| HS Code | 917193 |
| Density | 1.02 g/cm³ |
| Melting Point | 168 °C |
| Vicat Softening Point | 140 °C |
| Tensile Strength | 35 MPa |
| Elongation At Break | >300% |
| Flexural Modulus | 400 MPa |
| Charpy Impact Strength Notched 23 C | No break |
| Shore D Hardness | 63 |
| Water Absorption 24 H | 0.7% |
| Melt Flow Rate 235 C 5 Kg | 10 g/10 min |
As an accredited Arkema Rilsamid AMNO PA12 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Arkema Rilsamid AMNO PA12 is supplied as pellets in sealed, moisture-resistant 25 kg bags. |
| Container Loading (20′ FCL) | 20′ FCL container loading of Arkema Rilsamid AMNO PA12: secure, full container load, properly packed and protected for safe transport. |
| Shipping | Arkema Rilsamid AMNO PA12 is a polyamide 12 resin supplied as granules. Ship in sealed, moisture-proof packaging to prevent water absorption. Avoid excessive heat and direct sunlight during transport. Non-hazardous under normal conditions, but handle with care to prevent dust and contamination. |
| Storage | Store Arkema Rilsamid AMNO PA12 in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and ignition sources. Keep the original container tightly sealed to prevent moisture absorption and contamination. Avoid contact with strong oxidizers. Maintain moderate temperatures and low humidity, and follow shelf-life recommendations for optimal processing performance. |
| Shelf Life | Shelf life is typically two years from manufacture when stored sealed, cool, and dry, protected from moisture and UV. |
On automotive coextrusion lines producing fuel vapor recovery and evaporative emission tubing, Rilsamid AMNO PA12 is processed through a three-layer die with a spiral mandrel melt gap of 0.5–1.0 mm and a wall-thickness split of 10–15 % outer PA12, 3–8 µm tie layer, and 85–90 % PA12 barrier layer. This configuration is selected because the barrier layer must remain dimensionally stable after continuous exposure to oxygenated gasoline at 60 °C and must not delaminate during −40 °C cold-impact audits. Field data from production lines show that residual moisture above 0.08 wt% in the PA12 feed creates internal splay and intermittent tie-layer delamination; hopper dryers are therefore set to 80 °C for 4–6 h with a dew point below −40 °C.
Compliance standards: SAE J2260 for ultra-low-permeation nonmetallic fuel system tubing, SAE J1737 for gravimetric hydrocarbon loss testing, ISO 527-2 for tensile properties, and ISO 179-1 for Charpy impact at −40 °C.
Formulation addition ratio: 91.5–94.5 wt% Rilsamid AMNO in the barrier layer; 0.3–0.6 wt% copper-free heat stabilizer masterbatch; 0.5–1.5 wt% carbon black or UV masterbatch; 0.1–0.3 wt% processing lubricant; external plasticizer masterbatch at 4.0–7.5 wt% only when the tube must pass dead-stroke impact below −40 °C.
Downstream production process: three-extruder coextrusion line with 30:1 L/D barrier screws, melt temperature 230–245 °C, vacuum calibrator water at 20–25 °C, line speed 30–80 m/min, ultrasonic wall-thickness gauge controlling OD tolerance to ±0.05 mm, and post-extrusion conditioning at 23 °C and 50 % RH for 4 h.
Terminal product types: fuel tank vent lines, carbon canister purge lines, filler neck vent hoses, and onboard refueling vapor recovery tubing.
The dominant failure mode on coiled air brake lines converted from PA12 is not instantaneous burst but micro-crack propagation in the outer wall after repeated parking-brake impulse cycles at −40 °C. Production batches processed on a 30:1 L/D single-screw extruder with a high-compression barrier screw control this by maintaining melt temperature within 225–235 °C, which limits oxidative molecular weight loss and prevents the outer skin from becoming brittle under flex fatigue.
Terminal product types: coiled tractor-to-trailer air brake lines, straight chassis brake tubing, suspension air lines, and lift axle pneumatic control lines.
Compliance standards: SAE J844 Type A and Type B nonmetallic air brake tubing, FMVSS 571.106, ISO 7628-1. Qualification includes cold impact at −40 °C, oil leaching after 70 h immersion in mineral oil at 100 °C, and burst pressure verification at 12–15 MPa on 6.0 mm OD × 1.0 mm wall tube.
Formulation addition ratio: 96.5–98.5 wt% Rilsamid AMNO; 0.5–1.5 wt% carbon black/UV masterbatch; 0.2–0.5 wt% antioxidant masterbatch; 0.1–0.2 wt% internal lubricant. External plasticizer is limited to 4.0–6.0 wt% in Type B only; Type A constructions are typically run without external plasticizer to retain burst margin.
Downstream production process: extrusion with vacuum sizer at 12–18 kPa, water quench at 18–22 °C, post-conditioning for 24 h at 23 °C/50 % RH, then spiral coiling on automated mandrels. Online three-axis diameter gauges detect ovality before coiling; ovality above 0.05 mm is rejected.
Line speed capability for gel-filled loose-tube buffering with Rilsamid AMNO is typically constrained by melt stability and tube concentricity, not by the resin itself. Long-haul cable manufacturers run 24:1 L/D single-screw extruders with gear melt pumps and fiber-pay-off capstans at 300–600 m/min. The PA12 tube must resist gel migration and hydrogen generation inside the tube while providing kink-free fiber slack at 0.2–0.5 % overlength; this is checked by excess fiber length measurement after water soaking.
Compliance standards: IEC 60794-1-21 for mechanical tests, IEC 60794-1-22 for environmental cycling, GR-20-CORE for generic cable requirements, and IEC 60811-502 for jacket shrinkage after 24 h at 100 °C.
Downstream production process: simultaneous extrusion of two to six buffer tubes around unstranded fibers with thixotropic gel injected at 45–60 °C into the tube head. Melt temperature is 230–240 °C, water quench is 20–25 °C, tube OD is 1.5–3.0 mm, and wall thickness is 0.3–0.5 mm. A hot water post-bath at 70–80 °C anneals residual orientation and stabilizes fiber excess length.
Formulation addition ratio: 94.0–97.0 wt% Rilsamid AMNO; 0.2–0.4 wt% antioxidant masterbatch; 0.05–0.15 wt% nucleating agent; 0.05–0.15 wt% processing lubricant. Carbon black is added at 0.5–1.5 wt% only for outdoor armored jackets, not for natural loose-tube buffer applications.
Terminal product types: central core loose tubes, stranded loose tube outdoor cables, fiber-to-the-antenna microcables, and hybrid copper/fiber cables.
At subsea hydrostatic collapse test pressures above 30 MPa, the outer sheath of a control umbilical must retain dimensional stability in seawater at 4 °C while resisting abrasion from layup stranding and installation equipment. Subsea production control umbilicals twisted with hydraulic control lines, electrical cables, and fiber-optic elements use Rilsamid AMNO PA12 sheathing for this purpose. Outer sheath lines are built on rotating-arm extruders with 30:1 L/D barrier screws and pressure tooling that compress the sheath over a twisted bundle at 10–25 m/min. A wall-thickness variation greater than ±0.5 mm has caused hydrostatic collapse at simulated water depths beyond 300 m during API-specified factory acceptance tests. Published data for this specific configuration is limited; end users qualify through full-scale hydrostatic soak tests rather than relying only on resin supplier datasheets.
Factory acceptance standard anchor: API Spec 17E and ISO 13628-5 for subsea production control umbilicals; ISO 62 for water absorption; ISO 527-2 for tensile properties after aging; ISO 4892-2 for accelerated weathering. Operator specifications often add differential scanning calorimetry to verify crystallinity remains below 30 % after extrusion.
Formulation addition ratio: 95.0–96.5 wt% Rilsamid AMNO; 3.0–4.5 wt% carbon black/UV stabilizer masterbatch; 0.4–0.7 wt% heat stabilizer; 0.1–0.2 wt% processing aid. No external plasticizer is used in marine outer sheaths because plasticizer migration would reduce cold-water dimensional stability and abrasion resistance.
Sheathing line setup: bundle preheat to 60–80 °C with induction heaters; extruder zones set 225–245 °C; melt pressure kept below 25 MPa; water trough maintained at 15–20 °C; spark test at 10 kV/mm; ink-jet traceability marking per API 17E.
Terminal product types: subsea umbilical outer sheaths, flying leads, hydraulic control line jackets, and subsea distribution unit jumpers.
When the hot runner manifold is balanced for a four-cavity fuel quick connector tool, the injection pressure profile must be profiled to prevent jetting and weld-line brittleness in Rilsamid AMNO. Injection molders processing this grade for gasoline and alcohol fuel quick connectors run 20:1 L/D reciprocating screws with a back pressure of 8–12 MPa and injection velocity profiles that reduce shear heating at the gate. Mold temperature is controlled at 40–80 °C to reduce post-molding shrinkage to 0.8–1.2 % and to pass leak tests after fuel immersion.
Qualification standards: SAE J2044 for quick-connect couplings, SAE J1737 for hydrocarbon loss testing, ISO 527-2 for tensile properties, and ISO 179-1 for impact. Alcohol fuel aging is run with ISO 1817 reference fuel C and aggressive E10/E85 blends at 60 °C for 1,000 h.
Formulation addition ratio: 82.0–90.0 wt% Rilsamid AMNO; 8.0–15.0 wt% impact modifier masterbatch; 0.2–0.5 wt% heat stabilizer; 0.05–0.15 wt% nucleant. Regrind addition is limited to 20 wt% of total shot weight to preserve dimensional control in snap-fit retention areas.
Injection molding process: residual moisture is reduced to 0.08 wt% by desiccant drying at 80 °C for 4–6 h; melt temperature 245–260 °C; fill time 0.5–1.5 s; packing pressure 60–80 MPa; cooling time 10–18 s depending on gate size. Clamp force is derived from projected area and cavity pressure up to 60 MPa. Annealing at 80 °C for 4 h may be used to stabilize snap-fit retention and reduce stress cracking in alcohol fuel service.
Terminal product types: fuel delivery quick connectors, vapor line retaining clips, fuel filter housings, and diesel return line connectors.
Across railway undercarriage and industrial air distribution, PA12 control tube lines are accepted when the extrusion line can maintain ovality below 0.05 mm and wall thickness within ±0.03 mm. The principal processing bottleneck is uneven quenching; multiple-axis vacuum sizing with 12–18 kPa vacuum and a 20–25 °C water bath controls OD on a 6.0 mm tube. Operators running 25:1 L/D barrier screws report that prolonged melt residence above 245 °C increases black spec formation from degraded carbon black masterbatch.
Processing boundary: single-screw extruder 25:1 L/D with barrier screw and static mixer; melt temperature 230–245 °C; die pressure 10–25 MPa; in-line ink-jet marking; cut-to-length or reel winding. Post-conditioning at 23 °C/50 % RH for 12 h stabilizes final dimensions before packing.
Qualification standards: DIN 73378 for polyamide tubing in motor vehicles, ISO 3949 for plastic hose and hose assemblies, ASTM D638 for tensile, and ISO 8573-1 for compressed air purity. Oil compatibility is verified by hardness and volume change after immersion in mineral oil at 70 °C for 168 h.
Formulation addition ratio: 95.5–98.0 wt% Rilsamid AMNO; 0.5–2.0 wt% colorant/UV masterbatch; 0.2–0.4 wt% antioxidant; 0.05–0.2 wt% processing lubricant. No flame retardant or external plasticizer is used in standard industrial pneumatic tube grades.
Terminal product types: railway pneumatic control lines, coiled handheld tool air supply tubes, multi-core pneumatic bundles, compressed air distribution tubes, and lubrication tubing for industrial machinery.
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As a plasticized polyamide 12 grade, Arkema Rilsamid AMNO PA12 is supplied in pellet form for injection molding and extrusion applications in which low-temperature ductility, low moisture uptake, and resistance to aliphatic hydrocarbon fluids are simultaneous requirements. The material is not a single-property resin; its engineering value derives from a balance of flexibility, chemical resistance, and dimensional stability. Arkema technical literature reports density in the range of 1.03–1.04 g/cm³ under ISO 1183-1:2019, a melting endotherm near 170–176°C under ISO 11357-1/-3, and melt volume-flow rate in the range of 5–15 cm³/10 min at 235°C/2.16 kg under ISO 1133-1:2022. The dry-as-molded tensile modulus is commonly reported in the range 650–900 MPa under ISO 527-1/-2, which places the grade below unplasticized PA12 and well below PA6 or PA66 in stiffness. This lower modulus is accompanied by nominal strain at break exceeding 200% under ISO 527-1/-2.
On a molecular level, polyamide 12 contains 11 methylene units per amide group, yielding an amide-group concentration of approximately 1 amide per 12 carbon atoms. PA6, by comparison, has 1 amide group per 6 carbon atoms. That structural difference reduces equilibrium water absorption in PA12 and explains why Rilsamid AMNO is specified where humid-air dimensional change and post-molding shrinkage must remain low. Saturation water absorption for the plasticized PA12 grade is typically reported in the range 1.1–1.5% under ISO 62, whereas PA6 and PA66 commonly reach 9–10% and 8–9%, respectively, in fully saturated conditions. The lower moisture uptake also reduces the drying burden on production lines equilibrated at 50% relative humidity: a plasticized PA12 pellet lot can be brought below a process-safe residual moisture level of 0.05% with substantially less drying energy than a PA6 lot at the same ambient condition.
In a moist intake-air environment, dimensional change in nylon components is not linear with relative humidity. Polyamide 12 absorbs less water because its aliphatic segments are longer and its amide density is lower. A representative PA6 grade can exhibit a dimensional change of 0.25–0.35% across a relative-humidity swing from 20–80% RH, while plasticized PA12 typically holds change below 0.15% in the same interval. This matters in underhood electrical connectors and snap-fit clips, where post-molding shrinkage and water-induced expansion can alter snap-fit engagement force and connector terminal retention. Compared with short-chain polyamides, Rilsamid AMNO offers lower tensile strength and lower heat deflection temperature, but the trade-off includes more stable engagement force in humid air and better resistance to hydrolysis in hot-water service. Unplasticized PA12 provides higher stiffness and frequently lower fuel permeation, but less flexibility; the plasticized AMNO grade exhibits lower flexural modulus and higher elongation, making it suitable for clips and tubing that must be assembled by machine or hand without stress whitening.
Representative dry-as-molded data for Arkema Rilsamid AMNO PA12 are consolidated in Table 1. These values are not maximum design allowables; they represent typical values based on injection-molded specimens conditioned to dry-as-molded state. Batch-to-batch variation and processing history affect final properties.
| Property | Test method | Unit | Representative value |
|---|---|---|---|
| Density | ISO 1183-1:2019 | g/cm³ | 1.03–1.04 |
| Melting temperature, 10 K/min | ISO 11357-1/-3 | °C | 170–176 |
| Vicat softening temperature, 10 N, 50 K/h | ISO 306 | °C | 130–150 |
| Tensile modulus, 1 mm/min | ISO 527-1/-2 | MPa | 650–900 |
| Yield stress, 50 mm/min | ISO 527-1/-2 | MPa | 25–35 |
| Nominal strain at break | ISO 527-1/-2 | % | >200 |
| Charpy notched impact strength at 23°C | ISO 179-1/1eA | kJ/m² | 7–12 |
| Charpy notched impact strength at −30°C | ISO 179-1/1eA | kJ/m² | 4–8 |
| Water absorption, saturation in water at 23°C | ISO 62 | % | 1.1–1.5 |
| Shore D hardness, 15 s | ISO 868 | — | 60–70 |
| Melt volume-flow rate at 235°C/2.16 kg | ISO 1133-1:2022 | cm³/10 min | 5–15 |
The melt volume-flow rate at 235°C/2.16 kg is particularly relevant for multicavity tooling. At the lower end of the 5–15 cm³/10 min range, thin-wall filling may require higher melt temperature; at the upper end, plasticizer migration or jetting may reduce surface quality. The tensile modulus range is also product-specific: a plasticized grade at 650 MPa modulus will withstand repeated bending in corrugated tube applications, but it will not provide the same tensile strength as an unplasticized PA12 grade with modulus above 1200 MPa. Comparative material-selection data are given in Table 2.
| Property | Arkema Rilsamid AMNO PA12 | Unplasticized PA12 | PA6 | PA66 |
|---|---|---|---|---|
| Density, ISO 1183-1 | 1.03–1.04 g/cm³ | 1.01–1.03 g/cm³ | 1.13–1.15 g/cm³ | 1.13–1.15 g/cm³ |
| Moisture saturation, ISO 62 | 1.1–1.5% | 1.0–1.3% | 9.0–10.0% | 8.0–9.0% |
| Tensile modulus, ISO 527-1/-2 | 650–900 MPa | 1200–1600 MPa | 2800–3200 MPa | 3000–3400 MPa |
| Charpy notched impact at −30°C, ISO 179-1/1eA | 4–8 kJ/m² | 6–9 kJ/m² | 3–5 kJ/m² | 4–6 kJ/m² |
| Melting temperature, ISO 11357-1/-3 | 170–176°C | 172–178°C | 220–225°C | 260–265°C |
Before melt processing, the resin must be dried to a residual moisture level below 0.05% using a desiccant dryer. A typical condition is 80°C for 4–6 hours; the air dew point should be at or below −20°C. Drying at higher temperatures can initiate plasticizer migration to the pellet surface, which can later produce screw slip and feed throat bridging in production-scale extruders. Single-screw extruders with L/D ratios of 24:1 to 30:1 and compression ratios of 2:1 to 3:1 are acceptable. Barrel temperatures from the feed zone to the die are commonly set between 220°C and 245°C. Melt temperatures above 260°C should be avoided because localized overheating can increase plasticizer volatilization and generate low-molecular-weight degradation products. Shot residence time should be kept below 5 min, and screw speed should be limited to 50–150 min⁻¹ for general-purpose screws.
In injection molding, recommended barrel temperatures often follow a profile of 230–245°C in the feed and compression zones with a nozzle setting near 235°C. Mold temperatures between 30°C and 60°C allow adequate crystallinity. Injection pressures of 60–100 MPa and hold pressures of 40–60 MPa are typical for medium-flow tools. If the mold is held below 30°C, quenched amorphous skin may reduce low-temperature Charpy values and increase as-molded shrinkage variation. Excessively high back pressure above 1.5 MPa can generate shear heating and should be avoided. Production-scale failure modes observed with such plasticized PA12 grades include splay on part surfaces due to residual moisture, nozzle drool from low-viscosity melt, and brittle gate halo when the gate freezes before packing is complete. The latter is controlled by gate size at least 60–70% of the adjacent wall thickness and by holding pressure until gate solidification.
For automotive fuel-vapour tubing, snap-fit clips, flexible cable channels, and pneumatic tubing connectors, Arkema Rilsamid AMNO PA12 provides lower assembly force and better stress-cracking resistance than glass-filled short-chain nylons. In corrugated tubing, the flex modulus range permits tight bending radii without kinking at −40°C. The material has a Shore D hardness of 60–70 under ISO 868, which is high enough to resist abrasive wear but low enough to permit snap-fit deflection. This product is used in injection molding of electrical clips where retention force must survive temperature cycling from −40°C to 85°C. Under those conditions, thermal expansion and moisture uptake of PA12 are lower than those of PA66, reducing connector spring relaxation. In cable jacketing and tube extrusion, the plasticized melt supports a stable tube profile at line speeds typical of PA12, though the die land and draw ratio should be adjusted to the lower melt strength of the plasticized grade.
Impact performance under winter-start conditions is not a single-point material property. For Rilsamid AMNO, notched Charpy values at −30°C are typically in the range 4–8 kJ/m² under ISO 179-1/1eA, but the exact value in a part is strongly dependent on weld lines, moisture conditioning, and orientation. A dry-as-molded PA66 part may show notched Charpy values below 4 kJ/m² at −30°C, whereas the PA12 backbone retains more ductility. However, the plasticizer in AMNO can migrate to the surface after long-term aging above 100°C, and low-temperature impact may decline if the material is annealed for extended periods at high temperature. This is an operational boundary that must be considered in engine-compartment components subjected to continuous service above 110°C.
Chemical compatibility of Rilsamid AMNO PA12 is controlled by the polyamide backbone and the plasticizer. The grade resists aliphatic hydrocarbons, mineral oil, diesel fuel, and many zinc-free lubricants. Aromatic hydrocarbons such as toluene and xylene can cause swelling, and concentrated strong acids, phenols, and oxidizing agents are excluded from service. For fuel blends containing more than 20% methanol or aggressive oxygenates, published data for this specific configuration is limited; qualification should include immersion testing under ISO 175:2010 and oxidative aging under ISO 188:2023 at the expected service temperature. The residual monomer and oligomer content is controlled to meet food-contact requirements only where the final component is confirmed against European Commission Regulation (EU) No 10/2011 and FDA 21 CFR 177.1500; confirmation should be obtained for the specific grade and colorant package. The product is not recommended for continuous immersion in hot water above 90°C because hydrolysis can degrade the backbone over thousands of hours; however, short-term exposure is tolerated better than short-chain nylons. Compared with unplasticized PA12 grades supplied by Arkema, AMNO provides lower flexural modulus and higher elongation but lower tensile strength and lower Vicat softening point.
