| HS Code | 607626 |
| Product Name | Encom Polymers EnLon F0PX20GF Amorphous Nylon, 20% Glass Filled, Flame Retardant |
| Material Type | Amorphous Nylon (PA), 20% Glass Fiber Reinforced, Flame Retardant |
| Glass Fiber Content | 20% |
| Specific Gravity | 1.35 g/cm³ |
| Tensile Strength At Break | 115 MPa |
| Tensile Modulus | 8.0 GPa |
| Flexural Strength | 160 MPa |
| Flexural Modulus | 6.5 GPa |
| Izod Impact Notched 23 C | 45 J/m |
| Heat Deflection Temperature 1 82 Mpa | 125 °C |
| Glass Transition Temperature | 145 °C |
| Ul94 Flammability Rating | V-0 |
| Water Absorption 24h | 0.3% |
| Mold Shrinkage | 0.2 - 0.4% |
As an accredited Encom Polymers EnLon F0PX20GF Amorphous Nylon, 20% Glass Filled, Flame Retardant factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Encom Polymers EnLon F0PX20GF amorphous nylon, 20% glass filled, flame retardant, supplied in 25 kg sealed moisture-barrier bags. |
| Container Loading (20′ FCL) | Load 20′ FCL with Encom Polymers EnLon F0PX20GF amorphous nylon, 20% glass filled, flame retardant; ensure dry, ventilated, and secure stowage. |
| Shipping | Ship as non-hazardous plastic resin, but avoid moisture and excessive heat. Package in sealed, dry containers with desiccant. Use covered trucks to prevent exposure to rain or condensation. Keep away from open flames. Standard ground freight is acceptable; no special hazmat labeling required for this amorphous nylon compound. |
| Storage | Store in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and open flames. Keep the original sealed container tightly closed to prevent moisture absorption, which can degrade the amorphous nylon. Avoid exposure to oxidizing agents. Maintain stable temperatures and low humidity for optimal shelf life. |
| Shelf Life | Shelf life is typically two years from manufacture when stored unopened in original packaging, in a cool, dry place. |
Molding of Encom Polymers EnLon F0PX20GF in connector applications where the wall section falls between 0.75 mm and 1.5 mm has to account for glass-fiber length distribution after plastication. The compound is supplied at a nominal 20 wt% glass loading; when processing is conducted on a reciprocating screw with 18–22 L/D ratio and a compression ratio of 1.8–2.0:1, screw speeds above 150 rpm should be restricted because localized shear heating at the decompression zone generates fiber attrition that depresses tensile strength at the knit line. For terminal blocks and PCB headers the relevant compliance path is IEC 61984:2023 for connector safety, UL 94 V-0 at the minimum used wall thickness, and material pre-selection according to UL 746B:2019; comparative tracking index is evaluated following IEC 60112:2020. Because published RTI data for this specific grade is limited, end-product qualification at the operating temperature of the device is required before specifying the material in fixed wiring connectors. Regrind addition in connector bodies may be used at 0–10 wt% only when the source is clean sprues/runners dried to <0.12 wt% moisture and when UL 94 V-0 is re-verified on molded parts at the minimum wall. Injection molding parameters within the drying/melting window: pre-dry in a desiccant dryer at 80–90°C for 4–6 h with a dew point of -30°C or lower; maintain melt temperature between 260–285°C, mold temperature 80–100°C, and hold pressure at 60–90 MPa hydraulic to minimize post-molding shrinkage and to prevent surface read-through of glass fibers. Batch-to-batch variance in glass-fiber length distribution should be tracked by recording peak injection pressure and melt cushion; drift above ±5% from the validated mean indicates a shift in shear history. Finished product types include terminal block insulating bodies, pluggable PCB header shells, and DIN-rail-mounted connector housings.
For EV charging inlets and plug connectors, the compound’s amorphous nylon matrix, 20 wt% glass reinforcement, and flame retardant package are subjected to outdoor weathering, repeated mechanical insertion, and creep on current-carrying contact carriers. The applicable compliance framework includes IEC 62196-1:2022 for plugs and inlets, UL 2251:2022 for North American EV plugs, IEC 60695-2-11:2021 glow wire at 850°C or higher depending on accessible current-carrying parts, and UL 94 V-0 on the finished molded part at the design wall, commonly 1.5–2.0 mm. Since outdoor components may be exposed to UV and moisture condensation, regrind addition is limited to 0 wt% in load-bearing latch housings and contact carriers; in non-structural inner shields, a maximum of 5 wt% clean regrind may be evaluated only after IEC 60068-2-30:2005 damp heat cycling and IEC 60112:2020 CTI confirmation. During damp heat cycling, low molecular weight flame retardant residues can migrate to the sealing face and deposit on copper alloy contact surfaces; therefore parts destined for charging connectors are qualified with contact resistance measurements per IEC 60512-2-1:2002 before type approval. Drying before molding is critical: pellets should be dried at 85°C for 4–6 h to <0.10 wt% moisture and held in a closed hopper at -40°C dew point; failure to maintain this level can hydrolyze the amorphous nylon during plastication and create surface splay, reducing dielectric strength across the terminal carrier. Injection molding on a 150–250 tonne clamp unit with multicavity hot runner should use melt temperatures 265–280°C, mold temperatures 90–110°C to reduce frozen-in orientation, and cycle times controlled to avoid excessive residence time above 300°C because flame retardant decomposition at hot spots can deposit low molecular weight residues on vent surfaces. Terminal finished parts include AC charging plug shells, vehicle inlet sockets, and contact carrier insulators.
In miniature circuit breaker arc chambers and molded-case breaker contact carriers, the interaction between the flame retardant additive system in EnLon F0PX20GF and the ionized gas present during interruption imposes a requirement for low volatile outgassing and high arc resistance. The compound is used at the supplied 20 wt% glass-fiber loading, and the addition of regrind is normally set at 0 wt% for components directly adjacent to the arc stack; any regrind derived from rejected parts that contain carbonized surface contamination or metallic insert debris can create internal defects that shorten tracking time under ASTM D495-14 and reduce dielectric withstand under IEC 60664-1:2020. Molding process engineering for these components must address non-uniform packing around inserted copper or silver-weld contact pins; valve gate sequencing with independent servo-driven nozzles, pack pressure of 70–100 MPa, and mold temperature of 100–120°C are used to produce a frozen skin that minimizes exposed glass fibers on the arc-facing surface. The applicable end-product standards are IEC 60898-1:2015 for household MCBs, IEC 60947-2:2019 for industrial circuit breakers, and UL 489:2023 in North America; ignition resistance is verified via IEC 60695-2-11:2021 glow wire at 960°C when the material functions as a fixed part supporting live conductors. Pre-drying at 85°C for 6 h to <0.10 wt% moisture is required, and hopper residence should not exceed 30 min at 85°C to prevent the flame retardant package from volatilizing before plastication; melt temperature at the nozzle is held at 260–275°C, with screw backpressure limited to 0.5–1.0 MPa to avoid excessive shear heating. Finished products include arc barrier plates, toggle mechanism bases, and contact carrier insulators for AC and DC interruption modules.
The selection of EnLon F0PX20GF for LED driver terminal carriers and lampholder bases is driven less by the raw-material UL 94 V-0 classification than by the end-product glow wire ignition temperature required by IEC 61347-1:2015 and EN 60598-1:2015 for fixed wiring in luminaires. In this use case, the formulation addition ratio is the as-supplied 20 wt% glass loading with 0–10 wt% clean regrind restricted to non-optically visible base plates and terminal barriers; adding regrind beyond this range can shift the glass-fiber orientation distribution and increase surface roughness on sealing faces. Drying is performed in a desiccant dryer at 80°C for 4–6 h to <0.12 wt% moisture, and processing on an injection molding machine with shot capacity at 40–60% of barrel volume reduces hydrolytic degradation during melt residence. Melt temperatures are maintained at 260–280°C, mold temperature at 80–95°C, and injection velocity profiling is used to prevent jetting that produces visible glass fibers on lampholder outer surfaces. The relevant certification path for North America is UL 8750:2015 plus UL 94 V-0 at the minimum formed wall, and IEC 60695-2-11:2021 glow wire testing at 750–850°C is executed on the final assembly rather than on isolated plaques because the metal terminal and PCB can act as heat sinks. Finished parts include LED driver terminal carriers, GU10 lampholder bases, and non-optical driver enclosure lids where dimensional stability after heat aging at 120°C is verified against ISO 527-2:2012 tensile retention.
Comparative tracking index stability in industrial relay bases and programmable logic controller terminal carriers becomes the controlling material criterion when the appliance is installed in humid or lightly polluted environments. For these components, EnLon F0PX20GF is processed at the stated 20 wt% glass-fiber reinforcement; a maximum regrind level of 15 wt% is permitted in non-current-carrying enclosure segments provided that the regrind is sourced from parts free of mold release contamination and that CTI after molding meets the IEC 60112:2020 minimum of 600 V for reinforced insulation. The industrial control end-product framework references UL 508A:2022 for internal wiring enclosures, IEC 61010-1:2010+A1:2019 for measurement and control equipment, and UL 94 V-0 for flame barriers between field wiring and power supply terminals. Production on a multicavity tool with insert molding of brass or copper alloy terminals requires mold temperature 90–105°C, cavity pressure sensors set to hold until the gate freezes, and core back sequential filling to eliminate weld lines at the base of each terminal port. Pre-drying to <0.10 wt% moisture at 85°C for 4 h is required when ambient relative humidity exceeds 60%; melt temperature measured by air shot should remain within 265–285°C, and residence time above 300°C must be limited to fewer than 5 min to prevent flame retardant breakdown that produces plate-out on the mold surface. Finished molded products include relay socket bases, PLC module terminal carriers, and fuse holder bodies for DIN rail industrial control cabinets.
In hand-held and portable power tool construction, the combination of 20 wt% glass reinforcement and flame retardant chemistry in EnLon F0PX20GF is applied to switch trigger bodies, brushless motor control housings, and battery pack terminal retainers. The relevant compliance route is IEC 62841-1:2014 for hand-held motor-operated electric tools, UL 94 V-0 at the thinnest wall of the switch housing, and IEC 60664-1:2020 for clearance and creepage distances; where the material is used as a double-insulated barrier, the dielectric withstand test specified in IEC 62841-1:2014 clause 18 must be performed on the finished assembly because glass-fiber orientation around ribs and bosses can create localized weakness. Formulation ratio for this application is set at 100% virgin compound for switch bodies and battery retainers, with regrind limited to 0 wt% for parts below 1.0 mm wall thickness; this restriction avoids particulate contamination that would lower breakdown voltage under ASTM D149-20. Amine-containing mold releases and processing aids should be excluded from the molding environment because they can react with the flame retardant package at melt temperature and reduce UL 94 V-0 performance. Injection molding parameters require pre-drying at 85°C for 5 h to <0.10 wt% moisture, melt temperatures 260–280°C, mold temperatures 85–100°C, and an injection speed profile with fast initial fill to minimize premature freezing in thin ribs, followed by a controlled pack phase at 50–70 MPa to reduce warpage. Production molding on a 100–180 tonne clamp unit with hot runner valve gates and vent depths of 0.02–0.03 mm along the parting line prevents gas burn marks at the last-filled boss locations. Finished components include brushless motor control module housings, trigger switch bodies, and lithium-ion battery pack terminal retainers.
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Encom Polymers EnLon F0PX20GF is supplied as an amorphous nylon compound with nominal glass-fiber loading of 20% by weight and a flame-retardant package. The F0PX prefix positions the grade in the EnLon nylon portfolio for flame-retardant, dimensionally stable applications; the 20GF suffix identifies the glass-fiber content. Because the matrix is amorphous, the material passes from melt to solid through a glass-transition region rather than through the abrupt crystallization exotherm characteristic of PA66 and PA6. That structural distinction affects shrinkage, warpage, chemical compatibility, and fatigue response. Publicly available product-specific data for this Encom formulation is limited; the class-level values in this document are drawn from published industrial literature for 20% glass-filled flame-retardant amorphous polyamide compounds and should not be treated as guaranteed datasheet specifications.
Semi-crystalline nylon grades develop spherulites during cooling, producing a larger volumetric contraction than an amorphous matrix. Comparable 20% glass-filled amorphous nylon literature values therefore show mold shrinkage generally between 0.2% and 0.5%, while 20% glass-filled PA66 often ranges from 0.4% to 0.9% depending on flow and cross-flow orientation. The lower shrinkage differential reduces warpage in flat molded housings and improves dimensional stability across humidity cycles. The trade-off appears in chemical resistance. Without crystalline regions to hinder solvent penetration, amorphous nylon is more sensitive to polar solvents, alcohol-containing coolants, and organic acids than semi-crystalline PA66 or PA6. In weld-line regions, the lack of crystallization can reduce the sharp strength loss observed in semi-crystalline grades around weld lines, but the glass-fiber network still aligns parallel to the weld plane and lowers weld-factor values. Tensile testing of welded specimens under ISO 527-2:2012 remains necessary for structural parts because published weld-line data for this specific configuration is limited.
Glass reinforcement improves tensile modulus and reduces mold shrinkage, but it lowers elongation at break. Snap-fit features designed for unfilled amorphous nylon should be re-evaluated because 20% glass loading reduces ductility and increases notch sensitivity. The amorphous matrix also eliminates post-mold crystallization shrinkage that can occur in semi-crystalline parts during end-use heating; dimensional changes above the glass-transition temperature are controlled primarily by fiber relaxation and moisture desorption.
Within the 20% glass-filled flame-retardant amorphous nylon class, representative published values include tensile strength at break of 110–150 MPa under ISO 527-2:2012, flexural modulus of 7,500–10,500 MPa under ISO 178:2019, and notched Charpy impact of 6–12 kJ/m² under ISO 179-1:2010. Heat deflection temperature at 1.8 MPa is commonly reported between 130 °C and 180 °C using ISO 75-2:2013 method Af. Specific gravity is generally 1.45–1.55 under ASTM D792-20. These ranges represent class-level performance for similar flame-retardant amorphous nylon compounds with nominal 20% glass reinforcement; they are not product specifications for EnLon F0PX20GF unless confirmed on the supplier datasheet.
| Property | Test method | Class-level range |
|---|---|---|
| Specific gravity | ASTM D792-20 | 1.45–1.55 |
| Tensile strength at break | ISO 527-2:2012 | 110–150 MPa |
| Flexural modulus | ISO 178:2019 | 7,500–10,500 MPa |
| Notched Charpy impact | ISO 179-1:2010 | 6–12 kJ/m² |
| Heat deflection temperature, 1.8 MPa | ISO 75-2:2013 Af | 130–180 °C |
Flammability classification for grades in this segment is normally established under UL 94. Many 20% glass-filled flame-retardant amorphous polyamides are rated V-0 at 1.6 mm, but the specific listing thickness and flame-retardant chemistry of EnLon F0PX20GF should be confirmed from the UL yellow card. Flame-retardant additives can depress comparative tracking index and alter hot-wire ignition behavior; electrical applications therefore require evaluation under IEC 60112 and IEC 60695-2-11 rather than relying on UL 94 alone. Moisture conditioning before testing changes results: data generated at 23 °C / 50% RH under ISO 291 show lower modulus and higher impact than dry-as-molded values. Design comparisons should use conditioned data when parts operate in ambient humidity.
In circuit-breaker covers, contactor bodies, and terminal-block housings below 1.2 mm wall thickness, post-mold distortion from anisotropic crystalline shrinkage is a common rejection mode. Replacing a 20% glass-filled flame-retardant PA66 grade with an amorphous nylon such as EnLon F0PX20GF can reduce flatness deviations and improve alignment of busbar slots, insert positions, and snap-fit latches. The lower and more isotropic shrinkage allows tighter tooling tolerances, but the processing window must be adjusted because no crystallization plateau exists to signal solidification. Pack-pressure profiles should be derived from cavity-pressure transducers or short-shot studies rather than transferred directly from semi-crystalline nylon settings. The material should be qualified only after UL 94 V-0 is confirmed at finished part thickness and after glow-wire end-product tests under IEC 60695-2-11 where required by the applicable appliance or switchgear standard.
Electrical insulative properties for glass-filled flame-retardant amorphous nylon are often reported under ASTM D257 for volume and surface resistivity and ASTM D149 for dielectric strength. Glass fiber and flame-retardant fillers can reduce dielectric strength relative to unfilled amorphous nylon. Comparative tracking index under IEC 60112 is formulation-dependent; halogenated and halogen-free FR packages do not produce identical tracking behavior. Published CTI data for this specific Encom grade is limited, so batch-level certification is advisable for insulation-coordination designs.
Predrying of EnLon F0PX20GF is required to prevent hydrolytic chain scission. A desiccant dryer with a dew point at or below -40 °C and inlet air temperature of 80–100 °C for 4–6 h is typical for glass-filled amorphous nylon. Residual moisture should be below 0.15%; for thin-wall molding below 1.0 mm, control below 0.10% is preferred because moisture vapor creates splay and jetting defects. Melt temperature should be maintained between 260 °C and 290 °C. Residence time above 300 °C should be limited to avoid degradation of the flame-retardant package and polymer backbone; typical maximum melt residence time is 8–10 min. Mold temperature from 70 °C to 110 °C reduces molded-in stress and improves surface finish but extends cycle time. Back pressure should be kept at 0.3–0.7 MPa hydraulic and screw recovery speed moderated to limit glass-fiber attrition. Dead spots should be avoided with positive shutoff screw tips and regular purging because FR additives can accumulate and char, producing intermittent black specks.
Compounding of 20% glass reinforcement into flame-retardant amorphous nylon is typically performed on a co-rotating twin-screw extruder with L/D ratio of 40:1 and a downstream side stuffer. Vacuum devolatilization at approximately -0.08 MPa removes residual moisture and low-molecular-weight volatiles. These parameters are general industrial practice for the compound class and are not a substitute for the Encom Polymers processing datasheet.
Rheological behavior is shear-thinning. Literature values for similar 20% glass-filled flame-retardant amorphous nylon place melt viscosity at 280 °C and 1,000 s⁻¹ between 80 and 180 Pa·s. Excessive gate shear above 100,000 s⁻¹ can produce frictional heating, polymer degradation, and visible streaking; gate size should be balanced against acceptable shear. Spiral-flow length is lower than that of unfilled amorphous nylon, and higher injection pressure or slightly higher melt temperature within the allowable range may be needed for long flow paths.
Compared with 20% glass-filled flame-retardant PBT, EnLon F0PX20GF tends to provide lower mold shrinkage and reduced warpage in flat electrical parts, while PBT offers faster crystallization and lower moisture sensitivity. Compared with 20% glass-filled flame-retardant PA66, the amorphous nylon trades chemical resistance and elevated-temperature creep resistance for lower anisotropic shrinkage and improved dimensional stability. Continuous immersion in hot glycol, concentrated acids, or strong oxidizing media is not recommended. Chemical compatibility should be verified under ASTM D543-21 because the amorphous matrix can stress-crack in aggressive cleaning agents. For repeated steam sterilization or long-term contact with automotive coolants above 80 °C, semi-crystalline polyamide or polyphthalamide grades should be considered instead.
