| HS Code | 624260 |
| Material | Nylon 12 (PA12) with 30% glass fiber |
| Glass Fiber Content | 30% |
| Density | 1.23 g/cm³ |
| Tensile Strength | 110 MPa |
| Flexural Modulus | 6000 MPa |
| Flexural Strength | 160 MPa |
| Elongation At Break | 3% |
| Charpy Impact Strength Notched | 7 kJ/m² |
| Melting Temperature | 178 °C |
| Heat Deflection Temperature 1 82 Mpa | 175 °C |
| Vicat Softening Temperature | 175 °C |
| Water Absorption 24h At 23 C | 0.3% |
| Mold Shrinkage | 0.2% |
As an accredited Polyram PlusTek PD300G6 Nylon 12, 30% Glass Fiber factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 25 kg sealed polyethylene-lined paper bags, ensuring dry, contamination-free nylon 12 glass fiber pellets for processing. |
| Container Loading (20′ FCL) | 20′ FCL loading of Polyram PlusTek PD300G6 Nylon 12, 30% Glass Fiber: packaged resin palletized, containerized for safe, efficient transport. |
| Shipping | Polyram PlusTek PD300G6 is shipped as sealed, moisture-resistant bags or drums on pallets to prevent contamination. Avoid open storage, direct sunlight, and temperatures above 25°C. Standard non-hazardous freight is suitable, with protection from moisture and mechanical damage. Keep dry and handle carefully during transport and unloading. |
| Storage | Store Polyram PlusTek PD300G6 Nylon 12, 30% Glass Fiber in its original, sealed container in a cool, dry, well-ventilated area. Protect from moisture, direct sunlight, and excessive heat. Keep away from ignition sources and incompatible chemicals. Avoid unnecessary handling to prevent contamination and physical damage. Proper storage preserves material properties and processing performance. |
| Shelf Life | Shelf life is typically two years from manufacture if stored sealed, dry, and away from direct UV light. |
Production data from fuel-system component molders processing Polyram PlusTek PD300G6, a 30 wt% glass-fiber-reinforced nylon 12 compound, indicate that the material is rarely selected for its dry as-molded tensile strength alone. The principal design driver in this segment is retention of clamping force and insertion force on quick-connect couplings after thermal cycling from −40 °C to 125 °C and after prolonged contact with oxygenated fuel blends. Components in this category are qualified against SAE J2044 for quick-connect coupling fitment and thermal cycling, while permeation-relevant parts are assessed under CARB LEV III evaporative emission limits where applicable; ISO 19096-1:2015 may be used for dimensional and pressure-resistance validation when the part is integrated into a non-metallic fuel-system assembly. Formulation addition in this application is constrained by low-temperature impact retention under ISO 179-1/1eA: a production floor limit of 20 wt% in-plant regrind is frequently applied, representing 6 wt% total glass from recycled material when the virgin compound carries 30 wt% glass fiber. Higher regrind fractions should not be considered unless the molder demonstrates that Charpy notched impact strength at −30 °C remains above 7 kJ/m² on final parts. Injection molding is performed on machines with screw L/D ratios between 20:1 and 25:1, shut-off nozzles, and desiccant drying to below <0.10 wt% residual moisture under ISO 15512:2019 Method B; melt-temperature setpoints commonly fall between 240 °C and 270 °C, with mold temperatures held between 70 °C and 90 °C to balance crystallinity against sink-mark control. Because glass fiber orients perpendicular to the melt flow front at knit lines, the tensile strength at a knit line can be 30–50% lower than the straight-run value measured under ISO 527-1/2; sequential valve gating is therefore used to move knit lines into non-load-bearing flange regions. Typical finished components include SAE J2044 fuel-line quick connectors, evaporative canister valve housings, fuel filler neck brackets, vapor recovery fittings, and fuel pump module retainers.
| Test category | Standard / method | Typical production control range |
|---|---|---|
| Residual moisture before molding | ISO 15512:2019 Method B | <0.10 wt% |
| Tensile modulus of dry as molded compound | ISO 527-1/2 | 4,500 MPa to 6,500 MPa |
| Charpy notched impact at −30 °C | ISO 179-1/1eA | ≥7 kJ/m² for regrind approval |
| Quick-connect fitment and thermal cycling | SAE J2044 | −40 °C to 125 °C |
In multi-port pneumatic manifolds molded from Polyram PlusTek PD300G6, the failure mode observed on production-scale equipment is not burst failure of the manifold body but micro-leakage at knit lines created downstream of multi-pin gates. The relevant system standard is ISO 4414:2010 for pneumatic fluid power, with compressed air quality managed under ISO 8573-1:2010; for manifolds used in potentially explosive atmospheres, a final assembly assessment under IEC 60079-0:2017 may be triggered, even though the polymer component itself is not an ignition source. Because glass-fiber-reinforced PA12 displays a tensile-modulus range of 4,500 MPa to 6,500 MPa under ISO 527-1/2 dry as molded, orifice deformation under continuous operating pressure is typically less than 0.3% at 10 bar and 60 °C, but this value must be revalidated after 48 h water immersion per ISO 62:2008. Formulation adjustment in this sector is limited to gravimetric dosing of 15 wt% to 20 wt% in-plant regrind; the addition of color masterbatch should not exceed 2 wt% because higher masterbatch content introduces a bulk flow front that disrupts glass-fiber orientation and lowers weld-line burst strength. Tooling is usually produced with 0.8 µm Ra polished core pins and tunnel gates; injection pressures between 900 bar and 1,300 bar are used on 120 t to 180 t machines, and the shuttle table or rotary platen configuration permits parallel cooling times of 35 s to 60 s for sections up to 8 mm. Melt residence time is held below 8 min to limit fiber attrition and gas entrapment in the melt pool. Terminal products include pneumatic distribution manifolds, solenoid valve bodies, air preparation units, and compressed air quick-release couplings.
When high-density connector housings for outdoor telematics units are required to maintain terminal pitch after 1,000 h of 85 °C/85% RH exposure under IEC 60068-2-78, the lower water uptake of glass-filled PA12 becomes the primary dimensional-stability variable. The material is not used as a diluting let-down in this sector because masterbatch carrier resins alter the comparative tracking index measured under IEC 60112; therefore, Polyram PlusTek PD300G6 is metered at 100 wt% with no regrind unless the molder has completed CTI testing on each color lot. Electrical insulation coordination follows IEC 60664-1:2020, and enclosure ingress protection is evaluated under IEC 60529; where public safety listings are mandatory, UL 746B long-term property retention and UL 94 HB flame-class documentation are requested from the compound supplier. Processing includes desiccant drying to less than <0.10 wt% residual moisture, followed by injection at melt temperatures of 250 °C to 265 °C and mold temperatures of 80 °C to 100 °C to reduce glass-fiber read-through on cosmetic surfaces; low-compression screws with back-pressure settings of 20 bar to 40 bar are used to avoid excessive fiber breakage during plastication. Cavity pressure transducers are specified in the tool because the relatively low melt viscosity of PA12 can produce flash at parting lines above 1,000 bar. Finished devices in this segment include circular industrial connector shells, M12 and M8 connector bodies, sensor housings, cable glands, and outdoor terminal block frames.
Sanitary flow components such as pump volutes and valve bodies are increasingly injection molded from Polyram PlusTek PD300G6 where chemical resistance to clean-in-place agents and weight reduction relative to cast aluminum are both required. The material must be evaluated under FDA 21 CFR 177.1500 for nylon 12 if the finished part contacts food, and under EU Regulation 10/2011 with appropriate food simulant selection when sold into European food-processing equipment; where 3-A Sanitary Standards apply, the polymer part should achieve a surface finish of 0.8 µm Ra or finer to limit microbial harborage. Formulation restrictions in this sector prohibit unapproved external mold releases and require that any added color masterbatch or processing aid be listed under the relevant food-contact regulation; the conservative production approach is to run PD300G6 at 100 wt% and to use only food-grade silicone external lubricant at the tool surface. Injection molding is carried out on machines with 150 t to 250 t clamp force depending on projected area, using heated sprue bushings and valve-gated hot runners to eliminate vestige that can create microbial retention; melt temperature is kept at 245 °C to 260 °C, and mold temperature at 70 °C to 85 °C, with pack pressure held for a duration sufficient to eliminate core voids in thick sections. Strong caustic clean-in-place solutions at elevated temperature may attack the glass-fiber interface over extended cycles; therefore, continuous immersion service above 80 °C with cleaning agents containing free chlorine or sodium hydroxide above 2 wt% should be qualified by spool-piece immersion testing under ISO 175:2010 before tool release. Terminal products include beverage dispenser valve housings, pump volutes, filter heads, and CIP spray-nozzle adapter rings.
Polyram PlusTek PD300G6 is used for chemical metering pump housings and filter heads exposed to aliphatic hydrocarbons, lubricating oils, and diluted neutral salt solutions, but the design must account for the tendency of aggressive media to migrate along the glass-fiber–matrix interface. The material is specified against the pump manufacturer's dimensional stability requirements in ISO 5199, and chemical compatibility is evaluated by immersion testing under ISO 175:2010 for a minimum of 7 days at the upper operating temperature; change in tensile strength after immersion should be compared with dry values from ISO 527-1/2, and a retained tensile strength below 85% of the dry as-molded value is commonly treated as an internal disqualification criterion for continuous immersion service. Regrind use in this sector is generally not recommended for wetted sections because every reprocessing heat history shortens glass-fiber length and increases the number of exposed fiber ends available for wicking; when used in non-wetted structural components, 20 wt% regrind may be incorporated under the condition that ISO 8256 Type 1 tensile-impact strength remains within 85% of virgin lot values. Production on injection molding machines with 80 t to 150 t clamp force uses melt temperatures of 235 °C to 255 °C, mold temperatures of 60 °C to 80 °C, and injection speeds below 80 mm/s to minimize turbulent fiber orientation in thick flanges; after molding, parts are often annealed at 110 °C for 2 h in nitrogen to reduce residual stress before chemical immersion service. Concentrated strong acids such as hydrochloric acid above 10 wt% are not recommended for continuous contact with this material. Finished components include diaphragm pump housings, chemical filter heads, metering pump volutes, and flow meter enclosures for non-potable chemical dosing.
Laboratory analyzer housings and fluidic manifold blocks are a downstream segment where low water uptake and controlled dimensional change of PA12 compounds are favored over lower-cost PA66 alternatives. For electrical safety of built-in components, the final equipment is evaluated under IEC 61010-1:2010/AMD1:2016, while the plastic enclosure's flammability is assessed under UL 94 HB or better as specified by the equipment standard; electromagnetic compatibility is a system-level requirement under EN 61326-1:2021 rather than a compound property. Because dimensional change in air-conditioned laboratories is dominated by moisture expansion, the compound is processed with 100 wt% Polyram PlusTek PD300G6 without hygroscopic reprocessed material, and if a custom color is required, the masterbatch loading is limited to 1 wt% with prior CTI verification under IEC 60112. Injection molding uses desiccant drying at 80 °C for 4 h to 6 h to below <0.10 wt% moisture, melt temperatures between 235 °C and 250 °C, and mold temperatures between 60 °C and 80 °C; clamp forces are typically in the 80 t to 120 t range for analzyer consoles, while structural deck frames may require up to 200 t depending on projected area. Finished product types include laboratory analyzer cabinets, flow cytometer chassis parts, automated liquid-handler deck frames, and laboratory robot arm joints.
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Polyram PlusTek PD300G6 is a 30% glass-fibre-reinforced polyamide 12 injection-moulding compound. Under ISO 1043-1 and ISO 11469, the generic marking code is PA12-GF30; the fibre mass fraction is 30%, corresponding to a calculated fibre volume fraction of approximately 15% using an E-glass density of 2.54 g/cm³ and a PA12 matrix density of 1.01 g/cm³. The product class uses a semicrystalline aliphatic polyamide 12 backbone, which has a lower amide-group concentration than PA6 or PA66. That structural difference is the primary reason for lower equilibrium moisture uptake: at 23°C and 50% RH, water absorption measured to ISO 62 is commonly reported as 0.5–0.7%, whereas PA66-GF30 typically absorbs 1.5–2.5% under the same conditioning. In the dry-as-moulded state, tensile modulus of PA12-GF30 is generally 5,500–6,500 MPa when tested to ISO 527-1/-2 at 23°C; unfilled PA12 is typically below 1,500 MPa, so the glass fibre produces roughly a 4× stiffness increase.
The grade is supplied as free-flowing pellets with a bulk density of approximately 0.70–0.85 g/cm³. Glass-fibre content is verified by thermogravimetric residue or by glass-fibre content measured to ISO 1172. Because the 30% glass loading is abrasive, screw and barrel wear on high-throughput injection units is a known field failure mode. Maintenance records for glass-filled polyamide production indicate that nitrided screws require inspection at 2,000–4,000 h intervals when running 30% glass compounds; bimetallic screw and barrel combinations are preferred for extended campaigns.
Addition of 30% glass fibre changes both stiffness and failure mode. Under ISO 527-1/-2, dry tensile strength is typically 105–125 MPa; elongation at break is reduced to 3.0–5.0%, whereas unfilled PA12 commonly exceeds 100%. Flexural modulus measured to ISO 178 is usually 4,800–5,800 MPa, and notched Charpy impact strength measured to ISO 179-1/1eA at 23°C is 10–15 kJ/m². At −30°C, notched Charpy impact strength drops to 6–9 kJ/m²; designers should not extrapolate room-temperature toughness to sub-zero snap-fit assembly without low-temperature testing.
Thermal performance also shifts. The heat deflection temperature under 1.8 MPa load, tested to ISO 75-1/-2, is typically 165–175°C; the 0.45 MPa value is 175–185°C. Vicat softening temperature measured to ISO 306, method B50, is commonly 165–175°C. These values place the compound above unfilled PA12, which generally exhibits HDT/A values near 50–60°C, but below high-temperature polyamides such as PPA-GF30. The crystallization behaviour also shifts: unfilled PA12 typically crystallizes at 145–155°C, and glass fibres act as nucleating surfaces that may raise peak crystallization temperature by 5–10°C. This can reduce mould cooling time slightly, but it can also increase frozen-in orientation if mould temperatures are below 60°C. Melt volume-flow rate measured at 275°C under a 5 kg load to ISO 1133-1 is typically 5–15 cm³/10 min for PA12-GF30. Shear viscosity at 1,000 s⁻¹ is in the range 150–300 Pa·s, which allows filling of wall sections down to 0.8 mm with adequate gate dimensions.
| Property | Standard | Typical range |
|---|---|---|
| Density | ISO 1183-1 | 1.22–1.26 g/cm³ |
| Water absorption, 23°C/50% RH | ISO 62 | 0.5–0.7% |
| Tensile strength | ISO 527-1/-2 | 105–125 MPa |
| Tensile modulus | ISO 527-1/-2 | 5,500–6,500 MPa |
| Elongation at break | ISO 527-1/-2 | 3.0–5.0% |
| Flexural strength | ISO 178 | 150–180 MPa |
| Flexural modulus | ISO 178 | 4,800–5,800 MPa |
| Charpy notched, 23°C | ISO 179-1/1eA | 10–15 kJ/m² |
| Charpy notched, −30°C | ISO 179-1/1eA | 6–9 kJ/m² |
| HDT, 1.8 MPa | ISO 75-1/-2 | 165–175°C |
| HDT, 0.45 MPa | ISO 75-1/-2 | 175–185°C |
| Vicat B50 | ISO 306 | 165–175°C |
Pre-drying of Polyram PlusTek PD300G6 before injection moulding is specified when the moisture content exceeds 0.10% by mass. Desiccant drying at 80°C for 4–8 h with a dew point below −20°C and airflow of at least 3.7 m³/h per kg/h of polymer throughput is standard practice for glass-reinforced PA12. If ambient relative humidity is above 60%, open storage time should not exceed 30 min; condensation on cool pellet surfaces can introduce enough moisture to create gas splay. Residual moisture above 0.15% at the screw reduces melt viscosity through hydrolysis and lowers tensile strength by 5–15% because the matrix-fibre interphase is attacked. Regrind may be used up to 30% by mass if it is dry and free of dust; higher regrind fractions increase fibre-length reduction and melt-pressure variability in open-nozzle machines.
On 80–120 t hydraulic injection moulding machines with 30 mm diameter three-zone screws of L/D 20:1, suitable barrel settings are 235°C at feed, 255°C in the compression zone, and 270°C at the nozzle; melt temperature should be maintained between 250°C and 280°C. Mould temperatures of 60–90°C are adequate for general parts, but thin-wall sections below 1.0 mm can require 100–120°C to prevent premature freeze-off and exposed glass at the surface. Injection velocity should be controlled to maintain a consistent flow-front speed of 100–300 mm/s in the cavity; switching to hold pressure at 95–98% fill reduces overpacking at the gate. Holding pressure is typically 50–70 MPa, and screw back pressure is limited to 2–5 bar because higher back pressure increases fibre breakage. A shut-off nozzle is required to avoid drool and to retain a clean sprue break.
Tooling details differ from unfilled PA12. Gates should be round or trapezoidal with a minimum diameter or thickness of 1.0 mm; pinpoint gates smaller than 1.0 mm can plug with glass bundles. Runners should be full round with a minimum diameter of 6 mm for multi-cavity tools. Vent depth should be 0.02–0.03 mm; deeper vents encourage flash because the glass-reinforced melt has higher viscosity at low shear rates but can still flash under high injection pressure. Mould surfaces should be hardened to HRC 50–54 or use hardened inserts in high-wear areas such as gate inserts and shut-off faces.
Weld-line strength retention in 30% glass-fibre-reinforced polyamides is primarily controlled by fibre orientation. In single-gate tensile plaques moulded from PA12-GF30 to ISO 527-1/-2 geometry, a butt weld line commonly retains 50–65% of the parent tensile strength at 23°C. When two opposing gates create a central knit line, retention can fall to 40–55%, because glass fibres align parallel to the weld plane and act as stress concentrations. Unfilled PA12 typically retains 80–90% under the same condition, so the weld-line penalty must be included in structural bracket and pressure-housing design. For components requiring high knit-line integrity, valve-gated hot runners, sequential valve opening, or relocation of gate positions is specified; these measures do not eliminate the anisotropy, but they move the weakened zone out of tensile stress areas.
Compounding on a 40 mm co-rotating twin-screw extruder with L/D 40:1 and downstream glass feeding at 30% by mass typically yields number-average fibre lengths of 200–350 µm in pellets. After injection moulding, the number-average fibre length is usually below 200 µm because of screw shear, hot-runner shear, and gate shear. This reduction is normal but should be monitored; tensile strength falls and surface roughness increases when the number-average length drops below 120 µm. Flow-simulation results should not assume isotropic properties: the in-flow tensile modulus can be 1.5–2.0× the cross-flow modulus in edge-gated plaques. This anisotropy also appears in mould shrinkage and coefficient of linear thermal expansion.
Chemical-resistance screening of PA12-GF30 should use ASTM D543-20 or ISO 175 immersion protocols. In aliphatic hydrocarbon media such as diesel, motor oil, and aromatic-free fuels, PA12-GF30 typically retains at least 80% of tensile strength after immersion at 60°C for 1,000 h; mass increase is usually below 1.5%. The same exposure in strong acids, phenols, or concentrated formic acid leads to attack at the amide linkage, surface etching, and eventual stress cracking. Aqueous zinc chloride solutions above 50°C are a known stress-cracking medium for PA12; components exposed to road salts or zinc chloride should limit design strain in tensile zones to below 1.0% and use stress-relieved mouldings.
Moisture absorption also influences mechanical properties. After equilibrium at 23°C and 50% RH, tensile modulus can be 20–30% lower than dry-as-moulded values; tensile strength can fall by 10–20%, while elongation at break may increase. PA66-GF30 experiences larger modulus losses at the same relative humidity because it absorbs more water. At temperatures above 120°C in air, oxidation of the PA12 matrix becomes significant; long-term thermal-oxidative stability of this specific formulation should be confirmed to ISO 2578 if the application exceeds 120°C continuously. Published data for this specific configuration is limited above 150°C; short excursions to 180°C for less than 1 h may be acceptable for assembly but should not be used as a continuous-use rating.
Compared with PA66-GF30, the PA12 matrix in PD300G6 absorbs less moisture. A 100 mm bar conditioned to equilibrium at 23°C and 50% RH can grow 0.2–0.4%, whereas PA66-GF30 may grow 0.6–1.0%. The coefficient of linear thermal expansion measured by ISO 11359-2 is anisotropic: in-flow CTE is typically 2.5–4.5 × 10−5 K−1, and cross-flow CTE can be 5–8 × 10−5 K−1. Mould shrinkage to ISO 294-4 is normally 0.2–0.5% in-flow and 0.5–0.9% cross-flow; both depend on gating, wall thickness, hold pressure, and fibre orientation. Ribs and bosses should be designed with thinner cross-sections to reduce sink and differential shrinkage.
| Property | Standard | PA12-GF30 | PA66-GF30 | PPA-GF30 |
|---|---|---|---|---|
| Density | ISO 1183-1 | 1.22–1.26 g/cm³ | 1.35–1.40 g/cm³ | 1.44–1.50 g/cm³ |
| Water absorption, 23°C/50% RH | ISO 62 | 0.5–0.7% | 1.5–2.5% | 0.3–0.6% |
| Tensile strength | ISO 527-1/-2 | 105–125 MPa | 170–190 MPa | 200–230 MPa |
| Tensile modulus | ISO 527-1/-2 | 5,500–6,500 MPa | 9,000–11,000 MPa | 12,000–15,000 MPa |
| HDT, 1.8 MPa | ISO 75-1/-2 | 165–175°C | 235–250°C | 250–280°C |
| Charpy notched, 23°C | ISO 179-1/1eA | 10–15 kJ/m² | 10–12 kJ/m² | 8–12 kJ/m² |
The data in Table 2 are not direct drop-in equivalence: the lower flexural modulus of PA12-GF30 means that a part designed for PA66-GF30 may require thicker ribs or a larger section modulus to meet the same structural deflection limit. Conversely, replacing a metal bracket with PA12-GF30 may require additional glass-fibre orientation analysis because cross-flow modulus can be less than half the in-flow value. In fluid-handling and exterior components, PA12-GF30 is selected where lower moisture uptake and chemical resistance reduce performance drift; PPA-GF30 is selected where dry-temperature resistance and stiffness are dominant.
Production data from moulders switching from PA66-GF30 to PA12-GF30 indicate that shot weight drops by 8–12% for the same cavity volume because density is approximately 1.24 g/cm³ versus 1.35–1.40 g/cm³. However, the same cavity will produce a smaller as-moulded size because PA12-GF30 shrinkage differs; tooling corrections are therefore required unless the drawing tolerance is wider than 0.3 mm. Snap-fit retention force is also affected by lower flexural modulus; beams may need to be thickened or lengthened by 10–20% to achieve equivalent engagement force. Published data for this specific formulation is limited for fatigue crack growth at −40°C and for long-term creep above 80°C; qualification programmes should include ISO 527-1/-2 tensile, ISO 179-1/1eA notched Charpy, and ISO 2578 thermal endurance testing.
