| HS Code | 998226 |
| Density | 1.02 g/cm³ |
| Tensile Strength | 47 MPa |
| Flexural Modulus | 1400 MPa |
| Elongation At Break | 200 % |
| Notched Izod Impact Strength | 10 kJ/m² |
| Melting Point | 178 °C |
| Heat Deflection Temperature 1 8 Mpa | 55 °C |
| Vicat Softening Temperature | 160 °C |
| Water Absorption 24 H | 0.25 % |
| Hardness Shore D | 70 |
| Volume Resistivity | 1.0e+14 ohm·cm |
As an accredited Avient Edgetek NJ-000/000 Nylon 12 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Avient Edgetek NJ-000/000 Nylon 12 supplied in 25 kg sealed polyethylene-lined paper bags, palletized and wrapped for protection. |
| Container Loading (20′ FCL) | 20′ FCL container loading: palletized bags or drums of Avient Edgetek NJ-000/000 Nylon 12, secured for safe transport, maximizing weight capacity. |
| Shipping | Avient Edgetek NJ-000/000 Nylon 12 ships as a dry, free-flowing pellet in sealed moisture-barrier bags or drums. Store in a cool, dry area away from direct sunlight and heat sources. Avoid excessive humidity to prevent moisture pickup; handle with standard industrial hygiene practices. |
| Storage | Store Avient Edgetek NJ-000/000 Nylon 12 in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and moisture. Keep containers tightly sealed to prevent contamination and humidity absorption. Avoid dust accumulation and static discharge; use grounding where appropriate. Maintain moderate temperatures and protect from physical damage. Follow manufacturer’s guidelines for shelf life. |
| Shelf Life | Shelf life is typically 2 years from shipment if stored unopened, dry, and cool. |
Coextrusion of gasoline vapour return lines using Avient Edgetek NJ-000/000 Nylon 12 exposes the inner layer to oxygenated fuel blends, methanol pickup, and the mechanical stress of quick-connector retention. The inner PA12 layer is typically run at 0.20 mm to 0.60 mm wall inside a total wall of 1.0 mm to 1.5 mm, while outer layers carry barrier and burst-strength functions. Drying before extrusion uses a desiccant dryer at 80 °C for 4 h to 6 h until residual moisture is below 0.10% as measured by ISO 15512. A single-screw extruder with 24:1 to 30:1 L/D and a polyamide-type barrier screw is set to a compression ratio of 2.5:1 to 3.0:1. Barrel zones are profiled from 220 °C to 245 °C, and melt temperature is checked between 230 °C and 250 °C at the die. If melt temperature exceeds 280 °C for more than 15 min, thermal oxidation raises gel density and reduces pressure-burst consistency. Vacuum sizing is maintained at 0.3 bar to 0.7 bar below atmospheric pressure with cooling water inlet at 20 °C to 40 °C. The air gap between die face and sizing sleeve is held below 50 mm to prevent sag-induced ovalization. Finished assemblies are validated under SAE J2260, with permeation measured according to SAE J1737 and quick-connector retention according to SAE J2044. Regrind addition is not assumed neutral; unfilled PA12 retains melt viscosity well, but impact resistance must be re-checked for each lot using ISO 179-1/1eA before regrind exceeds 20% in the inner layer.
For 6.35 mm and 9.53 mm outside diameter nylon air brake tubing, the limiting factor is not melt pumping but vacuum sizing water temperature and the resulting through-wall crystallinity gradient. A single-screw extruder of 25:1 to 30:1 L/D with a compression ratio of 3.0:1 is run with melt temperature from 225 °C to 245 °C, and die lands are sized to a draw-down ratio of 1.1:1 to 1.4:1. The air gap is kept to 35 mm or less because the lower melt strength of unfilled PA12 permits gravity-driven ovalization above 0.05 mm when the gap exceeds 70 mm. Cooling water is held between 20 °C and 45 °C. When the first tank falls below 15 °C, the outer surface quenches into a fine spherulitic skin while the core continues to crystallize slowly, creating residual hoop stress that can reduce -40 °C impact performance in the SAE J844 cold impact test. Vacuum is set at 0.3 bar to 0.6 bar below atmospheric and adjusted to maintain outside diameter tolerance of ±0.05 mm over a 1000 m run. Pressure fluctuations greater than 0.1 bar at the sizing sleeve produce visible outside diameter chatter. Dimensional gate after thermal conditioning at 100 °C for 24 h is ±0.05 mm, and wider drift indicates insufficient relief of molecular orientation or a cooling water profile outside the set band. Burst pressure and low-temperature impact acceptance are fixed by SAE J844 for each tube size, so no universal limit can be quoted. Lot-specific crystallinity measured by ISO 11357-3 is used to set the cooling water profile before a production run begins.
Automotive single-core cable jacketing with an unfilled PA12 sheath of 0.20 mm to 0.35 mm wall is extrusion-coated over a copper conductor using semi-tubing tooling and a draw-down ratio of 1.2:1 to 1.6:1. Drying and melt temperature follow the same envelope as fuel tubing: 80 °C for 4 h to 6 h and 230 °C to 250 °C at the die. The acceptance framework is ISO 6722, where cold winding at -40 °C and scrape abrasion are cable-size dependent; a jacket cannot be certified without the conductor build. Published data for unfilled PA12 under ISO 62 show conditioned moisture uptake at 23 °C and 50% RH below 0.8%, which stabilizes dielectric and dimensional behaviour of sheathed bundles in wet compartments. The same melt is not suitable for high-speed fibre-optic loose tube buffering because unfilled PA12 at thin wall below 0.15 mm may exhibit melt fracture at line speeds above 300 m/min; such applications require a different viscosity grade or a fluoropolymer additive system.
| Process | Drying | Melt temperature | Key control | Reference standard |
| Coextruded fuel vapour line inner layer | 80 °C for 4 h to 6 h to <0.10% moisture | 230 °C to 250 °C | Vacuum sizing 0.3 bar to 0.7 bar; air gap <50 mm | SAE J2260, SAE J1737, ISO 15512 |
| Air brake tube extrusion | 80 °C for 4 h to 6 h | 225 °C to 245 °C | Cooling water 20 °C to 45 °C; outside diameter ±0.05 mm | SAE J844, ISO 11357-3 |
| Cable sheathing | 80 °C for 4 h to 6 h | 230 °C to 250 °C | Draw-down ratio 1.2:1 to 1.6:1; wall 0.20 mm to 0.35 mm | ISO 6722, ISO 62 |
| Catheter shaft extrusion | 80 °C for 4 h to 6 h | 225 °C to 245 °C | Laser gauge outside diameter ±0.025 mm; draw-down ratio ≤2.0:1 | ISO 10993-5, ISO 10993-10 |
When thin-wall catheter shaft tubing is run on a 20:1 to 25:1 L/D extruder with a melt pump, melt temperature is held at 225 °C to 245 °C and a dual-axis laser gauge maintains outside diameter to ±0.025 mm at line speeds from 50 m/min to 150 m/min. Wall thickness for catheter sub-lumens is typically 0.15 mm to 0.30 mm, so the draw-down ratio is limited to 2.0:1 or below to prevent frozen-in orientation that raises hoop stress and kink radius. The base polymer does not confer biocompatibility; final device validation must include ISO 10993-5 cytotoxicity and ISO 10993-10 skin sensitization on sterilized, finished assemblies because residual monomer, processing aids, or colourants can alter biological response. Sterilization modality is a process variable, not a property constant: ethylene oxide leaves residuals that require ISO 10993-7 verification, while gamma irradiation above 25 kGy can shift elongation at break and yellowness index enough to change catheter shaft flexibility. Dimensional checks after 37 °C ageing in humidified air for 48 h separate immediate sizing errors from slow moisture re-equilibration; because PA12 moisture uptake reaches equilibrium over days, final outside diameter should be measured after conditioning, not immediately off-line.
Under-hood quick connectors and thermal-management fittings in electric vehicle cooling loops expose unfilled PA12 to 50:50 water-to-ethylene glycol at operating temperatures from 90 °C to 110 °C and occasional external road de-icing brines. The material is selected over PA6 or PA66 for lower equilibrium water uptake and resistance to chloride-induced stress cracking. Hydrolysis resistance is not absolute; property retention after 1000 h immersion in coolant at 90 °C must be measured by ISO 1817, and published data for this specific unfilled grade in long-life coolant mixtures is limited, so each coolant package carries its own approval. Injection moulding of connectors runs at melt temperatures of 230 °C to 260 °C, with mould temperature held at 40 °C to 80 °C to balance crystallization and sealed-surface flatness. A low mould temperature below 30 °C increases post-mould shrinkage enough to break O-ring groove flatness. Zinc chloride stress cracking is screened not by a universal ISO method but by OEM-specific immersion in 30% to 50% ZnCl₂ solution at 50 °C for 200 h with 0.5% outer fibre strain; unfilled PA12 typically shows no visible cracking in these tests, but the absence of a common standard means converter-specific data must be built into each drawing.
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Avient Edgetek NJ-000/000 Nylon 12 is supplied as an unfilled, unmodified polyamide 12 grade within the Edgetek NJ product line. The trailing code 000/000 indicates a non-reinforced, non-impact-modified, natural formulation in the manufacturer’s coding practice; the certificate of analysis for the specific production lot remains the authoritative source for lot-level values. Test specimens for specification comparison are prepared according to ISO 294-1 and conditioned at 23 °C and 50% relative humidity under ISO 291. Representative published data for unmodified PA12 place density between 1.01 g/cm³ and 1.02 g/cm³ under ISO 1183-1, dry-as-molded tensile modulus between 1100 MPa and 1600 MPa under ISO 527-1/-2, and notched Charpy impact at 23 °C between 5 kJ/m² and 12 kJ/m² under ISO 179-1/1eA. Linear mould shrinkage is commonly reported at 0.8% to 1.5% under ISO 294-4. Published product-specific data for this exact Avient configuration are limited in the public domain, so these figures are material-class benchmarks rather than certified lot data.
The practical processing window is controlled by moisture content, melt temperature, and screw residence time. Before processing, pellets should be dried in a desiccant dryer at 80 °C for 4 h to 8 h when moisture exceeds 0.1% by mass; the dryer dew point should be held at or below –30 °C. Residual moisture above 0.1% promotes hydrolytic chain scission in the melt, yielding surface splay, brittle gates, and reduced impact resistance. On a reciprocating-screw injection moulding machine with a three-zone screw of 18:1 to 22:1 L/D and a compression ratio of 2.0:1 to 2.5:1, the melt temperature is maintained between 230 °C and 260 °C. Tool temperature is kept between 50 °C and 90 °C because lower tool temperatures shorten cycle time but freeze in residual orientation and increase warpage in thin-wall sections. Back pressure is set from 0.5 MPa to 1.5 MPa, screw peripheral speed is limited to 0.1 m/s to 0.3 m/s, and hold pressure is typically 50% to 70% of injection pressure until gate freeze. Required clamp force is normally 3 kN to 6 kN per cm² of projected area. At melt temperatures above 280 °C or residence times beyond 10 minutes, thermal yellowing and molecular-weight loss are observed. At warehouse relative humidity above 60%, pellet moisture can rise from 0.1% to 0.25% by mass within 6 h; sealed hoppers and short feed lines are required. On co-rotating twin-screw extruders with L/D 36:1 used for concentrate dilution or reprocessing, barrel temperatures of 200 °C to 240 °C with medium-shear screw elements are specified; high-shear kneading blocks raise melt temperature and accelerate thermal degradation. Processors should verify the melt volume-flow rate under ISO 1133-1:2022 using the temperature and load stated on the Avient datasheet, because moisture variation changes the apparent flow curve.
For parts with 2.0 mm nominal wall thickness at a tool temperature of 80 °C, production-scale cavity-pressure recordings typically show gate freeze between 2 s and 6 s, with cooling time between 15 s and 25 s. Pack time should extend beyond gate freeze by 0.5 s to 1.0 s to prevent sink and backflow. Weld-line impact strength is a limiting feature; the notched Charpy value under ISO 179-1/1eA at a knit line can be more than 40% lower than the bulk value. Mould-filling simulation should locate weld lines away from snap arms and seal faces.
When conditioned at 23 °C and 50% relative humidity, unfilled PA12 retains more of its dry tensile modulus than PA6 or PA66 because the lower amide concentration reduces plasticisation by absorbed water. The comparative ranges below are representative published values for unfilled polyamides, not Edgetek NJ-000/000 lot-certified values.
| Property | Test method | Unfilled PA12 | Unfilled PA6 | Unfilled PA66 |
|---|---|---|---|---|
| Density | ISO 1183-1 | 1.01–1.02 g/cm³ | 1.12–1.14 g/cm³ | 1.13–1.15 g/cm³ |
| Tensile modulus, dry as molded | ISO 527-1/-2 | 1100–1600 MPa | 2600–3400 MPa | 2700–3300 MPa |
| Notched Charpy, 23 °C | ISO 179-1/1eA | 5–12 kJ/m² | 4–7 kJ/m² | 4–6 kJ/m² |
| Water saturation, 23 °C | ISO 62 | 1.4–2.0 % | 8.0–10.0 % | 7.0–9.0 % |
| Heat deflection temperature, 1.8 MPa | ISO 75-2 | 45–55 °C | 65–80 °C | 70–85 °C |
The lower density and water uptake of PA12 explain its use in lightweight fluid-handling components, while the lower dry tensile modulus relative to PA6 and PA66 is an inherent trade-off. If higher stiffness is required, a glass-reinforced Edgetek grade should be specified instead of increasing wall thickness, because thicker walls raise cooling time and sink-mark risk under injection moulding.
Under ISO 62, an unfilled PA12 part at equilibrium in 23 °C water typically absorbs 1.4% to 2.0% by mass, whereas unfilled PA6 absorbs 8.0% to 10.0% and unfilled PA66 absorbs 7.0% to 9.0%. At 50% relative humidity, PA12 reaches approximately 0.5% to 0.8% water by mass; the associated tensile modulus decline is smaller than the 40% or greater loss observed in many PA6 grades after conditioning. This is important for snap-fit connectors, cable clips, and fluid fittings that must maintain assembly force after exposure to humid air or condensate. The moisture-driven linear expansion of PA12 is smaller but not zero; design clearances of 0.2% to 0.5% per side are still required for parts operating in high-humidity service. Differential scanning calorimetry under ISO 11357-3 typically places the PA12 melting peak between 175 °C and 180 °C, lower than PA6 and PA66, which supports lower melt-temperature processing but also reduces the continuous-use deflection temperature. In hydrocarbon service, PA12 grades show higher environmental stress-crack resistance than short-chain nylons under bent-strip tests such as ISO 22088-3; however, petroleum-derived fuels with high aromatic content may require a barrier layer or tie-layer in multi-layer constructions.
Compared with PA11, PA12 provides similar low-moisture behaviour and a slightly lower melting point but often lower bio-based content. Compared with PA612, PA12 displays lower density and lower saturated moisture uptake under ISO 62, although PA612 may provide higher melt strength in certain extrusion grades. The choice between PA11 and PA12 is therefore governed by supply chain and part-specific mechanical requirements rather than by a decisive difference in chemical resistance.
For load-bearing parts, the design must use creep modulus rather than short-term tensile modulus. Creep modulus under ISO 899-1 decreases with time and moisture uptake; generic PA12 data show a reduction of tensile modulus of 30% to 50% after 1000 h at 23 °C at stress levels in the 10 MPa to 20 MPa range. Published data for Edgetek NJ-000/000 at long times are limited, so safety factors of 2.0 to 2.5 on ultimate tensile strength are common for static plastic parts when no grade-specific creep data are available. Under cyclic loading, weld lines and sharp corners are the controlling features; the notched Charpy value under ISO 179-1/1eA at a knit line can be more than 40% lower than the bulk value. Chemical exposure follows the general PA12 compatibility envelope: aliphatic oils, greases, diesel fuel, and many dilute salt solutions are tolerated, while concentrated mineral acids, cresol, formic acid, and some chlorinated solvents attack the amide group or swell the polymer. Melt blending with amine-based additives should be avoided because accelerated oxidative degradation can occur.
Because the unfilled grade combines low equilibrium moisture uptake with resistance to aliphatic hydrocarbons, it is used in pneumatic tubing, fuel-vapor lines, quick-connect fittings, and cable-management components. In compressed-air systems, unfilled PA12 tubing is evaluated for burst strength under ISO 14743 at 23 °C and at elevated temperature; suppliers publish pressure-temperature derating curves that reduce allowable working pressure above 60 °C. In fuel-vapor service, the polymer is generally part of a multi-layer hose construction where PA12 forms the inner or outer layer and an EVOH or fluoropolymer layer provides permeation resistance; coextrusion of the unfilled grade requires confirmation of melt strength at the specified die temperature because neat PA12 has lower melt strength than reinforced or impact-modified grades. For electrical connectors and cable ties, the unfilled grade is commonly associated with UL 94 HB at 1.5 mm thickness, but no V-0 or V-2 claim applies without manufacturer data. Food-contact or medical-device use requires a positive compliance statement against FDA 21 CFR 177.1500 and Regulation (EU) No 10/2011 for the specific lot and production plant. For European industrial products, lot-level verification against RoHS Directive 2011/65/EU and Regulation (EC) No 1907/2006 is required before import. Published data for this configuration in long-term fuel immersion are limited; qualification must therefore include the complete assembly under SAE J2260 or the relevant OEM test procedure.
For decorated or bonded parts, the low-polarity surface of unfilled PA12 should be cleaned with isopropyl alcohol or a low-aromatic hydrocarbon wipe and, if necessary, plasma-treated to raise surface energy above 40 mN/m before application of adhesives or coatings. Alkyd-based paints and some anaerobic adhesives may exhibit cure inhibition; lap-shear compatibility is evaluated under ISO 4587. The grade is not recommended for continuous use in concentrated mineral acids, cresol, formic acid, or chlorinated solvents above room temperature. Components near electroplated fasteners should be evaluated for zinc chloride stress-cracking risk because some polyamides are sensitive to cracking in the presence of zinc chloride.
