| HS Code | 350536 |
| Density | 1.01 g/cm³ |
| Melting Point | 178 °C |
| Tensile Modulus | 1900 MPa |
| Tensile Strength At Yield | 50 MPa |
| Elongation At Break | >200 % |
| Charpy Impact Strength Notched 23 C | 12 kJ/m² |
| Shore D Hardness | 72 |
| Water Absorption 24 H 23 C | 0.2 % |
| Vicat Softening Temperature | 160 °C |
| Melt Volume Flow Rate | 8 cm³/10 min |
As an accredited Arkema Rilsamid AESNO P302 TL PA12-I factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied as natural PA12 granules in 25 kg sealed bags, ensuring dry, contamination-free storage and handling. |
| Container Loading (20′ FCL) | 20′ FCL container loading of Arkema Rilsamid AESNO P302 TL PA12-I with secure, palletized packaging and safe transport. |
| Shipping | Arkema Rilsamid AESNO P302 TL PA12-I is a polyamide 12 resin shipped as solid granules. It is non-hazardous under normal transport conditions. Pack in sealed moisture-barrier bags or drums, keep dry, avoid extreme heat, and store away from direct sunlight during transit. |
| Storage | Store Rilsamid AESNO P302 TL PA12-I in its original, unopened packaging in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Maintain a consistent room temperature, typically below 30°C. Keep the resin sealed to prevent moisture absorption, which can affect processing. Reseal any partially used containers tightly. Proper storage ensures consistent performance and prevents degradation. |
| Shelf Life | Store in dry, cool conditions in unopened packaging; shelf life is typically two years from date of delivery. |
On heavy-duty vehicle assembly lines, Rilsamid AESNO P302 TL PA12-I is converted into SAE J844 air brake tube and ISO 7628:2010 auxiliary air tube through single-screw extrusion. The granules are introduced from a desiccant hopper after drying at 80 °C for 4–6 h, which lowers residual surface moisture to below 0.15 wt% before the feed throat. Barrel zones are typically set from 210 °C at the feeding section to 245 °C at the metering section, with a mixing head and a 200–250 µm breaker plate generating sufficient back pressure to homogenise the plasticiser phase. A melt pump downstream of the barrel isolates the die from screw surge, holding head pressure within 10–16 MPa and melt temperature at 230–245 °C. The tube is vacuum-calibrated through a closed water bath at 30–50 °C, with a calibration vacuum of −0.03 to −0.06 MPa and a laser scanner controlling outside diameter to ±0.05 mm. Long production campaigns on grooved-barrel extruders with 25:1 L/D have shown that melt temperatures above 250 °C produce tacky, plasticiser-enriched deposits on the calibrator sleeves and downstream haul-off rollers. Extended idle periods above 20 min at the same melt temperature shift the molecular weight distribution and generate gelled particles that interrupt the dimensional tolerance. The regrind fraction is capped at 10 wt% for air brake tube because higher fractions reduce melt strength during calibration. Finished tubes are cut into 12 m, 15 m, or 30 m coils and assembled into spiral guards, suspension height-control lines, and trailer air lines; hydrostatic burst release testing is carried out according to ISO 1402:2021, and low-temperature impact is checked after conditioning at −40 °C per ISO 179-1/1eA.
| Process parameter | Air brake tube extrusion | Thin-wall cable jacket extrusion |
|---|---|---|
| Residual moisture before extrusion | 0.15 wt% max | 0.10 wt% max |
| Barrel temperature span | 210–245 °C | 220–240 °C |
| Head pressure | 10–16 MPa | 10–15 MPa |
| Calibration vacuum | −0.03 to −0.06 MPa | Not used; crosshead pressure tooling |
| Take-off speed | Calibrated by laser micrometer, typically 20–60 m/min | 300–350 m/min |
| Critical upper melt limit | 250 °C | 245 °C |
In corrugated cable-conduit extrusion, the melt is pushed through an annular die with a corrugator immediately downstream, so the upstream pressure signature determines wall-thickness repeatability. The grade is processed at 220–240 °C through a 30:1 L/D barrier screw with a grooved feed zone and a 200 µm screen pack. Head pressure normally remains between 12 MPa and 18 MPa at screw speeds of 60–120 min⁻¹. If the head pressure oscillation exceeds 2.5 MPa over a 30 s window, the corrugator vacuum draws the still-molten tube unevenly, producing thin sections that fail the crush-resistance limits in IEC 61386-1 conduit tests. The practical remedy is to insert an independent melt pump and to reduce screw speed rather than raising barrel temperatures, because the plasticiser package begins to volatilise when the melt temperature stays above 250 °C for more than 15 min. Outputs above 150 kg/h on a 60 mm extruder can be stabilised only if the temperature difference between the die lips and the metering zone is kept to ±3 °C. Finished split conduits from 7.5 mm to 50 mm outside diameter are cut on planetary saws and used in CNC machine tools and robotics cable tracks where mineral-oil spray and metal chips are present. Published burst-strength data for this specific grade in corrugated form is limited, so suppliers relying on smooth-tube ISO 14743:2004 values must run a corrugated crush test per IEC 61386-1 before releasing production batches.
In high-vibration pneumatic automation cells, the compound is extruded into cylindrical metric tubing for push-in fittings, typically 4 mm OD × 2.5 mm ID and 6 mm OD × 4 mm ID, with outside diameter tolerance held to ±0.05 mm under DIN 73378. The calibration sleeve is sized at 1.02 times the nominal outside diameter to compensate for post-crystallisation shrinkage, and the internal bore is vented with dry air at −0.02 MPa to prevent lumen collapse. Melt temperature at the crosshead is limited to 225–240 °C; higher temperatures allow the plasticiser to migrate to the high-shear land and create irregular gloss bands along the tube. After a 24 h conditioning period at 23 °C and 50% relative humidity, the tube is release-tested for dimensional recovery by heating to 120 °C for 1 h according to ISO 14743:2004; permanent length change above 3% is rejection. The main batch-to-batch variance arises not from the polymer melt viscosity but from regrind levels above 15 wt%, which reduce the dart impact resistance at −40 °C when tested according to ISO 179-1/1eA. The converted tube is cut to 25 m and 50 m coils for ISO 14743:2004-compliant pneumatic circuits, where the plasticised PA12 grade avoids the low-temperature brittleness observed with unplasticised PA6 in unheated factory air lines.
Injection moulding of SAE J2044 fuel quick-connectors from this grade requires a specific cold-runner sequence because the plasticiser reduces melt viscosity and increases the risk of drool at the nozzle above 235 °C. The granulate is dried to 0.08 wt% moisture or below before entering a 25:1 L/D screw with a compression ratio of 2.4:1 and a shut-off nozzle. Barrel zones are set at 215/230/240/245 °C from feed to nozzle, while the nozzle itself is maintained at 235 °C to limit plasticiser loss. Injection speed is set between 60 cm³/s and 120 cm³/s, with first-stage fill to 95% of the cavity by volume and second-stage hold at 45–65 MPa for 6–10 s. Mould temperature is held at 40–60 °C. Because the material shrinks anisotropically, the sealing barb geometry is compensated by 1.4–1.8% in the flow direction and 0.9–1.2% transverse to flow, verified by optical measurement after 24 h. Weld-line elongation tested according to ISO 527-1/-2 falls below acceptance when melt temperature at the nozzle exceeds 250 °C or when moisture content stays above 0.10 wt%, as plasticiser hydrolysis creates microvoids. The screw-back position is set to produce a cushion of 5–8 mm; cushion fluctuation above 2 mm correlates with check-ring leakage and dimensional drift. The finished connectors are assembled into multilayer fuel lines and exposed to SAE J2044 leak tests under thermal cycling from −40 °C to 115 °C. This application replaces glass-filled PA66 where stress cracking in ethanol-blended fuel caused field leakage.
In engine-compartment cable jacketing, the compound is extruded through a pressure-type crosshead over a copper conductor or over a polyolefin primary insulation. A wall thickness of 0.15–0.30 mm is maintained by a 10:1 land-length-to-wall-thickness ratio in the tip-and-die set, because shorter lands cause helical melt-flow marks at draw-down ratios above 2.5:1. The melt temperature is kept between 230 °C and 240 °C, with a head pressure of 10–15 MPa. The extruder usually has a 24:1 L/D screw and a compression ratio of 2.5:1. Unlike PA6, the grade requires no moisture conditioning before jacket impact testing because the plasticised PA12 matrix retains elongation below freezing without absorbing more than 1.5 wt% water at 23 °C and 50% relative humidity. Scrape and abrasion resistance are evaluated according to ISO 6722-1:2011, and the lower coefficient of friction permits thinner walls in harness channels where repetitive cable-to-bracket contact occurs. The operational boundary is sharp: line speeds above 400 m/min on a 45 mm extruder produce melt fracture unless the crosshead temperature is raised, but raising the crosshead above 245 °C causes visible plasticiser condensation on the die face. Consequently, production is balanced at 300–350 m/min. The jacketed cables are used in 12 V and 24 V vehicle electrical harnesses. The grade is not claimed to meet a UL 94 V-0 flammability classification; flame-retardant cable constructions require a different Rilsamid formulation.
In data-centre cable management, the same grade is moulded into releasable cable ties and P-clips on 60–100 t hydraulic clamp machines. The melt is injected at 230–245 °C into cold runners with a 0.6 mm gate land; holding pressure is set to 50–70 MPa. Mould temperature is maintained at 60–80 °C to promote plasticiser diffusion to the surface-free layer and to reduce visible weld lines. The tooling uses sequential valve gates because the plasticised melt has a longer flow length than unplasticised PA12, but gate freeze occurs within 3–5 s. Hot-runner valve-gate pins cycle every 4–6 s, and gate vestige is kept below 0.10 mm. After ejection, parts are conditioned for 24 h at 23 °C and 50% relative humidity before tensile testing to ISO 527-1/-2. Mould deposits accumulate on textured surfaces after 50,000–80,000 cycles when regrind exceeds 20 wt%, and operators using automated optical sorting must compensate for gloss variability caused by plasticiser bloom at elevated mould surface temperatures. The finished ties are supplied to UL 62275-controlled configurations, but full compliance requires the integrator to validate the locking mechanism and fire behaviour on the assembled bundle.
Spiral conveyor belts and filter fabric seams use PA12 monofilament produced from this plasticised impact-modified grade on a water-bath monofilament line. The granules are extruded through a 0.5–1.2 mm spinneret at a melt temperature of 220–230 °C, quenched in water at 40–60 °C, and drawn in two heated stages. The first-stage draw ratio is set between 3.0:1 and 3.5:1 at 70–90 °C, while the second stage adds 0.5:1 to 1.0:1 at 110–130 °C. Total draw ratios above 4.5:1 induce fibrillation in the plasticised matrix, particularly when the monofilament is quenched below 35 °C or when the plasticiser concentration is non-uniform across the cross-section. Tensile strength is measured according to ISO 527-1/-2 on conditioned monofilament, but the test result is valid only after 24 h at 23 °C and 50% relative humidity. Finished monofilaments of 0.20–0.40 mm diameter are woven into seams for spiral mesh belts used in food-processing and logistics lines. In these belts, the material is chosen over polyester because it retains flexibility after repeated low-temperature cleaning cycles at −20 °C, and over PA6 because it absorbs less moisture and therefore shows lower length variation. The limitation is contact with high-acid food products: prolonged exposure to pH below 2 at 80 °C accelerates plasticiser extraction and reduces tensile strength by more than 10%, so stainless-steel or polyolefin belts are specified for that chemical environment. The extruder barrel is purged with a PA12 cleaning compound during shutdown to avoid carbonised residue at the spinneret pack.
Competitive Arkema Rilsamid AESNO P302 TL PA12-I prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Arkema Rilsamid AESNO P302 TL is a plasticised polyamide 12 (PA12-I) grade supplied as a black compound for flexible tube, hose and shaped-profile extrusion. The P302 segment in the Rilsamid AESNO series identifies a specific viscosity and plasticiser combination; the TL suffix is applied to formulations specified for tube conversion, but the exact stabilisation package must be confirmed from the supplier technical data sheet. Published data for this specific configuration is limited; the numerical ranges below are representative of plasticised PA12 of this class and should be checked against the active batch certificate.
The performance envelope of plasticised PA12 of this viscosity class places density at 1.02–1.04 g/cm³ when measured under ISO 1183-1, with a crystalline melting peak between 172 °C and 176 °C under ISO 11357-3. Hardness values obtained with ISO 868 generally fall from 55 Shore D to 65 Shore D, and tensile modulus under ISO 527-1/-2 commonly lies in the 250 MPa to 450 MPa band. The same test method shows a nominal strain at break above 200 % for virgin compound measured on dry test specimens. These values distinguish the grade from unmodified PA12, whose dry tensile modulus can exceed 1200 MPa.
Drying is the first controlling variable. Polyamide 12 absorbs moisture; saturated water uptake under ISO 62 is typically 1.5–2.0 %. Extrusion of material above 0.10 % moisture content produces hydrolysis of the amide bonds, loss of melt viscosity, surging and surface defects. A desiccant dryer capable of delivering air at a dew point of ≤ -30 °C and a temperature of 80–90 °C should be used. Residence times of 4–6 h are typical for sealed, dry hopper systems. If the plant floor exceeds 60 % relative humidity, the dry material should not remain in an open hopper beyond short intervals; conveying lines should be dried or fitted with dry-air purge.
Melt temperature is controlled in the 210–240 °C window. Barrel profiles for a 25:1 or 30:1 L/D single-screw extruder commonly start at 200 °C in the feed throat and rise to 230 °C in the metering zone, with the die head set at 220–230 °C. Plasticiser volatilisation becomes visible as die-lip deposit when the melt exceeds 250 °C. Screws with compression ratios of 2.2:1–2.8:1 and a mixing section improve uniformity; vented barrels are generally avoided because the plasticiser can be stripped under vacuum. Tooling steel should be corrosion-resistant; acidic hydrolysis products from moist resin can etch nitrided surfaces.
On a 30 mm single-screw line producing 12 mm outer-diameter tubing, melt pressure before the breaker plate is often observed in the 10–30 MPa band; pressure variation greater than ±5 % is typically associated with surging or feeding instability. Vacuum calibration sleeves of 12 mm internal diameter and closed-loop water temperature of 20–40 °C are sufficient to fix dimensions after the die. Draw-down ratios are typically held between 1.5:1 and 2.5:1 to limit orientation and post-extrusion shrinkage. Post-extrusion conditioning at 80–100 °C for up to 30 min can reduce residual stress, but longer residence at temperature increases plasticiser loss.
Incoming QC should include melt volume-flow rate under ISO 1133 at 235 °C with 5 kg load, moisture measurement by ISO 15512, and Shore D after injection moulding under fixed conditions. Lot-to-lot melt volume-flow rate drift greater than ±15 % from the supplier reference is commonly treated as a hold signal, because it may indicate moisture, molecular-weight shift, or plasticiser variation. Pellet size distribution should also be recorded; an increase in fines above 0.5 % can disturb feeding stability.
| Property | Test method | Representative range for plasticised PA12 of this class |
|---|---|---|
| Density | ISO 1183-1 | 1.02–1.04 g/cm³ |
| Melting peak | ISO 11357-3 | 172–176 °C |
| Tensile modulus | ISO 527-1/-2 | 250–450 MPa |
| Nominal strain at break | ISO 527-1/-2 | >200 % |
| Shore D hardness | ISO 868 | 55–65 |
| Water absorption, saturation | ISO 62 | 1.5–2.0 % |
| Charpy notched impact, 23 °C | ISO 179-1/1eA | No break or >40 kJ/m² |
| Charpy notched impact, -40 °C | ISO 179-1/1eA | 10–20 kJ/m² |
On corrugated tube lines, the melt-strength reduction of plasticised PA12 compared with unmodified PA12 forces a shorter distance between the die face and the corrugator block. Since the melt viscosity is lower than that of unplasticised compounds, die swell is reduced and the calibration vacuum must be adjusted to compensate. Regrind content above 20 % is generally avoided because repeated extrusion progressively depletes the plasticiser fraction, raising hardness and lowering low-temperature impact. Batch-to-batch variation in plasticiser content is detectable as a shift in melt pressure and in Shore D off the line; such drift should be investigated before changing screw speed or temperatures.
Changeover requires not only temperature reduction but also tooling review. Because the softer melt generates less die swell, the tube may exit with thinner wall if the same draw-down is maintained. In many conversions, the melt temperature can be reduced by 10–20 K relative to unplasticised PA12, and the die-head pressure falls by a measurable margin due to the lower viscosity. Puller speed and cutting blade cooling must be recalibrated; the cut surface remains tackier than unmodified PA12 below 40 °C, and compressed-air wiping or chilled blades are used to prevent smearing.
The property trade-off is explicit. A plasticised PA12-I grade will show lower tensile modulus, lower flexural stiffness, lower Shore D hardness, and higher elongation than an unplasticised PA12 of equivalent molecular weight. Low-temperature notched Charpy performance under ISO 179-1/1eA improves, but heat deflection under load and long-term creep resistance decline. Unplasticised PA12 retains better dimensional stability in hot, mechanically loaded connectors; P302 TL is preferred where flexural fatigue and minimum bending radius govern.
Long-chain polyamide 12 is selected for resistance to oils, fuels, greases and salt spray. The plasticised formulation, however, adds a second phase that can be extracted by polar and hot non-polar fluids. Accelerated ageing in diesel, biodiesel-blended fuels, or glycol coolants should be performed under closed-loop tube test protocols such as SAE J2260 or SAE J844 where applicable, with tensile strength and elongation measured before and after immersion. If plasticiser loss occurs, the tube wall hardens and shrinks; a Shore D increase above 5 points after ageing is often treated as a rejection trigger in production trials.
Continuous service temperature in air is commonly limited to 60–80 °C for plasticised PA12 under constant mechanical load; for unplasticised PA12 the same estimate may reach 80–100 °C. This gap is not a material defect but an operational boundary driven by plasticiser mobility. Avoid contact with concentrated formic acid, phenols, chlorinated solvents, and strong mineral acids above ambient temperature; these fluids dissolve or swell polyamide 12 even without plasticiser.
On regulatory documentation, the material is positioned for industrial and transport equipment. The supplier safety data sheet should state REACH 1907/2006 status and compliance with RoHS recast 2011/65/EU. It is not automatically suitable for food-contact or medical applications; any use under FDA 21 CFR 177.1500 or EU 10/2011 requires a specific written confirmation because plasticiser identity and amount affect migration limits. Similarly, potable-water approvals such as WRAS, KTW, or ACS are application-specific and should not be inferred from polymer family alone.
| Requirement | Standard or regulation | Verification basis |
|---|---|---|
| Restriction of hazardous substances | RoHS recast 2011/65/EU | SDS and supplier confirmation |
| REACH registration | REACH 1907/2006 | SDS and SVHC list |
| Food contact | FDA 21 CFR 177.1500 / EU 10/2011 | Grade-specific written confirmation |
| Potable water | WRAS, KTW, or ACS | Application-specific approval |
Moisture control determines the extruder throughput ceiling more than screw speed in humid conditions. The dryer must deliver sufficient air volume per kilogram of resin; an airflow of 3.5 m³/h per kg/h of throughput is a commonly cited desiccant dryer design target, but the dryer manufacturer's curve should be used. Return-air dew point should be verified at the hopper inlet rather than the dryer outlet because leaks in flexible ducting and unheated hopper extensions can reintroduce moisture. A flooded hopper under a ceiling fan or near a washdown station is a recurrent cause of surface roughness and lot-to-lot viscosity variation in tube plants.
Because the plasticised compound has lower melt viscosity than unplasticised PA12, water-induced degradation is not always visible as bubbles; it may appear only as a gradual loss of melt strength and an increase in die drool. Operators should record melt pressure and barrel amperage at constant screw speed; a downward drift at the same temperature is an early hydrolysis signal. Incoming moisture content above 0.15 % should block the lot from entering the extruder hopper until re-drying has been completed and verified by ISO 15512 or an equivalent Karl Fischer method.
Both PA11 and PA12 are long-chain semicrystalline polyamides with lower water uptake than PA6 or PA66. PA11 is often described by density of 1.03–1.05 g/cm³; PA12 typically shows slightly lower density and water absorption. In flexible tubing, PA11 and plasticised PA12 can compete, but PA12 often provides a different low-temperature ductility profile and lower melting peak. The choice should be made on the specific impact specimen geometry, chemical exposure and mandated test such as ISO 179-1/1eA at -40 °C, rather than on polymer family alone. Published data for this specific AESNO P302 TL configuration is limited; comparative trials should be run on the actual tube dimension.
Within the Rilsamid tube-grade range, the P302 designation implies a viscosity selected for consistent extrusion output; lower-viscosity plasticised grades may be chosen for thin-wall high-speed lines, while higher-viscosity grades are specified for thick-wall hose. The TL suffix should be confirmed as heat and light stabilised if outdoor UV exposure is specified; for continuous outdoor service, a black UV-stabilised compound is preferred, and the supplier's weathering test data should be requested.
For injection-moulded end fittings made from the same or similar plasticised PA12 compound, melt temperature should be held at 210–250 °C, mould temperature at 20–80 °C, and holding pressure selected to avoid sink marks without overpacking. Long residence time above 250 °C or high-shear hot-runner channels will degrade the plasticiser and shift part flexibility. Hot-runner systems should be externally heated and free of dead spots; cold slug wells should be reviewed because the softer grade does not mask gate blush as well as a filled or unplasticised resin.
