and preserves low haze, but roll temperatures below 10 °C can generate condensation under ambient relative humidity above 60%, leading to surface defects. Roll temperatures above 30 °C promote haze development and blocking in wound stock. For thicknesses between 30 µm and 80 µm, cast film speeds of 20–80 m/min are typical, but draw ratio should remain below 10:1 to avoid transverse gauge variation and edge tearing. The processing window is narrower than that of polyolefins; stable melt temperature and moisture content matter more than absolute barrel setpoint. Published data for this specific grade at high draw ratios is limited; line-specific validation is required when output exceeds pilot-scale throughput on a given die width.
Mechanical evaluation of INZEA FH08 BC50 is performed on 50 µm cast film conditioned at 23 °C and 50% RH for 48 h according to ISO 291:2008. Tensile properties are measured by ASTM D882 or ISO 527-3:2018. Supplier literature for flexible PLA film grades reports machine-direction tensile strength at break in the 35–50 MPa range and elongation at break above 150%, with values exceeding 250% in some formulations depending on modifier loading and film thickness. By contrast, unmodified amorphous PLA film often exhibits elongation at break below 5% under the same test geometry. Elmendorf tear resistance measured by ASTM D1922 is generally in the 5–15 N/mm range for 50 µm gauge; values shift with molecular orientation and plasticizer content. Optical haze measured by ASTM D1003 Procedure A on 50 µm film is typically below 10%, and total luminous transmittance is generally above 88% at 550 nm using ASTM D1746 or ISO 13468-1:2019.
Barrier performance follows the PLA envelope. Water vapour transmission rate is measured at 38 °C and 90% RH according to ASTM F1249 or ISO 15106-3; for 30 µm film, values commonly fall between 15 g/m²·day and 40 g/m²·day. Oxygen transmission rate at 23 °C and 0% RH according to ASTM D3985 is reported between 500 cm³/m²·day·atm and 1000 cm³/m²·day·atm for 50 µm film, indicating moderate oxygen barrier relative to EVOH or PVDC. The product is therefore best applied where moisture sensitivity is not the primary protective requirement: bakery window film, fresh produce flow-wrap, sleeve labels, and overwrap structures in which a secondary barrier layer is present. Published data for this specific configuration is limited; the property envelope should be re-measured on the exact final film before package qualification.
| Property | INZEA FH08 BC50 | Unmodified PLA film | LDPE film |
|---|---|---|---|
| Bio-based carbon fraction | 45% by ISO 16620-2 | up to 100% polymer carbon | 0% |
| Tensile elongation at break | >150% by ASTM D882 | <10% by ASTM D882 | 300–600% by ASTM D882 |
| Haze on 50 µm film | <10% | <5% | 5–15% |
| Oxygen transmission on 50 µm film at 23 °C, 0% RH | 500–1000 cm³/m²·day·atm | 400–800 cm³/m²·day·atm | 2000–4000 cm³/m²·day·atm |
| Seal initiation temperature | 95–115 °C | 120–140 °C | 85–105 °C |
Table values are order-of-magnitude engineering references compiled from published supplier literature and standard-grade data; lot-specific certificates control for qualification.
Differential scanning calorimetry of the cast film according to ISO 11357-2 typically identifies a glass transition temperature near 55–60 °C and a cold crystallisation exotherm during heating. Rapid quenching from the melt suppresses crystallinity to preserve transparency, but post-crystallisation from exposure to temperatures above the glass transition causes shrinkage and haze. For applications requiring dimensional stability above 60 °C, annealing or heat-setting is required; however, annealing above 100 °C for more than 5 min increases crystalline content and reduces optical clarity. The film cannot be used as a shrink film without specifically designed orientation and annealing conditions because unmodified PLA film has a low shrink force compared with oriented polyolefins.
Moisture control is the primary failure mode in extrusion of INZEA FH08 BC50. Poly(lactic acid) undergoes hydrolytic chain scission when melt-phase water is present, reducing molecular weight and causing viscosity loss, bubble formation, and web instability. The resin should be pre-dried to a moisture content below 250 ppm as measured by ISO 15512:2019, using a desiccant dryer with a dew point at or below -40 °C and inlet air temperature between 70 °C and 80 °C. Typical drying time for sealed bags is 4–6 h; open storage at relative humidity above 60% for more than 30 min can reintroduce enough moisture to degrade melt quality. Hopper-recirculation dryers are preferred over static ovens because moisture regain in PLA is rapid. On production equipment, rising melt pressure at constant screw speed and constant feed rate, or a decrease in motor amps with no increase in output, indicates molecular weight loss and reduced melt viscosity rather than friction reduction. The same hydrolysis chemistry applies to regrind. Edge trim and start-up waste should be re-dried and limited to 20–30 wt% unless optical clarity requirements are relaxed. Warning signs before melt fracture include yellowing at the die lip, condensate accumulation on the air knife, and an increase in infrared carbonyl absorbance near 1750 cm⁻¹ in degraded material.
Storage stability of the pelletized compound depends on moisture barrier packaging and warehouse temperature. Sealed foil-lined bags prevent moisture regain during transport; pallets stored at 35 °C or higher can exhibit additive surface bloom, caking, or bridging in hoppers. Before introduction to the extruder, the pellets should be equilibrated to plant ambient temperature to avoid condensation. If condensation is visible on pellets transferred from cold storage to humid production halls, additional drying time may be required. These handling limitations are common to PLA-based compounds, but the flexible modifier fraction in INZEA FH08 BC50 can make surface tack more sensitive to storage history. Incoming quality checks should include moisture content, melt flow rate, and visual inspection for pellet agglomerates.
Seal initiation temperature for INZEA FH08 BC50 is typically observed between 95 °C and 115 °C on jaw sealers at 0.3 s dwell and 2 bar pressure. The exact sealing window depends on film thickness, corona treatment level, anti-block additive concentration, and sealer jaw geometry. Unlike LDPE, which maintains a broad sealing plateau, PLA-based films often present a narrow temperature separation between initiation and shrink-back or film sticking. Converters should map seal strength against jaw temperatures from 90 °C to 140 °C using ASTM F88/F88M before setting vertical form-fill-seal line speeds. Corona treatment to a surface energy of 38–42 mN/m is common to improve ink adhesion and lamination bond strength; the treatment decays faster than on polyolefin surfaces, so inline treatment immediately before printing is preferred. Slip agent migration kinetics in the PLA matrix can change the coefficient of friction over time at storage temperatures above 30 °C. Kinetic coefficient of friction measured by ASTM D1894 is usually in the 0.2–0.4 range but shifts upward under relative humidity above 70%. For hot-fill above 60 °C or retort conditions, the film is not suitable as a direct food-contact layer unless isolated from sustained thermal load by an outer heat-resistant substrate.
The bio-based carbon content of 45% does not establish suitability for direct food contact. INZEA FH08 BC50 must be evaluated in the final film structure against the applicable food-contact framework, such as FDA 21 CFR 175.300 for resinous and polymeric coatings or EU Regulation No 10/2011 with its migration limits for plastics intended to contact food. Specific migration testing is conducted according to EN 1186 and EN 13130 series methods under the intended time and temperature conditions; overall migration limits for many applications remain below 10 mg/dm². The film may contain slip agents, anti-block particles, and plasticizers; each additive must be positively listed or cleared for the intended food type and simulant. Industrial compostability of a finished package made from INZEA FH08 BC50 is not guaranteed by resin composition. Certification schemes such as EN 13432:2000 and ASTM D6400 apply to the entire packaging article and require disintegration, biodegradation, and ecotoxicity testing on the final decorated film. Home compostability, anaerobic digestion, and marine biodegradability are separate certifications with different temperature, time, and matrix requirements. Because the product contains a non-renewable modifying fraction, it should be described as partially bio-based rather than compostable or renewable unless the supplier provides the specific certificate for the exact lot and film structure.
For non-food industrial applications, supplier declarations for REACH and RoHS Directive 2011/65/EU should be obtained from the material manufacturer. PLA-based compounds are typically outside the authorisation list, but the modifying fraction may contain substances that require screening under the candidate list. Heavy metals limits for packaging are governed by 94/62/EC and its amendments; the sum of lead, cadmium, mercury, and hexavalent chromium should remain below 100 mg/kg in the final article. These regulatory limits apply to the finished packaging material, not solely to the resin.
| Claim | Reference standard | Condition or threshold |
|---|---|---|
| Bio-based carbon fraction | ISO 16620-2:2019 | 45% renewable carbon |
| Radiocarbon bio-based content | ASTM D6866-22 Method B | 45% biogenic carbon |
| Industrial compostability | EN 13432:2000 / ASTM D6400 | final article, not resin alone |
| Food contact migration | EU Regulation No 10/2011; EN 1186 | OML 10 mg/dm² |
| Moisture content before extrusion | ISO 15512:2019 | <250 ppm |
INZEA FH08 BC50 differs from high-bio-based PLA grades in both carbon fraction and processing discipline. A 100% bio-based PLA homopolymer is not automatically flexible; unmodified PLA is brittle and generally requires orientation or impact modification to exceed 10% elongation at break. The flexible behaviour of INZEA FH08 BC50 is obtained through a compounding strategy that adds a non-rigid modifier fraction, which also reduces the bio-based carbon fraction to 45%. Compared with fossil-based LDPE transparent film, the grade offers a lower renewable-carbon deficit but also lower elongation, lower moisture barrier, and a higher seal initiation temperature. Compared with PBAT/PLA blends that may achieve compostability and higher renewable content, INZEA FH08 BC50 can provide higher clarity and better stiffness while remaining transparent, although compostability claims cannot be assumed because the carbon fraction alone is not a biodegradability certificate. The product is therefore positioned for converters that require a transparent, flexible PLA film with measurable renewable carbon content rather than a drop-in replacement for polyolefin sealant webs or a certified compostable film. Qualification should compare gauge variation, tear resistance, and seal strength on production equipment, and co-extrusion or adhesive lamination effects must be verified on the target converting line because published data for this specific configuration in multilayer structures is limited.
