| HS Code | 409539 |
| Polymer Base | Polylactic Acid (PLA) |
| Reinforcement | Short Glass Fiber |
| Glass Fiber Content | 15% |
| Uv Stabilization | Yes |
| Density | 1.36 g/cm³ |
| Tensile Modulus | 6000 MPa |
| Tensile Strength | 80 MPa |
| Elongation At Break | 2.0% |
| Flexural Modulus | 6000 MPa |
| Flexural Strength | 110 MPa |
| Charpy Notched Impact Strength | 5 kJ/m² |
| Charpy Unnotched Impact Strength | 20 kJ/m² |
| Heat Deflection Temperature At 1 8 Mpa | 140 °C |
| Vicat Softening Temperature | 150 °C |
| Melting Temperature | 170 °C |
| Melt Flow Rate | 10 g/10 min |
| Mold Shrinkage | 0.3% |
| Water Absorption | 0.5% |
As an accredited ArcBiox™ SGF15-f-A2 UV Stabilized Short Glass Fiber Polylactic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | ArcBiox™ SGF15-f-A2 UV Stabilized Short Glass Fiber Polylactic Acid is supplied in 25 kg moisture-barrier bags or 500 kg bulk sacks. |
| Container Loading (20′ FCL) | 20′ FCL: palletized 25 kg bags of ArcBiox™ SGF15-f-A2 UV Stabilized Short Glass Fiber Polylactic Acid, secured in dry container. |
| Shipping | ArcBiox™ SGF15-f-A2 is typically shipped as non-hazardous, UV-stabilized PLA compound pellets in moisture-barrier foil bags or fiber drums, palletized and stretch-wrapped. Transport in clean, dry, ventilated vehicles at ambient temperature, avoiding direct sunlight, heat, and moisture. Keep containers sealed until use. No special DOT/IMDG/IATA hazard classification required. |
| Storage | Store ArcBiox™ SGF15-f-A2 in a cool, dry, well-ventilated area, away from direct sunlight, heat, sparks, and open flames. Keep containers tightly closed to prevent moisture absorption and contamination. Protect from prolonged UV exposure. Do not store near oxidizers, acids, or bases. Maintain stable ambient temperature, use original packaging, avoid excessive stacking, and follow first-in, first-out rotation. |
| Shelf Life | Shelf life is typically 12 months when stored unopened, cool, dry, and protected from moisture and UV light. |
ArcBiox™ SGF15-f-A2 is supplied as a UV-stabilized 15 wt% short glass fiber reinforced polylactic acid compound. The grade is intended for injection molding, profile extrusion, and filament conversion routes where stiffness, dimensional stability, and surface retention after UV exposure are specified. Melt processing is preceded by drying at 80 °C for 4 h with a -30 °C dew point air source when ambient relative humidity exceeds 60%; target moisture content before the screw feed is below 250 ppm. The process boundaries below are starting values only; screw geometry, back pressure, residence time, and tooling configuration alter fiber length distribution and should be verified on the specific production line.
| Conversion route | Drying condition | Melt temperature range | Tooling / post-treatment temperature | Critical boundary |
|---|---|---|---|---|
| Injection molding | 80 °C for 4 h, dew point -30 °C | 185–210 °C | Mold 30–50 °C | Maximum melt residence time 8 min |
| Profile extrusion | 80 °C for 3–4 h | 170–195 °C | Calibrator 25–40 °C | Screen pack 100–150 µm |
| Filament conversion | 80 °C for 4 h | 170–190 °C | Water bath 40–60 °C | Melt filter 100–150 µm |
Within the constrained thermal environment of a passenger vehicle cabin, low-load trim components are specified against flammability, fogging, and recycled-content documentation rather than high-temperature structural load. ArcBiox™ SGF15-f-A2 is applicable to parts whose service surface temperature remains below 65 °C under solar load, because short glass PLA compounds do not provide the heat deflection margin of mineral-filled polypropylene or PC/ABS. The primary compliance basis for interior cabin components includes FMVSS 302 / ISO 3795 for horizontal burn rate, REACH Article 33 SVHC communication and Annex XVII restrictions, and Directive 2000/53/EC Annex II for cadmium, lead, mercury, and hexavalent chromium. Where German OEM specifications govern interior emissions, VDA 277 total VOC and VDA 278 FOG screening are used; printed or painted surfaces may require additional DIN 75201 fogging analysis. The formulation addition ratio for a first-generation injection molded trim part is 100 wt% SGF15-f-A2 compound, with clean sprues and runners regrind limited to 10 wt% of total shot weight. PLA-based color masterbatches are metered at 2–4 wt%; external mold release agents are omitted when downstream grain lamination or soft-touch coating adhesion must be preserved. Processing on a servo-hydraulic injection molding machine with a general-purpose screw of 20:1 to 25:1 L/D ratio, compression ratio 2.0:1 to 2.5:1, and reverse-taper nozzle provides sufficient plasticating without excessive fiber attrition. The melt temperature at the nozzle should be held at 190–210 °C, and tool steel temperature should be maintained at 30–50 °C; mold temperature uniformity within ±3 °C across the cavity is required for warp-sensitive door trim sections. Thin-wall sections of 1.2–2.5 mm are filled with medium-to-high injection velocity and holding pressure of 60–80 MPa hydraulic or equivalent. Weld lines are moved to low-stress areas by gate relocation because short glass fiber compounds develop flow-front orientation gradients that lower weld tensile strength relative to the bulk material. Terminal finished product types include door waist-rail covers, seat side shields, HVAC vent louver frames, instrument panel end caps, and map pocket trim substrates.
For consumer electronics enclosures and internal frames, electrical safety is verified at the system level under IEC 62368-1:2023. ArcBiox™ SGF15-f-A2 should not be specified for mains insulation or parts intended to provide fire containment unless a grade-specific UL 94 HB or higher classification has been obtained through third-party testing; published data for this specific formulation is limited, and short glass fiber content can alter ignition behavior. RoHS compliance is documented against 2011/65/EU Annex II restricted substances, including lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE, while REACH SVHC declarations are required for EU import. The formulation approach is neat resin feed at 100 wt% SGF15-f-A2; PLA-based color or antistatic masterbatch is added at 1–3 wt%. Unknown carrier impact modifiers are excluded above 5 wt% because incompatible elastomer domains can disrupt fiber-matrix load transfer and reduce modulus. Processing uses a hot-runner injection molding machine with valve gates, melt temperature 195–210 °C, mold temperature 40–60 °C, and mold temperature uniformity controlled to ±3 °C across the cavity. Warpage is managed through sequenced valve-gate opening rather than by raising mold temperature beyond the stated upper limit; short glass fiber compounds exhibit anisotropic shrinkage driven by fiber orientation in the frozen surface layer and random orientation in the core. Packing is set to 3–5 s final pack at 60–80 MPa hydraulic or equivalent, followed by post-mold fixturing when flatness tolerances below 0.3 mm over 150 mm are required. Terminal finished product types include monitor bezels, webcam housings, speaker cabinet baffles, laptop stand arms, and internal antenna frames that are not used as mains insulation.
Because filament conversion imposes a second heat history on the polymer matrix, short glass fiber retention in SGF15-f-A2 filament depends more on screw shear, melt filtration, and back pressure than on nozzle temperature alone. The compliance basis for industrial filament supplied to EU assembly operations includes REACH and RoHS 2011/65/EU Annex II declarations; printed coupon mechanical properties are evaluated according to ISO 527-2 for tensile response and ISO 178 for flexural performance, while accelerated weathering of UV-stabilized fixtures is screened under ISO 4892-2:2013 Method A. For filament extrusion, the formulation is 100 wt% compound dried at 80 °C for 4 h to a target moisture content below 250 ppm; open-air hopper feeding should not be used when ambient relative humidity exceeds 60%. If dilution is required to reduce nozzle clogging on smaller FDM systems, unfilled PLA may be blended at 10–15 wt%, yielding a nominal glass fiber content of 12.75–13.5 wt%; adding loose chopped fiber is not recommended because it creates die blockages and lowers mean fiber length. A single-screw extruder with 24:1 to 30:1 L/D, melt filter screen pack of 100–150 µm, and melt pump is used; the die diameter is set at 2.2–2.4 mm to draw down to 1.75±0.03 mm, with water bath temperature 40–60 °C and dual-axis laser micrometer feedback. In FDM processing, a hardened steel nozzle of 0.4–0.6 mm bore diameter is required because short glass fiber abrades brass within 2 h; extrusion temperature 200–230 °C, build plate 40–60 °C, print speed 30–60 mm/s, and cooling fan 50–80% after the first layer. Terminal finished product types include assembly jigs, robotic gripper fingers, inspection fixtures, drone landing skid plates, and temporary outdoor signage frames where moisture drainage is designed into the part.
Replacement of ABS or PC/ABS in non-live appliance enclosures forces a review of glow-wire performance, creep under warm air discharge, and UV surface stability. ArcBiox™ SGF15-f-A2 is suitable only for external non-electrical enclosures, air-outlet deflectors, and fan guards where the appliance safety standard IEC 60335-1:2020 clause 30.2 has been reviewed and the material is excluded from live-part separation and functional insulation. Because PLA compounds are not inherently flame retardant, any glow-wire requirement under IEC 60695-2-11 must be re-tested on the finished part; published data for this specific configuration is limited. RoHS and REACH declarations apply. The formulation should be 100 wt% virgin compound, with internal clean regrind restricted to 0–10 wt% to limit fiber length reduction and batch-to-batch warpage drift. If a flame retardant masterbatch is added, only a PLA-carrier grade with documented thermal stability up to 210 °C is permitted; adding sulfur-based FR packages may accelerate PLA hydrolysis and must be avoided unless specifically validated. Processing uses injection molding with melt temperature 185–205 °C, mold temperature 35–50 °C, and hardened tool steel at 52–54 HRC for glass fiber abrasion resistance. Air-moving components benefit from multiple pin gates rather than a single edge gate because weld line depth in rib intersections can be reduced by filling the part from three or four flow fronts. Terminal finished products include air purifier intake grilles, floor fan guards, dehumidifier side panels, robot vacuum top covers, and cable-managed appliance base frames.
Office furniture components must satisfy the mechanical safety tests in ANSI/BIFMA X5.5-2021 when installed in task seating, but SGF15-f-A2 is reserved for non-load-bearing brackets, edge rails, cable-management covers, and aesthetic back panels rather than seat shells or back frames. Load-bearing posture support is excluded because the long-cycle viscoelastic response of PLA compounds requires part-specific validation under EN 1728:2012 or equivalent seating durability protocols before approval. Emissions testing under EN 16516:2017+A1:2020 and smoldering cigarette ignition under EN 1021-1:2014 are relevant when the part is integrated into upholstered assemblies. The formulation addition ratio for injection molded furniture connectors is 85–100 wt% SGF15-f-A2 with 0–15 wt% clean in-house regrind; PLA-based color masterbatch is added at 1–3 wt%. Mineral fillers should not be introduced above 5 wt% if surface hardness and fiber-matrix adhesion are the design objectives. Injection molding uses melt temperature 185–210 °C, mold temperature 30–45 °C, and wall thickness 2.0–4.0 mm. For extruded edge profiles and cable-tray rails, a single-screw extruder with melt temperature 170–195 °C and vacuum calibration at 25–40 °C is typical. Annealing at 80 °C for 2 h is applied to thick-wall profiles before gluing or painting to relieve molded-in stress and reduce solvent-crazing under coating. Terminal finished products include height-adjustable desk cable trays, chair back cover shells, monitor shelf side brackets, table edge protectors, and partition foot covers.
Outdoor exposure combines UV radiation, rain cycling, and condensation on the same surface, so the UV stabilizer in SGF15-f-A2 addresses color shift and surface embrittlement but does not suppress PLA hydrolysis, microcracking, or biological attack in standing water. Temporary outdoor fixtures are screened under ISO 4892-2:2013 for accelerated UV, and surface appearance after weathering is assessed with ISO 7724-2 or ISO 11664-4. Structural fastening and bending response are verified according to ISO 527-2 and ISO 178 after 500 h to 1000 h of accelerated exposure. No food-contact claim is made under EU 10/2011 or FDA 21 CFR for this industrial grade. The formulation addition ratio for injection molded display components is 100 wt% compound; additional UV masterbatch is unnecessary because the grade is pre-stabilized, and any added colorant must be pre-dried and PLA-based. Clean regrind from sprues and runners is limited to 10 wt% to avoid the impact reduction associated with repeated fiber attrition. Injection molding uses melt temperature 190–210 °C, mold temperature 30–50 °C, and part design must include drain holes and open geometries that prevent water accumulation at metal inserts or under adhesive labels. Terminal finished products include temporary event sign frames, exhibition display arms, outdoor point-of-sale stands for short campaigns, and park information panels expected to be replaced within one or two seasons. Continuous water contact, buried soil, or high-humidity tropical exposure should not be specified without field validation; published data for this specific configuration is limited.
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ArcBiox™ SGF15-f-A2 is a UV-stabilized short glass fiber reinforced polylactic acid compound supplied in cylindrical pellet form for injection molding and profile extrusion. The designation SGF15 identifies a nominal short E-glass fiber content of 15 wt%; the f-modifier indicates a flow-optimized molecular weight distribution of the PLA carrier resin; the A2 suffix denotes the incorporated UV stabilization package. The grade is intended for semi-structural components that require higher modulus, lower mold shrinkage, and improved dimensional stability relative to unfilled PLA while retaining a partially biobased polymer matrix. Fiber dispersion is achieved by twin-screw melt compounding, typically with a length/diameter ratio of 40:1 to 44:1, atmospheric venting, and side-feeding of the glass fiber after the polymer melting zone. The resulting fiber length distribution is controlled to limit anisotropic shrinkage and reduce abrasion in downstream injection units. Melt volume-flow rate determined according to ISO 1133-1:2022 at 210 °C under 2.16 kg falls in the range of 8–15 cm³/10 min, depending on residual moisture and fiber length distribution. This flow range permits filling of ribs and bosses with wall thicknesses down to 1.2 mm when adequate venting is provided. The grade is not a direct drop-in replacement for neat PLA in all tooling because the glass fiber raises viscosity at low shear rates and increases gate wear.
Polylactic acid degrades under solar UV primarily through Norrish I and Norrish II cleavage pathways at ester carbonyl linkages, producing chain scission, surface microcracking, gloss loss, and reduction in tensile strength. The A2 package is melt-compounded into the PLA matrix rather than applied as a surface coating, which reduces stabilizer bloom and migration from the polymer-fiber interface. Published data for equivalent UV-stabilized PLA compounds containing 15 wt% short glass fiber indicate that accelerated xenon-arc exposure according to ISO 4892-2:2013 method A, cycle 1, at 0.51 W/(m²·nm) at 340 nm and black-standard temperature 65 °C can produce a color difference below ΔE 2.0 and tensile strength retention above 85% after 1000 h. For the specific A2 formulation, published multi-year outdoor weathering data is limited; validation on production parts is required before extended exterior service. The stabilizer does not eliminate hydrolytic degradation. Parts exposed to combined UV, rain, and sustained surface temperatures above 50 °C may still undergo molecular weight reduction and fiber bloom. Darker pigmentation typically masks early surface degradation more effectively than natural or light-colored compounds because surface resin erosion exposes glass fiber at the skin layer.
Drying is the first processing boundary for the grade. PLA ester linkages hydrolyze rapidly at melt temperatures when moisture exceeds 0.05 wt%. Desiccant drying at 80 °C for 4 h to a dew point of -40 °C reduces residual moisture below 250 ppm. Dried pellets should be conveyed to the machine throat with a hopper residence time not exceeding 30 min to avoid moisture regain. Melt temperature measured at the nozzle should be maintained between 195 °C and 210 °C. Sustained melt temperatures above 220 °C accelerate molecular weight loss, visible as reduced part impact strength and increased melt flow variation. Mold temperatures from 25 °C to 40 °C are suitable for rapid cycle times and largely amorphous parts. Mold temperatures from 80 °C to 110 °C can raise crystallinity and heat deflection temperature, but cycle time increases because PLA crystallization is slow relative to engineering polymers. Injection molding machines should use a general-purpose screw with L/D 20:1 to 24:1 and compression ratio 2:1 to 2.5:1. Back pressure should remain between 3 bar and 7 bar. Excessive shear from high injection velocities or undersized gates reduces fiber length and can create fiber-length gradients between skin and core. Gate diameters should be 60–80% of the nominal wall thickness. Total residence time in the barrel should not exceed 10 min. Purging should be performed with a low-melt-index polypropylene or high-density polyethylene; amine-containing purging compounds and lubricants should be avoided because amine species can catalyze ester cleavage in PLA at processing temperatures.
A direct comparison against unfilled PLA and an unstabilized 15% short glass fiber PLA is shown in Table 1. The values are representative ranges compiled from ISO test specimens conditioned at 23 °C and 50% RH for 48 h. Lot-specific values should be confirmed against the manufacturer’s certificate of analysis.
| Property | Test method | Unfilled PLA | Unstabilized 15% SGF PLA | ArcBiox SGF15-f-A2 |
|---|---|---|---|---|
| Tensile modulus, MPa | ISO 527-2:2012 | 3200–3600 | 4800–5500 | 5000–6000 |
| Tensile strength, MPa | ISO 527-2:2012 | 55–65 | 70–80 | 70–85 |
| Flexural modulus, MPa | ISO 178:2019 | 3000–3400 | 4500–5200 | 4700–5600 |
| Notched Izod impact, kJ/m² | ISO 180:2023 | 2.5–4 | 4–6 | 4–6 |
| Heat deflection temperature, 1.8 MPa, °C | ISO 75-2:2013 | 50–60 | 90–105 | 90–110 |
| Mold shrinkage, flow direction, % | ISO 294-4:2018 | 0.8–1.2 | 0.3–0.5 | 0.3–0.5 |
| CLTE, flow direction, 10⁻⁶/K | ISO 11359-2:2021 | 70–90 | 35–45 | 35–45 |
Material replacement is justified when the application requires stiffness, lower thermal expansion, and reduced warpage rather than high impact toughness. Unfilled PLA typically exhibits a heat deflection temperature below 60 °C at 1.8 MPa, which limits use in enclosures exposed to solar gain or hot internal components. The addition of 15 wt% short glass fiber raises the heat deflection temperature to approximately 90–110 °C and reduces mold shrinkage from roughly 0.8–1.2% to 0.3–0.5% in the flow direction. Compared with impact-modified PLA, the glass-filled grade provides higher tensile and flexural modulus but lower notched Izod impact strength, typically 4–6 kJ/m². It is therefore not applicable for snap-fit features experiencing high strain at low temperatures. The low CLTE of 35–45 × 10⁻⁶/K in the flow direction improves dimensional stability in assemblies containing metal inserts. However, fiber orientation creates anisotropic shrinkage; cross-flow shrinkage can be higher than flow-direction shrinkage by 0.1–0.3 percentage points. Mold filling simulations should use fiber orientation tensors and measured pvT data for the grade rather than neat PLA data. The compound is compatible with externally heated hot runner systems with flow-channel diameters of at least 2.5 mm; internally heated systems can create stagnation and local degradation. For a single-cavity tool producing a 60 g part with a projected area of approximately 120 cm², a clamp force of roughly 80 tonnes is typical at a packing pressure of 500 bar.
Regulatory documentation for ArcBiox SGF15-f-A2 should be verified against the supplier safety data sheet and certificate of analysis. Under REACH Regulation EC 1907/2006, no substance on the Candidate List is intentionally added above 0.1% w/w. The grade is designed to comply with RoHS Directive 2011/65/EU Annex II restrictions, with cadmium, lead, mercury, hexavalent chromium, and polybrominated biphenyl flame retardants below the stated maximum concentration values. The glass fiber component is inorganic and not biodegradable; therefore the compound is not suitable for industrial compostability certification under EN 13432 despite the PLA matrix. Direct food-contact use under FDA 21 CFR 177.1520 is not supported because glass fiber migration and surface abrasion may generate particulates. Mechanical recycling is technically possible, but repeated regrind passes reduce fiber length and notched impact strength. Published data for this specific configuration after multiple recycling loops is limited; single-loop regrind addition at 20% is a practical processing boundary in many production environments. End-of-life handling should follow local mechanical recycling or incineration with energy recovery routes.
