| HS Code | 875224 |
| Density | 1.01 g/cm³ |
| Melting Point Dsc | 178 °C |
| Vicat Softening Temperature B50 | 145 °C |
| Tensile Strength At Yield | 47 MPa |
| Elongation At Break | >50% |
| Tensile Modulus | 1700 MPa |
| Charpy Notched Impact Strength 23 C | 5 kJ/m² |
| Water Absorption 24h At 23 C | 0.7% |
| Water Absorption At Saturation In Water | 1.5% |
| Heat Deflection Temperature 0 45 Mpa | 140 °C |
| Heat Deflection Temperature 1 8 Mpa | 55 °C |
As an accredited Evonik Vestamid L2106F Nylon 12 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Evonik Vestamid L2106F Nylon 12 is supplied as granules in sealed moisture-proof 25 kg bags, ensuring safe handling and storage. |
| Container Loading (20′ FCL) | Container loading of 20' FCL: palletized bags of Vestamid L2106F nylon 12, secured, protected from moisture, and safely stowed. |
| Shipping | Evonik Vestamid L2106F Nylon 12 is a non-hazardous polyamide resin, typically shipped as solid pellets in sealed bags, drums, or bulk containers. It is not regulated as dangerous goods for road, rail, sea, or air transport. Ensure packaging is dry and labeled with product name and lot number. |
| Storage | Store Evonik Vestamid L2106F Nylon 12 in its original, unopened packaging in a cool, dry, well-ventilated area. Protect from direct sunlight, heat sources, and excessive humidity. Keep containers tightly sealed to prevent moisture absorption. Under recommended conditions, shelf life is typically at least two years. Avoid exposure to strong oxidizers. |
| Shelf Life | Typical shelf life is two years when stored in original unopened packaging in cool dry place away from direct sunlight. |
In compressed-air distribution systems operating at working pressures up to 10 bar, Vestamid L2106F is extruded as thin-wall tubing in outside diameters from 4 mm to 12 mm without addition of external plasticizer, relying on the resin’s equilibrium moisture uptake of approximately 0.7% at 50% relative humidity to maintain dimensional stability after installation. The dry blend uses the pellet at 100 phr; carbon black masterbatch based on a PA12 carrier is added at 2.0–3.0 phr for UV resistance in externally routed plant piping, and a fluoropolymer processing aid is introduced at 0.2–0.5 phr only when melt pressure rises above 180 bar. Compliance for industrial polyamide piping systems is assessed under ISO 15493-1, push-in fitting retention is verified under ISO 14743, and automotive air brake variants fall under SAE J844. Pellets are pre-dried at 80°C for 4–6 h to below 0.10% moisture before a three-zone single-screw extruder with L/D 30:1 is run at a barrel profile of 220°C in the feed zone, 235°C in the compression zone, and 240°C at the die. The melt is filtered through a 60/80 mesh screen pack; downstream vacuum calibration at 0.2 bar and cooling water at 20–40°C fix ovality before an ultrasonic diameter gauge controls outside diameter to ±0.05 mm. Finished articles include coiled air lines for pneumatic actuators, compressed air distribution tubing in automated assembly cells, low-pressure hydraulic return lines, and SAE J844 air brake tubing in commercial vehicles.
Layer adhesion between the PA12 functional layer and EVOH barrier layer is limited by differential melt viscosity at the die entry and by residual moisture in the PA12 layer, which forms steam during coextrusion and reduces interfacial peel strength. In low-permeation multi-layer fuel vapour lines specified under SAE J2260 and exposed to fuel surrogates per SAE J1681, Vestamid L2106F is run as the outer layer at 100 phr because its low melting point permits coextrusion with EVOH at a die temperature of 230–245°C without exceeding the EVOH degradation threshold of approximately 240°C. The layer thickness distribution in a five-layer construction is not governed by a single addition level; converter-specific designs commonly place the PA12 outer layer at 40–60% of total wall thickness, the EVOH barrier at 3–6%, the inner conductive or low-permeation polyamide layer at 25–40%, and a maleated polyolefin tie at 5–10%. A twin-screw compounding step is not required; the pellet is pre-dried at 80°C to below 0.08% moisture and fed directly to a five-layer coextrusion line with vacuum calibration at 0.3 bar and corrugation when required. Interfacial adhesion is tested by peel after fuel immersion; processing outside the 220–235°C melt window combined with moisture levels above 0.10% produces interfacial voids and lowers burst pressure in finished fuel vapour return tubes, filler-neck tubing, and low-permeation fuel line assemblies.
Loose-tube buffer jackets for outdoor fiber optic cables are extruded from Vestamid L2106F at a neat resin addition of 100 phr because the material’s low melt viscosity enables thin-wall coverage of 0.35–0.60 mm at line speeds up to 300 m/min without melt fracture. The process uses a 25 mm or 30 mm single-screw extruder with L/D 24:1, a melt pump to stabilize throughput against pressure fluctuation, and a 200 mesh pressure screen; barrel set temperatures run from 220°C at feed to 235°C at the die, and the melt is degassed by pre-drying at 80°C for 5 h to below 0.10% moisture. UV-stabilized black or colored jacket compounds are prepared by adding PA12-based masterbatch at 2.0–5.0 phr, with the exact loading determined by outdoor exposure requirements; no external plasticizer is used. Compliance is verified under IEC 60794-1-21:2015 for tensile, crush, and impact resistance, IEC 60794-1-22:2012 for temperature cycling from -40°C to +70°C, and IEC 60794-1-23:2012 for cable element tests; U.S. deployments may reference Telcordia GR-20-CORE. Fiber overfeeding in the loose tube is set at 0.1–0.3% to maintain strain-free optical performance, and the finished tubes are used as 12-fiber or 24-fiber buffer tubes in central tube and stranded outdoor cable construction.
When single-lumen catheter shafts are microextruded in an ISO Class 7 cleanroom, Vestamid L2106F is processed without external plasticizer because the absence of plasticizer reduces leachable mass under simulated clinical extraction and avoids plasticizer migration into drug solutions. The material is processed at 100 phr with barium sulfate radiopaque filler added at 10–30 wt% on resin content to achieve visibility under fluoroscopy; color-coded stripes are added via PA12-based masterbatch at 0.5–2.0 phr. A 20–25 mm single-screw extruder with L/D 24:1 and a gear pump maintains melt pressure below 150 bar while barrel temperatures are held at 210–230°C and die temperature at 220°C; downstream water cooling at 15–25°C and laser diameter control maintain outside diameter tolerance of ±0.03 mm. Biocompatibility is assessed under ISO 10993-1:2018 and USP <88> Class VI; food-contact status of nylon 12 resins is covered under FDA 21 CFR 177.1500, but medical-grade qualification for each finished device remains the converter’s responsibility. The extruded tube is cut into shaft segments for peripheral venous catheters, introduction sheaths, and diagnostic catheter delivery systems.
For monofilament used in precision filter fabric, diameter control tighter than ±0.02 mm across 10,000-meter spools is required, and Vestamid L2106F is selected because its low melt viscosity supports a stable post-die draw under two-stage orientation. The formulation uses dry pellets at 100 phr with titanium dioxide masterbatch at 3–5 phr for white food-contact mesh and a phenolic antioxidant at 0.2–0.5 phr for extrusion at 230–240°C; moisture must be below 0.08% to avoid bubble defects. The extrusion line consists of a 45–60 mm single-screw extruder with L/D 30:1, a gear pump, a spinneret with hole diameter of 0.8–1.2 mm, water quench at 40–60°C, first-stage draw at 3.0:1–3.5:1, hot-air oven at 140–160°C, second-stage draw to a total ratio of 4.0:1–5.0:1, and relaxation annealing at 120–130°C. Food-contact compliance is assessed under EU Regulation (EU) No 10/2011 and FDA 21 CFR 177.1500 for nylon resins; mechanical validation follows ISO 527-1/-2 for tensile strength and elongation at break. Finished monofilaments from 0.10 mm to 0.80 mm enter filter fabrics for food processing, technical filtration mesh, and precision screen applications requiring chemical resistance.
In automotive sensor cable sheathing, hot oil and zinc chloride underbody environments demand a jacket that retains impact resistance after thermal aging; Vestamid L2106F is extruded as a 0.20–0.40 mm jacket over fluoropolymer-insulated conductors. The compound is added at 100 phr with carbon black masterbatch at 2–4 phr and an antioxidant/hydrolysis stabilizer package at 0.3–0.8 phr; the jacket is not crosslinked, so edge trimmings can be reground and reintroduced at converter-approved levels not exceeding 20 wt% to limit viscosity shift. Processing uses a 35 mm single-screw extruder with L/D 28:1, melt temperature of 230–245°C, and pressure of 120–160 bar on a crosshead die with vacuum sizing. Compliance for automotive single-core cables is verified under ISO 6722, including short-term aging at 125°C and low-temperature winding at -40°C; the finished cables serve wheel-speed sensors, brake-wear sensors, and engine-compartment harnesses.
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Evonik Industries supplies Vestamid L2106F as a polyamide 12 film-extrusion resin based on laurolactam monomer. The repeating unit contains 12 carbon atoms between amide linkages, giving lower amide-group density and a lower density than polyamide 6 or polyamide 66. Representative physical data published for the grade include a density of 1.01 g/cm³ at 23 °C under ISO 1183-1 and a peak melting endotherm near 176 °C under ISO 11357-3. The suffix “F” designates a film-grade rheology and additive package. Medium-viscosity PA12 film grades are commonly specified between 6 cm³/10 min and 10 cm³/10 min at 235 °C under 5 kg load following ISO 1133-1:2022; the certificate of analysis gives the lot-specific value.
At the molecular level, the 12-carbon backbone reduces equilibrium moisture uptake relative to short-chain polyamides. At saturation in water at 23 °C, PA12 absorbs approximately 1.5 % under ISO 62, whereas PA6 absorbs roughly 2.8 % and PA66 can exceed 8 %. At 50 % relative humidity, PA12 equilibrates near 0.7–0.8 % moisture. This reduces hydrolysis, viscosity drift, and dimensional change during storage, but the resin is not moisture-insensitive; exposure above 60 % relative humidity before drying raises the energy demand of the desiccant dryer and increases the risk of hydrolysis during extrusion.
In flexible packaging, PA12 is selected when converted film must retain impact resistance and low-temperature flexibility after exposure to water, oils, or greases. Water-induced plasticization is lower in PA12 than in PA6 or PA66 because the aliphatic chain lowers hydrogen-bonding density. The dry PA12 film tensile modulus is approximately 1,500 MPa under ISO 527-1:2019, compared with 2,800 MPa for PA6 and 3,000 MPa or higher for PA66 in comparable blown-film grades. Elongation at break exceeds 200 % for PA12, while PA6 film grades commonly fall between 50 % and 100 % depending on orientation. The lower modulus of PA12 translates to lower puncture resistance at equal thickness but improved flex-crack resistance and reduced moisture-driven shift in oxygen transmission. Table 1 summarizes representative property comparisons.
| Property | Test method | Vestamid L2106F | PA6 film grade | PA11 film grade |
|---|---|---|---|---|
| Density at 23 °C | ISO 1183-1 | 1.01 g/cm³ | 1.13 g/cm³ | 1.03 g/cm³ |
| Melting endotherm | ISO 11357-3 | 176 °C | 220 °C | 189 °C |
| Water absorption at saturation | ISO 62 | 1.5 % | 2.8 % | 1.9 % |
| Tensile modulus | ISO 527-1:2019 | 1,500 MPa | 2,800 MPa | 1,300 MPa |
| Elongation at break | ISO 527-3:2018 | >200 % | 50–100 % | >200 % |
Values in Table 1 are representative data for unfilled film grades and should not be substituted for the current Evonik technical datasheet. The comparisons are most informative when moisture state is held constant because PA6 and PA66 undergo greater property shifts after conditioning at 50 % relative humidity. A PA12 film tested at 0.2 % moisture will be closer to its dry-state modulus than a PA6 film at the same moisture content, which is below its equilibrium at 50 % RH.
Crystallinity development in Vestamid L2106F is controlled by cooling rate and drawing conditions. Slow cooling produces a higher crystalline fraction and lower haze but increases film stiffness; rapid quenching on a chill roll at 40 °C reduces spherulite size and improves clarity but leaves a higher amorphous fraction. The crystallinity after slow cooling is typically in the range of 35 % to 45 % for PA12, lower than the 50–60 % range common for PA6. This lower crystallinity contributes to lower modulus and better low-temperature flexibility but raises oxygen transmission relative to PA6. The film processor therefore selects crystallinity not only by optics but also by the barrier and shrinkage requirements of the final structure.
Drying and extrusion of Vestamid L2106F on production-scale cast-film lines are governed by melt-temperature and moisture limits. A desiccant dryer delivering a dew point of -40 °C or lower is typical; pellets are held at 80 °C for 4–6 h to reach a feed moisture below 0.10 %. On a single-screw extruder with 30:1–35:1 L/D and a barrier screw, barrel-temperature profiles are commonly set from 210 °C in the feed zone to 240 °C before the melt pump, with die temperature held at 230–250 °C. Melt pressure variation at constant screw speed above ±2 bar can indicate feed bridging, agglomerated pellets, or steam draw marks at the die. On blown-film towers, frost-line height fluctuations above ±10 mm on a 100–150 mm die often correspond to unstable bubble geometry and gauge variation beyond ±5 %.
Rheological behavior of Vestamid L2106F determines die selection. Capillary melt viscosity at 235 °C and 1,000 s⁻¹ is sufficiently shear-thinning for monolayer cast film but may be too low for very thick sheet or high-blow-ratio unstabilized bubbles. Internal bubble cooling and a die gap of 1.2–2.0 mm are common for PA12 blown film. Melt strength is lower than a high-viscosity PA12 extrusion grade; if gauge below 20 µm is required, a higher-viscosity variant may be necessary to prevent bubble fluttering. Lot-to-lot viscosity variation can shift flow distribution in coextrusion feedblocks; the converter should monitor gear-pump suction pressure and layer thickness variation after each lot change.
The “F” grade of Vestamid L2106F is differentiated from injection-molding PA12 grades by its additive system and rheological profile. The film-grade package may include processing stabilizers and may omit mold-release agents found in injection-molding variants. Slip and antiblock additives are commonly compounded downstream by the converter rather than by the resin producer, because coefficient-of-friction targets vary with layer structure, gauge, and sealant chemistry. Published haze data for this specific configuration is limited; film haze is strongly governed by die gap, chill-roll temperature, draw ratio, and cooling rate rather than resin lot alone. On cast lines, chill-roll temperatures between 40 °C and 80 °C are often used to tune crystallinity and optics; lower roll temperatures tend to reduce haze but can increase post-extrusion shrinkage. When high transparency is required, edge gel and microgel control are more critical than the base resin choice. Filtration of the melt through a 40–60 µm breaker plate or continuous screen changer can reduce visible defects in films below 30 µm.
Tensile and tear properties should be measured on actual film rather than resin plaques. When tested on 50 µm cast film according to ISO 527-3:2018, the typical secant modulus is 1,500–1,700 MPa in the machine direction and 1,300–1,500 MPa in the transverse direction, depending on draw ratio. Elmendorf tear under ASTM D1922-15 is strongly gauge-dependent; films below 30 µm may show tear anisotropy if the draw ratio exceeds 3:1. At temperatures below -30 °C, PA12 retains a higher elongation at break than PA6, which reduces cracking in deep-draw packaging and converter-specific structures. These values are representative and should be confirmed for each final layer structure and orientation level.
Because PA12 has a melting endotherm near 176 °C, its heat-seal initiation temperature is lower than PA6 and can be exploited in multilayer sealant films. A seal initiation temperature from 150 °C to 165 °C is commonly observed for PA12 cast films at 0.5 N/mm² sealing pressure and 0.5 s dwell, measured by ASTM F88/F88M-21. Seal strength then depends on molecular orientation, contact pressure, and crystallinity; high seal temperatures above 200 °C can induce melt flow out of the seal area. During coextrusion, the PA12 layer should not be held above 260 °C for more than 5 min to limit thermo-oxidative degradation; purging with a low-melt-index polyolefin is preferred between product changes. Feedblock and die design must prevent long residence-time pockets, because discoloration and gel formation can increase faster in PA12 than in polyethylene.
Chemical compatibility gives PA12 an advantage in oil, grease, and fuel-contact films. The aliphatic backbone resists swelling in aliphatic hydrocarbons, diesel fuel, and hydraulic fluids; however, strong mineral acids, phenols, and certain chlorinated solvents can attack the amide linkage and reduce molecular weight. In fuel-contact applications, PA12 is widely used for multi-layer fuel lines and films because of low permeation to automotive fuels and resistance to zinc chloride stress cracking. The barrier performance in a film structure depends on layer thickness and tie-layer integrity; published data for this specific configuration is limited when comparing coextruded fuel-film constructions. For food packaging, PA12 can provide a lower-temperature seal layer and a grease-resistance layer in combination with polyethylene.
Regulatory status of Vestamid L2106F depends on the final formulation, layer structure, and food-contact or medical application. Polyamide 12 produced from laurolactam may meet the compositional requirements of FDA 21 CFR 177.1500 when residual monomer and extractables are within specified limits. European food-contact compliance is assessed under EU Regulation 10/2011 through migration testing in the intended food simulant, not by the resin grade alone. For medical film and packaging, cytotoxicity testing according to ISO 10993-5:2009 and USP Class VI data are lot-and-supplier-specific and must be requested from Evonik for the current L2106F lot. REACH and RoHS declarations are provided via the safety data sheet. Table 2 summarizes applicable standards and typical verification requirements.
| Regulation or standard | Designation or clause | Typical verification requirement |
|---|---|---|
| Food contact, United States | FDA 21 CFR 177.1500 | Resin composition and extraction limits specific to the final article |
| Food contact, European Union | EU Regulation 10/2011 | Migration testing in fatty, aqueous, acidic, or dry-food simulants |
| Cytotoxicity | ISO 10993-5:2009 | Lot-specific medical-grade evaluation for film and packaging use |
| United States Pharmacopeia | USP Class VI | Supplier confirmation for the selected PA12 grade and lot |
| REACH and RoHS | EU 1907/2006; EU 2011/65/EU | SDS and supplier declaration for final article compliance |
Compared with other PA12 grades in the Vestamid line, L2106F is positioned for film rather than injection molding or powder-coating operations. Higher-viscosity PA12 grades may be selected for blown-film bubble stability when high melt strength is required, whereas lower-viscosity grades are preferred for thin-gauge cast film with high line speed. The L2106F designation should not be inferred as identical in additive package to glass-fiber-reinforced or plasticized PA12 grades; those products have different tensile modulus, elongation, and moisture-absorption profiles. A converter evaluating L2106F against a PA11 film grade will commonly observe similar moisture uptake and flexibility, but PA12 provides lower density and can offer a different sealing profile. Published data for this specific configuration is limited when comparing lot-to-lot optical variability; converter trials remain necessary for final film qualification.
