| HS Code | 209568 |
| Glass Bead Content | 30% |
| Density | 1.24 g/cm³ |
| Tensile Modulus | 3400 MPa |
| Tensile Stress At Break | 55 MPa |
| Tensile Strain At Break | 10% |
| Flexural Modulus | 3200 MPa |
| Charpy Impact Strength Unnotched | 30 kJ/m² |
| Charpy Impact Strength Notched | 4 kJ/m² |
| Heat Deflection Temperature 1 8 Mpa | 55 °C |
| Melting Point | 178 °C |
| Water Absorption 24h | 0.3% |
| Mold Shrinkage | 0.5-0.7% |
As an accredited EMS-Grivory Grilamid L XE 10987 black 9225 Nylon 12, 30% Glass Bead Filled, Dry factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 25 kg sealed, moisture-proof bags, nitrogen-flushed to preserve dryness, with product label and lot traceability. |
| Container Loading (20′ FCL) | 20' FCL of EMS-Grivory Grilamid L XE 10987 black 9225 nylon 12, 30% glass bead filled, dry, bagged on pallets. |
| Shipping | Ship as dry nylon 12 pellets in sealed moisture-barrier bags or drums, avoiding exposure to humidity to prevent degradation. Use standard freight; no hazardous classification. Protect from crushing, store in cool, dry conditions, and label as "30% Glass Bead Filled, Keep Dry." |
| Storage | Store in a cool, dry, well-ventilated area, preferably in its original, sealed container to prevent moisture absorption. Keep away from direct sunlight, heat sources, and open flames. Avoid exposure to excessive humidity, as Nylon 12 can absorb moisture. Maintain stable temperatures between 20–30°C. Ensure containers are tightly closed when not in use to preserve material integrity. |
| Shelf Life | Shelf life is indefinite when stored dry, cool, and in original sealed packaging, protecting against moisture absorption. |
When fuel-vapour quick couplings are conversion-moulded from EMS-Grivory Grilamid L XE 10987 black 9225, the melt stream is not diluted with unfilled Nylon 12; the dry compound is charged at 100 wt% of the shot mass. Regrind from the same lot’s cold-runner and sprue waste may be reintroduced at ≤15 wt% after inline metal separation, but post-industrial scrap from other fuel-system materials is excluded because a lower glass-bead volume fraction would shift weld-line morphology and permit anisotropic shrinkage in the snap-finger contour. The parts are dried in a desiccant-bed dryer at 80 °C with a dew point of −30 °C or lower until residual moisture is below 0.1 wt%; open storage above 60% relative humidity for more than 2 h requires re-drying before re-introduction to the feed throat. Moulding is performed on a 22:1 L/D three-zone screw with a back-pressure of 6–8 MPa, a melt temperature of 250 °C, and a tool temperature of 80 °C because PA12 crystallisation in thick snap-fit sections controls the post-mould dimensional seal. The gate land is positioned away from the locking leaf to avoid a brittle weld line; valve-gate hot-runner tips are used because cold-runner stringing into the O-ring groove creates a leak-path reject. Coupling bodies are qualified against SAE J2044 for fuel/evaporative quick connectors, and the moulded material is conditioned per ISO 291 and tested by ISO 527-2 for tensile modulus plus ISO 179/1eU for impact. Evaporative emission performance is evaluated at system level under 40 CFR Part 1060 and the platform’s CARB LEV III durable emission protocol; the PA12 grade contributes fuel resistance and low moisture uptake, but system permeation is not a material-only claim. Terminal moulded items include EVAP canister connectors, fuel-rail retainer clips, modular quick-coupling shells, fuel-filter neck inserts, and service-port dust caps.
For compressed-air distribution fittings, moulding is specified around the grade’s glass-bead geometry: spherical filler lowers shrinkage and keeps thread-root dimensions stable after humidity cycling. The addition ratio is 100 wt% supplied dry compound when the fitting will be used in pressure circuits subject to end-user safety review; validated in-house regrind may be added at ≤15 wt% only when the regrind fraction is generated from the same black 9225 batch and dried to 0.08 wt% residual moisture. Extruded or amorphous PA12 film scrap is not introduced because its molecular-weight distribution is not equivalent and it alters melt-mass-flow rate under ISO 1133-1. Production uses an 18:1 L/D screw with a constant-taper check ring, melt temperature 245 °C, and a tool temperature of 85 °C for push-to-connect bodies with collet undercuts. Multi-cavity tools with mechanically sequenced cams demould the internal barb without side-lock; thread cores are rotated rather than pulled after gate freeze to preserve roundness at the outer sealing groove. Compliance is documented under ISO 14743:2004 for push-in fittings for thermoplastic tubes, and compressed-air purity is assessed under ISO 8573-1:2010 because internal bead surface roughness can retain line debris. Dimensional audit after 24 h at 23 °C/50% RH follows ISO 291. Terminal outputs include tube-to-tube push-in unions, banjo manifolds, silencer bodies, throttle-check valve housings, and pilot-valve enclosures.
Electrical enclosure and sensor-body conversions using this black 9225 compound are run on 100% virgin feedstock; reduction of the glass-bead content through unfilled PA12 dilution is prohibited because the enclosure’s flatness after climatic cycling changes disproportionately when the filler level is not held at the compounded value. For internal ribs and electrical stand-offs, in-house regrind from the same grade may be added at ≤20 wt% after closed-loop drying to 0.08 wt% residual moisture, provided the regrind stream is separated from glass-fibre-reinforced materials. Thin-wall sections are moulded at a nominal thickness of 1.2 mm with high injection speed and a melt temperature of 260 °C; the tool is held at 80 °C to allow the bead-rich surface layer to pack uniformly before gate freeze. Venting depth at the end of fill is maintained at 0.02 mm, and outgassing from the black pigment carrier is minimised by not exceeding 270 °C melt temperature. Qualification references UL 746A for polymeric enclosure components, UL 94 HB where the end-use rating is accepted, and IEC 60112 for comparative tracking index when live electrical parts are adjacent. If a V-0 rating at 0.8 mm is required, a separate flame-retardant grade should be selected; this black 9225 grade is not automatically assumed to carry such a classification. Terminal moulded items include analytical sensor housings, ECU connector shells, cable glands, terminal-box inserts, and proximity-sensor bodies.
In clinical-diagnostic fluid handling components, the grade is processed without mould-release additives and without recycled material because leachable surface residues from previous heat history can interfere with reagent stability. The compound is used at 100 wt% virgin; injection sprue regrind is either discarded or segregated for non-analytical parts. Drying at 80 °C for 4–6 h to 0.07 wt% or lower is mandatory, and a dew-point meter downstream of the dryer is used to log the desiccant circuit. The tool is built with conformal cooling around the manifold channel bosses to keep the glass-bead-filled melt frozen at the gate before the packing phase ends. Barrel temperatures from feed to nozzle are maintained at 200/230/245/250 °C; melt temperature above 270 °C is avoided because the black pigment carrier and glass-bead surface coupling can begin to yellow and deposit on cavity sensors. No zinc stearate mould release is allowed in the moulding cell; forced-air robot degating replaces manual sprue cutting to reduce particulate contamination. Compliance for the instrument enclosure is referenced to IEC 61010-1:2010 for laboratory electrical equipment; patient-contact biocompatibility is not covered by a published ISO 10993-1 report for this specific black 9225 grade, and the processor must qualify the moulded article for its particular diagnostic use. Published data for this specific configuration is limited when full-vessel extractable testing is required. Terminal parts include reagent cartridge frames, pipette-tip station housings, microplate transfer arms, fluid-valve manifold covers, and waste-bottle adapters.
Power-tool and consumer-equipment structural frames are moulded from the same glass-bead-filled PA12 where drop impact and dimensional flatness are jointly constrained. Unlike fibre-reinforced PA6, the glass-bead morphology reduces warpage without creating high anisotropy, which permits a uniform snap-fit overmould on battery housings. The addition ratio is 100 wt% prime compound for first-surface components; internal structural ribs may accept ≤25 wt% in-house regrind if the regrind is not contaminated with glass-fibre-reinforced materials from other lines. Drying is controlled to 0.1 wt% residual moisture. Moulding is performed on a 20:1 L/D screw, with melt temperature 255 °C and tool temperature 70–80 °C. The main process conflict is the wall-thickness transition at bosses: PA12 flow fronts carrying glass beads tend to split around ribs and form a low-gloss bead-rich core, so the sprue is enlarged and the fill speed is reduced through the rib transition by 15–20% relative to the main cavity. Impact performance is evaluated by ISO 179/1eU; electrical safety for hand-held power tools is reviewed under IEC 62841-1, and material surface tracking is assessed under IEC 60112 where live parts are adjacent. Terminal mouldings include drill-housing halves, pneumatic nailer magazine frames, battery-receiver frames, rotary-tool front housings, and trigger-handle subassemblies.
In industrial cable management and snap-fit fastening, the grade’s moisture state at injection is the dominant variable controlling locking-tail repeatability after installation. The material is metered at 100 wt% of supplied dry compound; regrind is generally excluded from the locking-adjustment cavity because the melting history shifts the melt viscosity beyond the process window for the ratchet detent. If unavoidable, no more than 10 wt% same-lot regrind is used. Drying is performed in a desiccant dryer with −35 °C dew point and 80 °C air for 6 h; residual moisture is verified below 0.08 wt%. The mould has a cold runner with a flash gate on the cable-tie head rather than on the tail; injection is profiled so that the melt front crosses the pawl feature at low velocity, minimising bead depletion at the detent surface. Holding pressure is maintained until gate freeze, determined by a pressure-decay sensor rather than by timer, because gate freeze time varies with the bead-rich boundary layer. Quality assessment uses ISO 1133-1 melt-mass-flow-rate verification on incoming batches, ISO 1183 density, and ISO 3451-1 glass-bead content where incoming certificates are challenged; mechanical retention is tested under the purchaser’s internal cable-tie specification rather than a single ISO alternative. Regulatory compliance includes RoHS Directive 2011/65/EU Annex II and REACH SVHC screening on the sold black compound. Terminal items include cable ties, bundle clips, snap-fit cable clamps, spiral-wrap retainers, and harness positioning clips.
Competitive EMS-Grivory Grilamid L XE 10987 black 9225 Nylon 12, 30% Glass Bead Filled, Dry 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!
EMS-Grivory Grilamid L XE 10987 black 9225 is a polyamide 12 injection-moulding compound filled with 30% by mass glass beads and supplied in a black colour-coded grade. The L prefix identifies PA12 as the semi-crystalline base polymer, XE 10987 is the formulation identifier, and black 9225 is the colour package designation. The term “Dry” in the product name refers to mechanical and thermal data generated on dry-as-moulded test specimens rather than specimens subjected to accelerated conditioning under ISO 1110:2019. This distinction is critical for design because PA12 absorbs less water than PA6 or PA66, but moisture uptake still produces a measurable shift in stiffness, yield stress, and impact behaviour. At a filler mass fraction of 30%, the approximate glass bead volume fraction is 14–16% based on a bead density of 2.5 g/cm³ and a PA12 matrix density of 1.01 g/cm³. This relatively low volume fraction explains why the grade retains moderate ductility compared with high-aspect-ratio fibre systems.
Specimens classified as dry are conditioned to a low residual moisture content, typically 0.10% by mass or lower, and tested at 23 °C and 50% RH as specified in ISO 291:2008. Conditioned data are generated after exposure to ISO 1110:2019 accelerated moisture uptake. For PA12, the dry-to-conditioned shift is smaller than for PA6 or PA66 because PA12 has a lower amide group concentration, but it is not zero. Absorbed water plasticizes the amorphous regions: tensile modulus decreases while elongation at break and notched impact increase. Design calculations should therefore use dry-as-molded data only when the component is assembled immediately after moulding and remains dry, or when conservative stiffness values are desired. If the service environment is humid, conditioned data are more representative.
| Measurement | Standard | Conditioning or remark |
|---|---|---|
| Density | ISO 1183-1:2019 | Dry specimen at 23 °C |
| Tensile properties | ISO 527-1:2019 / ISO 527-2:2012 | Dry, test speed per datasheet |
| Charpy notched impact | ISO 179-1:2010 | Dry, 23 °C, notch A |
| Heat deflection temperature | ISO 75-1:2020 / ISO 75-2:2013 | Dry, 0.45 MPa and 1.8 MPa |
| Water absorption | ISO 62:2008 | Saturation at 23 °C |
| Mould shrinkage | ISO 294-4:2018 | Plaque 60 mm × 60 mm × 2 mm |
| Melt volume-flow rate | ISO 1133-1:2022 | Temperature and load per datasheet |
Pre-drying is required before melt processing. Incoming pellet moisture should be verified by Karl Fischer titration or a calibrated moisture analyzer; residual moisture above 0.10% by mass can hydrolyse the PA12 backbone at melt temperatures above 270 °C, causing splay, viscosity loss, and reduced weld-line strength. Desiccant drying at 80 °C for 4–8 h to a dew point below -40 °C is a standard starting condition. Injection moulding is carried out on a single-screw reciprocating machine with a three-zone general-purpose screw of L/D 20:1 to 25:1 and a non-return valve sized for the material. A feed-zone profile of 220–235 °C rising to 250–270 °C at the nozzle is typical; melt temperature should be confirmed by needle pyrometer. Mould temperature between 40 °C and 80 °C is used to control crystallinity and post-mould shrinkage; lower mould temperatures may reduce crystallinity and chemical resistance, while higher temperatures extend cycle time. For thin-wall connector bodies with wall stock below 1.0 mm, gate shear rates should be kept below 100,000 s⁻¹ to reduce filler-matrix separation and surface defects.
Thermal data for PA12 grades are commonly reported as heat deflection temperature and Vicat softening temperature. Because PA12 has a melting peak near 175–180 °C, the high-load HDT of a glass-bead-filled PA12 is lower than that of a comparable PA66 grade. The glass bead filler raises HDT above that of unfilled PA12 but does not create a high-temperature structural material. Continuous-use temperatures above 100–120 °C in air require stabilizer verification and application-specific thermal ageing. Vicat softening temperature is measured under ISO 306:2022; the datasheet value should be used because filler loading and testing rate affect the result. Melt volume-flow rate is determined under ISO 1133-1:2022; for PA12 compounds, 275 °C and 5 kg are common test conditions, but the current datasheet takes precedence. Glass beads increase melt viscosity relative to unfilled PA12 but produce less shear heating and pressure consumption than milled glass fibre at the same loading.
Glass beads do not undergo the flow-induced orientation that short glass fibres develop in injection moulding. The resulting shrinkage is more isotropic in the flow and transverse directions, which reduces warpage and flatness deviation in multi-gate or film-gated parts. This filler geometry also affects weld lines. In short-glass-fibre grades, oriented fibres lying parallel to a weld line can act as a local discontinuity; in glass-bead grades, the spherical filler does not bridge the weld line as oriented reinforcement, so the weld-line strength penalty is often lower relative to bulk tensile strength. Weld-line tensile strength should nevertheless be measured on a double-gate plaque under ISO 527-1:2019 rather than inferred from single-gate data. The reduction in anisotropy is achieved at the expense of absolute modulus; spherical beads provide less reinforcement than high-aspect-ratio fibres. Industrial experience with glass-bead-filled PA12 also indicates reduced screw torque compared with glass-fibre grades because spherical beads roll rather than fracture, but barrels, screws, and gates should still be hardened against abrasive wear.
Flat connector housings, bracket clips, sensor mounts, and fluid-system clips are typical usage fields. The PA12 matrix provides low water absorption; measured saturation uptake is generally below 1.5% by mass in 23 °C water under ISO 62:2008, compared with significantly higher values for PA6 and PA66. This lower uptake reduces dimensional growth in humid environments and helps maintain pin-pitch tolerances in electrical connectors. Resistance to automotive fuels, diesel, aliphatic hydrocarbons, greases, and zinc chloride solutions is characteristic of PA12, but specific fluid blends should be tested under ASTM D543-20. Continuous exposure to strong mineral acids, hydrofluoric acid, or hot polar ethylene glycol blends is not recommended unless supported by immersion data for this specific grade.
Datasheet shrinkage values are generated on plaques under ISO 294-4:2018 and cannot replace production-tool measurements. Shrinkage is influenced by gate position, wall thickness, mould temperature, packing pressure, and holding time. Published datasheet shrinkage values for glass-bead-filled PA12 grades commonly fall between 0.8% and 1.2%, with smaller flow-to-transverse differences than glass-fibre analogues. A prototype tool should be sampled over a factorial design that includes melt temperature, mould temperature, pack pressure, and cooling time. Dimensions should be measured after 24 h at 23 °C/50% RH and again after moisture conditioning to separate post-mould crystallization shrinkage from moisture-induced dimensional growth. For parts with tight tolerances, the glass bead filler reduces but does not eliminate post-mould distortion.
Substitution is driven by warpage, surface finish, and weld-line performance rather than by mechanical stiffness. At equivalent filler loading, short-glass-fibre PA12 grades typically provide higher tensile and flexural modulus, while the glass-bead grade provides more uniform shrinkage, lower tool wear, and improved surface appearance. If a load-bearing bending part is converted without increasing wall thickness or adding ribs, deflection will increase unless the modulus is confirmed by ISO 527-1:2019 and ISO 178:2019. For snap-fit features, the glass-bead grade may have higher elongation at break than a highly reinforced fibre grade, but the allowable snap-fit strain must be derived from the stress–strain curve at the lowest service temperature. The absence of oriented fibres also reduces anisotropic post-mould warpage in parts with uneven wall thickness.
| Attribute | 30% glass bead PA12 | 30% short glass fibre PA12 | Assessment basis |
|---|---|---|---|
| Flow/transverse shrinkage anisotropy | Low | High | ISO 294-4:2018 |
| Tensile modulus at dry state | Lower | Higher | ISO 527-1:2019 |
| Notched impact anisotropy | More uniform | Gate/orientation dependent | ISO 179-1:2010 |
| Tool wear | Lower | Higher | Production experience |
| Surface fibre prominence | Absent | Present | Visual inspection |
Compared with unfilled PA12, the 30% glass bead system increases stiffness and reduces the coefficient of linear thermal expansion, but reduces elongation at break and increases density. Unfilled PA12 remains preferable where high deflection, snap-through deformation, or maximum impact ductility is required. Compared with PA6 or PA66 glass-bead grades, the PA12 matrix offers lower water absorption, better dimensional stability in humid service, and improved resistance to hydrophobic fluids, but lower high-temperature strength and often higher material cost. The isotropy advantage is maintained only if the glass bead size distribution is controlled; batch-to-batch differences in bead size can shift melt viscosity and surface finish. Incoming resin should therefore be monitored by melt volume-flow rate under ISO 1133-1:2022 and by filler content via ash determination under ISO 3451-1:2019.
For electrically insulating connector bodies, the carbon black pigmentation associated with black 9225 may reduce surface resistivity. Comparative tracking index should be evaluated under IEC 60112:2020 and surface resistivity under IEC 62631-3-2:2016. Dry-as-molded values are relevant to electrical testing because absorbed moisture increases surface leakage currents; pre-test conditioning should therefore be reported. In pneumatic and industrial systems, the PA12 matrix resists synthetic compressor oils and water-glycol mixtures within limits, but continuous hot-air exposure above 120 °C can oxidize the amorphous phase and reduce impact strength. Compatibility with recycled PA66 containing copper-based heat stabilizers should be avoided because copper ions may accelerate PA12 degradation at high processing temperatures.
