| HS Code | 539383 |
| Density | 1.23 g/cm³ |
| Water Absorption At Saturation | 1.1% |
| Tensile Modulus | 6500 MPa |
| Tensile Stress At Break | 100 MPa |
| Elongation At Break | 5% |
| Flexural Modulus | 5800 MPa |
| Flexural Stress At 3 5 Strain | 140 MPa |
| Charpy Impact Strength Notched | 8 kJ/m² |
| Charpy Impact Strength Unnotched | 50 kJ/m² |
| Melting Point | 178 °C |
| Heat Deflection Temperature At 1 8 Mpa | 145 °C |
| Vicat Softening Temperature | 165 °C |
As an accredited EMS-Grivory Grilamid LBV-30H FWA black 9225 Nylon 12, 30% Glass Fiber Filled, Conditioned factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packaged in 25 kg sealed moisture-proof bags, conditioned nylon 12 pellets with 30% glass fiber, black 9225. |
| Container Loading (20′ FCL) | A 20′ FCL of Grilamid LBV-30H black Nylon 12, 30% glass fiber, conditioned, loaded as palletized sealed bags for safe transport. |
| Shipping | This product ships as 30% glass-fiber reinforced nylon 12 pellets in sealed, moisture-proof packaging on pallets. To prevent moisture absorption and maintain performance, keep containers closed and store in a cool, dry area. Handle to minimize dust generation. Not classified as dangerous goods for transport. |
| Storage | Store Grilamid LBV-30H FWA black 9225 in its original, tightly sealed container to prevent moisture absorption. Keep in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and UV exposure. Maintain temperatures below 50°C (122°F). Use dry, clean tools when handling. For conditioned material, preserve sealed packaging until processing to maintain specified moisture levels. |
| Shelf Life | Shelf life is indefinite when stored dry, cool, and protected from UV; keep sealed to prevent moisture absorption. |
In gasoline vapour return systems, the component environment includes cyclic hydrocarbon vapours, oxygenated fuel fractions, temperature swings from cold-soak to under-bonnet heat soak, and continuous retention force applied by snap-fit claw geometries. For SAE J2044 quick connectors, LBV-30H FWA black 9225 is processed as a 100% injection moulding compound; clean sprue and runner regrind is reintroduced at levels not exceeding 20% by mass of the total shot because repeated extrusion history reduces glass fibre length and lowers notched impact strength in retainer arms. The compliance envelope includes ISO 16750-4 thermal shock and vibration qualification, SAE J2044 coupling performance testing for insertion and extraction loads, and evaporative emission requirements drawn from CARB and EPA procedures. On all-electric injection moulding machines with clamp force between 800 kN and 1,500 kN and 8–16-cavity valve-gated hot runners, the compound is dried at 80°C for 4–6 h in a desiccant dryer to a residual moisture content below 0.10% by weight. The barrel is profiled from 240°C in the feed zone to 270°C at the nozzle, the tool is held at 60–80°C, and first-stage injection is followed by a packing pressure of 60–80 MPa until gate freeze. Because the 30% glass fibre reinforcement creates anisotropic shrinkage, the gate is positioned to orient flow parallel to the snap-fit arm rather than transverse across the retention barb; transverse fibre orientation at the weld line can reduce weld-line tensile strength by up to 30% relative to the bulk polymer. Terminal artefacts include quick-connect female bodies, male stem retainers, clip rings for fuel sender flanges, carbon canister port adapters, and fuel tank vent valve mounting flanges. The operational boundary is defined by fuel composition: sustained exposure to methanol blends above 10% by volume or aggressive antioxidant-containing biodiesels requires validation for swelling, retainer insertion force retention, and extraction load stability before series release.
Dimensional control after ejection is governed by post-mould moisture uptake and crystallinity development. The conditioned designation indicates that comparative mechanical data are referenced at 50% relative humidity and 23°C under ISO 291; in production, uncontrolled moisture absorption after moulding can shift eyelet roundness and alter push-in retainer engagement. Tools are specified with wear-resistant inserts because glass fibre reinforcement abrades conventional steel at gate and shut-off regions. Laser marking or hot-foil marking is preferred over mechanical engraving to avoid stress concentration at the snap-fit base. Published data for this specific compound in evaporative emission testing is lot-dependent; permeation coefficients should be extracted from supplier data packages for each fuel blend and not extrapolated from generic PA12 homopolymer values.
Pneumatic push-in connectors and distribution manifolds fabricated from the same PA12-GF30 compound operate with dry or lubricated compressed air at working pressures from 0.6 MPa to 1.6 MPa depending on tube diameter and wall thickness. The material is used at 100% virgin moulding compound; where clean runner regrind is added, it is limited to 15% by mass because the collet retention tooth and internal sealing bore are sensitive to fibre breakage and non-uniform glass dispersion. Processability differs from PA6-GF30 in that the narrower melting region of PA12 permits faster cycling but requires a higher tool surface temperature of 70–90°C to develop sufficient crystallinity for bore roundness after demoulding. The barrel profile is set between 250°C and 275°C, with an injection speed of 200–350 mm/s for wall sections of 1.5–3.0 mm; packing pressure is limited to 40–60 MPa to avoid overpacking the thin sealing lip and creating flash at the parting line. Multi-cavity tools with 8–32 cavities are balanced by flow length rather than by artificial restrictor pins, because glass fibre orientation at the gate can create anisotropic shrinkage in the bore; the collet retention tooth is gated tangentially to align fibres around the circumference and reduce radial cracking when the tube is inserted at low temperature. Compliance is drawn from ISO 14743 for push-in couplings intended for thermoplastic tubes, and the finished manifold is tested for pressure drop, leak tightness, and temperature cycling according to the system manufacturer’s specification. Terminal components include swivel unions, elbow connectors, flow control restrictors, multiple-connector manifold blocks, and modular sub-bases for valve islands. The limiting incompatibility is ester-based compressor oil at sustained temperatures above 60°C; long-term exposure can plasticize the PA12 matrix and reduce the retainer lip modulus, causing the fitting to lose tube grip. For that reason, oil mist removal to ISO 8573-1 class 3 or better is assumed in production air supplies.
The FWA designation imposes a different regulatory pathway than automotive or pneumatic components, because glass fibre sizing agents and the black colourant system can migrate into water if the surface layer is not sufficiently crystallised. For food-contact and potable-water articles, the compound is used at 100% virgin moulding compound; in-house regrind is excluded unless the final article has been tested with the specified regrind fraction and the migration value remains below the applicable overall migration limit of 10 mg/dm² under Commission Regulation (EU) 10/2011. National potable-water approvals such as NSF/ANSI/CAN 61 or DVGW W270 are product- and geometry-specific; the material supplier can provide formulation disclosure, but the finished filter head or valve manifold must be exposed to the actual water-contact surface-to-volume ratio during certification. Injection moulding for these components is performed at a melt temperature of 250–275°C, a tool temperature of 70–90°C, and a residual moisture after drying below 0.08% by weight; higher melt temperature can liberate low-molecular-weight amide oligomers that appear as extractable organic carbon in migration testing. The process window is deliberately maintained without external mould release, without silicone grease on ejector pins, and with hot-runner channels purged before production runs to prevent cross-contamination from other PA compounds. Terminal products include filter heads for point-of-entry water systems, bypass valve bodies, branch connectors for reverse osmosis manifolds, carbonator water inlet bodies, and quick-change water filter brackets. The operational boundary is continuous hot-water exposure above 80°C or repeated steam sanitisation above 100°C; both conditions require additional ageing and migration studies because the glass fibres can create microcapillary pathways at the weld line that accelerate extraction. Chlorine exposure at pH above 8 and sustained temperatures above 60°C is another limiting case: the oxidising environment can attack the polyamide matrix and expose glass fibres at the surface, increasing contaminant retention and odour taint. Published data for this specific configuration is limited; every moulded geometry with a new gate location should be re-tested rather than relying on numeric migration values from a plaque.
Outdoor cable glands and junction enclosures made from LBV-30H FWA black 9225 are evaluated first for dimensional stability after moisture conditioning and then for impact retention at low temperature. The formulation ratio is 100% compound for load-bearing threaded components; clean in-house regrind is permitted up to 20% by mass only if the granulate is retained from the same lot and is not contaminated with standard PA6 or PA66. The moulding process uses a melt temperature of 250–275°C, a tool temperature of 80–100°C, and a slow-to-medium injection speed of 80–150 mm/s for thicker walls between 2.0 mm and 5.0 mm; the elevated tool temperature increases crystallisation rate and reduces post-mould shrinkage variation in the thread root. Compliance is anchored to IEC 60529 for IP66/IP68 sealing performance, IEC 60112 for comparative tracking index, UL 94 HB for flammability classification, and ISO 179/1eA for notched Charpy impact at -40°C after conditioning to moisture equilibrium. Terminal products include outdoor cable glands with metric or PG threads, junction box covers with integrated hinge bosses, terminal rail support brackets, sensor housings, and photovoltaic combiner enclosures. The operational incompatibility is prolonged contact with strong acids or alkaline cleaning agents used on electrical infrastructure; such cleaning agents can etch the glass fibre surface and reduce tensile strength in thread flanks. For photovoltaic use, the black colourant system must be confirmed for UV exposure in the intended irradiation band; generic carbon black loadings vary, and UV stabilisation is not a substitute for thermal ageing approval under IEC 60216 if the box interior is expected to exceed 70°C continuously.
Chloride-induced stress cracking is the dominant failure mode in outdoor chemical dosing skids, because the pump housing must retain thread flank stress under bolt torque while exposed to sodium chloride and calcium chloride brines, ethylene glycol, and cyclic freeze-thaw between -30°C and 60°C. The PA12-GF30 compound is processed at 100% virgin grade for pressure-containing walls; if regrind is introduced, it is capped at 25% by mass and must be remelted below 280°C to avoid additional chain scission that accelerates stress cracking. Pre-drying is conducted in a desiccant dryer at 80°C for 4–8 h, with a dew point of -40°C or lower and residual moisture below 0.10%. The barrel is profiled from 245°C to 280°C, and the tool is kept at 80–100°C to maximise crystallinity in thick sections of 3–6 mm. Injection is performed with a profiled screw speed and a multi-stage injection velocity to prevent jetting at the gate; the packing phase is held until gate seal, typically at 50–70 MPa, to suppress voids that act as crack initiation sites. Mechanical compliance is verified under ISO 527-2 for tensile properties, ISO 178 for flexural properties, and ISO 22088-2 or an equivalent strain-hold method for environmental stress cracking in chloride/glycol media. Regulatory compliance is checked against REACH Regulation (EC) 1907/2006 and, where the pump is part of an electrical or electronic assembly, RoHS Directive 2011/65/EU. Terminal products include metering pump housings, gear pump end caps, valve manifold bases, injection lance holders, and dosing panel mounting brackets. The operational boundary is not the glass transition but the chemical environment: continuous immersion in 50% ethylene glycol at 80°C is generally tolerated only after creep rupture testing; strong oxidising chlorine dioxide or sodium hypochlorite solutions above free chlorine levels of 10 mg/L can hydrolytically degrade the surface and should be excluded from continuous contact. Published data for this specific black 9225 grade under all brine compositions is limited; a coupon immersion programme under actual site chemistry is necessary before replacing metal pump bodies in high-pressure lines.
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EMS-Grivory Grilamid LBV-30H FWA black 9225 is a heat-stabilised polyamide 12 injection-moulding compound reinforced with 30% by weight chopped glass fibre. The manufacturer applies the FWA designation to formulations intended for food-contact and drinking-water service, while the suffix 9225 identifies the pre-compounded black pigment package. Mechanical and thermal data are reported in the conditioned state after equilibration at 23°C and 50% relative humidity to ISO 291. Density at 23°C is approximately 1.24 g/cm³ under ISO 1183-1. Water absorption after 24 h immersion at 23°C is approximately 0.15%, and saturation uptake is approximately 1.1% under ISO 62. These values are lower than those commonly observed for glass-reinforced polyamide 6 and polyamide 66 grades.
Conditioned tensile data include a tensile modulus of approximately 6500 MPa, tensile stress at break near 100 MPa, and strain at break near 8% determined according to ISO 527-1/-2 on type 1A specimens. Notched Charpy impact strength at 23°C is approximately 20 kJ/m² using ISO 179/1eA; unnotched Charpy impact strength is approximately 75 kJ/m² using ISO 179/1eU. For parts that remain immersed or exposed to intermittent water contact, the conditioned values are the relevant design basis, not the dry-as-moulded values.
| Property | Dry | Conditioned | Test method |
|---|---|---|---|
| Tensile modulus | 8500 MPa | 6500 MPa | ISO 527-1/-2 |
| Tensile stress at break | 145 MPa | 100 MPa | ISO 527-1/-2 |
| Tensile strain at break | 5% | 8% | ISO 527-1/-2 |
| Charpy notched impact strength, 23°C | 15 kJ/m² | 20 kJ/m² | ISO 179/1eA |
| Charpy unnotched impact strength, 23°C | 70 kJ/m² | 75 kJ/m² | ISO 179/1eU |
| Heat deflection temperature, 1.8 MPa | 160°C | 155°C | ISO 75-1/-2 |
The dry-to-conditioned shift represents a tensile modulus reduction of roughly 23% and a tensile stress-at-break reduction of roughly 31%, while notched Charpy impact increases from 15 kJ/m² to 20 kJ/m². Absorbed water acts as a plasticiser by disrupting intermolecular hydrogen bonds at the amide linkages, increasing chain mobility at the expense of stiffness and strength. This shift is smaller in magnitude than that of PA6 or PA66 glass-fibre compounds because the PA12 backbone carries a lower amide-group density.
Relative to unfilled polyamide 12 grades, the 30% glass reinforcement raises conditioned tensile modulus by roughly a factor of four and raises heat deflection temperature by more than 80°C, but it reduces strain at break from values typically above 50% to approximately 8% and introduces anisotropic shrinkage. Against a 50% glass-reinforced PA12, the 30% grade provides lower melt viscosity, reduced screw and barrel abrasion, and easier filling of thin-wall sections, but lower modulus and heat deflection temperature. Against PA66-GF30, this PA12 grade has lower maximum continuous-use temperature but substantially lower saturated moisture uptake, which reduces hygroscopic swelling of close-tolerance parts in humid water-meter and manifold environments.
For quality-control correlation, glass-fibre content can be verified by ash content to ISO 3451-1, and residual moisture can be determined by ISO 15512. Incoming-material checks on raw pellets should monitor bulk density and moisture because storage in unsealed containers above 60% relative humidity can raise surface moisture within 12–24 h and alter the dry-feeding behaviour at the hopper.
Chemical resistance of the PA12 matrix is adequate for aliphatic hydrocarbons, mineral oils, lubricants, salt solutions, and many neutral aqueous liquids, but strong mineral acids, phenols, cresols, and oxidising media can attack the polymer. Chemical-resistance screening should follow ISO 175 using the end-use concentration and temperature; swelling, tensile retention, and surface changes should be recorded after 7 and 28 days of immersion for critical fluid-contact parts.
The alkylene segment of polyamide 12 is longer than that of polyamide 6 or 66, so the equilibrium concentration of water-binding amide sites is lower. Glass-reinforced polyamide 66 can absorb approximately 6–8% water at saturation, and reinforced polyamide 6 can exceed 8%; the PA12-GF30 value near 1.1% limits the extent of plasticisation. The lower equilibrium moisture content also reduces hygroscopic expansion and differential swelling between the glass fibres and the matrix. Differential swelling is one of the primary mechanisms leading to interface weakening in fibreglass-reinforced nylons exposed to fluctuating humidity, particularly at weld lines and metal-to-plastic seals. In a component such as a water-meter housing or valve body, the PA12-GF30 conditioned modulus of approximately 6500 MPa remains closer to its dry value than the conditioned modulus of many PA66-GF30 compounds relative to their dry values. Design validation using finite-element analysis should therefore use the conditioned secant modulus at 23°C and 50% RH, and a lower value for saturated service if the part is continuously immersed.
Heat deflection temperature under 1.8 MPa is approximately 155°C and under 0.45 MPa approximately 175°C to ISO 75-1/-2. The melting point of the PA12 matrix is approximately 175°C by ISO 11357-3. These thermal values are lower than those of PA66-GF30, so the product is not intended for continuous structural service above approximately 120°C. Low-temperature notched impact behaviour of PA12-GF30 is typically superior to that of PA66-GF30, but published data for the specific black 9225 colour lot at temperatures below -20°C should be obtained before specifying it for outdoor arctic service.
Before melt processing, the pellets should be pre-dried at 80°C for 4–6 h in a desiccant dryer with a dew point no higher than -30°C. Residual moisture above 0.1% can cause splay, silver streaks, and molecular-weight reduction through hydrolysis at melt temperature. The melt temperature should be controlled within 250–280°C, with the highest zone set at the nozzle and the feed throat kept sufficiently cool to prevent bridging. A mould temperature of 40–60°C is typical; increasing the mould temperature toward the upper end can improve surface gloss and crystallinity but increases cycle time. For thin-wall sections below 2 mm, a mould temperature closer to 60°C may be necessary to avoid premature freeze-off.
The fibre-glass reinforcement requires wear-resistant barrel and screw surfaces; nitrided or bimetallic construction is recommended for production volumes. A general-purpose three-zone screw with an L/D ratio of 20–24 and compression ratio of 2.0–2.5 is acceptable, but the screw tip and non-return valve should be inspected at intervals because glass-fibre abrasion can increase backflow and reduce shot weight. Specific cavity pressure for filling thin-wall sections is typically 50–70 MPa, and clamp force is calculated from projected area and that cavity pressure. Hot-runner manifolds should be held at or below 280°C and should be purged during production interruptions longer than 5–10 min to prevent black-speck contamination. Screw peripheral speed should be limited, commonly to 0.1–0.3 m/s, and back pressure kept at 0.3–0.8 MPa to avoid excessive fibre breakage. Regrind additions, if permitted by the approval, should be held at a controlled percentage because repeated melt history can lower fibre length and conditioned tensile modulus; for food-contact and drinking-water components, the applicable certificate may restrict or prohibit regrind use.
Because glass-fibre-filled PA12 exhibits anisotropic shrinkage, tooling should accommodate flow-direction and cross-flow shrinkage differences; mould qualification should measure shrinkage on plaques to ISO 294-4 and compare cavity dimensions after 24 h from demoulding. Core pins and thin bridges in water-meter housings should be designed with sufficient draft and cooled uniformly, since uneven cooling can produce bowing in flat covers and shift the position of boss holes relative to the gate.
Drinking-water distribution components—water-meter housings, valve bodies, manifold connectors, and pump impeller housings—represent a typical application envelope for the FWA designation. The designation supports material selection but does not by itself constitute universal regulatory approval; the moulded component must be tested and listed under the applicable national or regional scheme, for example KTW-BWGL or AS/NZS 4020 where such approvals are required. Acceptance testing for potable-water parts should also verify low migration of organic substances to the applicable national method, such as EN 12873-1 where relevant. Documentation should confirm compliance with RoHS Directive 2011/65/EU and REACH SVHC restrictions for exported components.
The PA12 matrix is used in this sector because it offers low hygroscopic movement at metal-to-plastic seals, resistance to neutral and mildly acidic aqueous media, and lower water-absorption-induced thread relaxation than similarly reinforced PA66. The glass-fibre content reduces thermal expansion and increases pressure-bearing stiffness relative to unfilled PA12, but it creates anisotropic shrinkage and weld-line planes of lower tensile strength at holes and insert bosses. For hydrostatic pressure-containing parts, mould-flow simulation should locate weld lines away from the maximum hoop-stress regions, and a weld-line derating factor should be established on type 1A tensile specimens to ISO 527-2. Hydrostatic pressure testing of water-meter housings is typically conducted to ISO 4064 dimensional and pressure-loss requirements, with a preliminary design safety factor of 2.0–2.5 on short-term burst pressure unless the approval scheme specifies otherwise.
In compressed-air fittings and quick connectors, the same glass-reinforced PA12 can be used for dimensional stability and low moisture regain; however, compressed-air service is outside the drinking-water-specific certification, and pressure-containing parts should be proof-tested with compressed air at a safety factor required by local equipment legislation. Because the PA12 matrix has a melting point of approximately 175°C, compressed-air temperatures above 80°C require conservative allowable stress derating and consideration of oxidative ageing.
Sustained water contact above approximately 60°C, especially in chlorinated water, is an operational boundary that requires specific endurance testing. Published long-term hydrostatic data for this specific grade and colour are limited, so pressure-pipe and fitting validation should follow ISO 9080 methods where applicable, and environmental stress-cracking assessment should use ISO 22088-2 or an equivalent bent-strip test with the target disinfectant concentration. Threaded assemblies made from this compound can maintain tightening torque better than PA66-GF30 in fluctuating humidity because the saturated water uptake near 1.1% produces lower swell-induced washer-seat relaxation. The hydrolysis-stabilised PA12-GF30 system is generally considered suitable for continuous neutral water contact up to 60°C; above that threshold, retention of notched impact and tensile strength should be verified against the end-use pressure cycle and disinfectant concentration.
