| HS Code | 266504 |
| Density | 1.48 g/cm³ |
| Water Absorption 24h | 0.30% |
| Tensile Modulus Conditioned | 11500 MPa |
| Tensile Strength Conditioned | 140 MPa |
| Elongation At Break Conditioned | 2.5% |
| Flexural Modulus Conditioned | 10500 MPa |
| Flexural Strength Conditioned | 160 MPa |
| Charpy Notched Impact Strength Conditioned | 8 kJ/m² |
| Heat Deflection Temperature 1 80 Mpa | 160 °C |
| Melting Point | 178 °C |
| Vicat Softening Temperature B50 | 170 °C |
As an accredited EMS-Grivory Grilamid LBV-50H FWA black 9225 Nylon 12, 50% Glass Fiber Filled, Conditioned factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packed in 25 kg moisture-proof sealed bags, palletized and stretch-wrapped to preserve conditioned nylon 12 glass-filled pellets. |
| Container Loading (20′ FCL) | 20′ FCL loaded with EMS-Grivory Grilamid LBV-50H FWA black 9225, 50% glass-filled nylon 12, conditioned. |
| Shipping | Grilamid LBV-50H FWA black 9225 ships as conditioned nylon 12 pellets in sealed, moisture-proof bags to preserve properties. Standard ground freight is suitable; avoid extreme heat and prolonged UV exposure. Keep dry, store upright, and protect from impact to prevent bag damage during transit. |
| Storage | Store in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and ignition sources. Keep the original container tightly sealed to prevent moisture absorption, as nylon 12 can degrade with humidity. Avoid contact with water and extreme temperatures. Proper storage preserves material performance; recommended shelf life is typically two years. |
| Shelf Life | Shelf life is typically 2 years from shipment when stored in original sealed packaging, in a cool, dry place. |
Grilamid LBV-50H FWA black 9225 is a polyamide 12 injection-moulding compound reinforced with 50% glass fibre by weight and supplied in a conditioned state. The fixed glass-fibre loading is 50 wt%; downstream compounding, additional fibre addition, or carrier-resin letdown is not specified for finished-part production. Pre-drying to less than 0.10 wt% residual moisture is mandatory before melt processing, with moisture content determined by ISO 15512 or an equivalent drying-loss balance. Moisture conditioning at 50% RH after moulding is used for dimensional stabilisation, but conditioned material still requires pre-drying before melt processing because the equilibrium moisture content of polyamide 12 is not a dry feedstock condition. The FWA designation identifies the formulation as suitable for food- and water-contact certification, but the finished article, not the raw pellet, carries final regulatory approval. The following application scenarios are restricted to actual downstream contexts in which creep resistance, hydrolytic stability, low water absorption, and dimensional flatness under moisture loading are controlling engineering requirements.
In cold-water and intermittent hot-water distribution manifolds, the 50% glass-fibre loading provides creep resistance under hydrostatic pressure cycling, but the glass-fibre orientation at knit lines must be controlled to avoid premature stress cracking in pressure-boundary walls. The fixed formulation ratio for this sector is 50 wt% glass fibre in polyamide 12, and pressure-boundary cavities are filled with 100 wt% virgin compound; sprues and cold-runner regrind may be re-introduced at a maximum of 25 wt% if the reclaim stream is dried, dedusted, and verified by ISO 1133-1:2022 MVR testing to fall within ±15% of the virgin lot value. Compliance for terminal components installed in North American point-of-entry systems is evaluated under NSF/ANSI/CAN 61, with lead-free verification under NSF/ANSI 372; in Germany, KTW-BWGL and DVGW W270 apply to non-metallic materials in contact with drinking water, while the UK market requires WRAS product approval. Injection moulding is performed on hydraulic or servo-electric machines with 120–180 t clamp force for multi-cavity filter-housing tools, barrel temperature profile 240–270 °C, nozzle 260 °C, mould surface 80–100 °C, and packing pressure 50–80 MPa. Terminal product types include reverse-osmosis membrane housings, point-of-use carbon-block filter heads, water-softener bypass valve bodies, and multi-port distribution blocks for PEX transition fittings.
Commercial espresso machine group-head carriers and side frames are produced from this compound because the 50% glass-fibre reinforcement suppresses cold-flow creep at continuous steam exposure of 120–140 °C on metal contact surfaces. The downstream formulation ratio is fixed at 50 wt% glass fibre and 50 wt% polyamide 12; when regrind from sprue and runner systems is used, it is limited to ≤ 20 wt% because glass-fibre length attrition in the reclaimed material shifts the fibre-length distribution and increases warpage variance measured after steam conditioning at 90% RH. Compliance for plastic parts intended for repeated contact with aqueous food simulants follows EU Regulation (EU) No 10/2011 as amended by (EU) 2020/1245, with overall migration determined by EN 1186-1 and specific migration of nylon 12 monomer and oligomers measured by EN 13130-1; US market components are covered under FDA 21 CFR 177.1500 for nylon resins, subject to end-use condition-of-use letters assigned to the finished appliance. Production uses multi-cavity hot-runner tools with valve-gate sequencing on 180–250 t injection-moulding machines, mould temperature held at 100–120 °C to promote crystallinity and reduce post-moulding shrinkage; cooling time is set by wall-thickness geometry and in-cavity pressure-sensor readings, not by average part ejection temperature alone. Terminal product types include group-head mounting plates, steam-valve housings, boiler end-cap supports, and drip-tray structural frames.
When closed-loop pressure boosters operate with low suction-side NPSH margins and glycol-water heat-transfer fluids at 60% glycol concentration, impeller creep resistance is governed by hydrolytic stability of polyamide 12 rather than by dry tensile modulus alone. The relevant material compliance for pump components installed in European pressure equipment is the Pressure Equipment Directive 2014/68/EU category assessment, with material traceability to EN 10204 type 3.1 certificates and hydraulic acceptance under ISO 9906:2012; water-contact approvals for domestic swimming pool circulation parts fall under ACS or WRAS, depending on the target region. The feedstock ratio is 100 wt% virgin compound for high-speed impellers, and no secondary glass-fibre addition is performed; regrind is confined to ≤15 wt% and only from hot-runner drops, because cold-runner reclaim contains glass-fibre bundles that shift rotor imbalance and reduce fatigue life under 3,500 rpm continuous operation. Moulding is carried out with a screw L/D ratio of 20:1–25:1, compression ratio 2.0–2.5:1, and non-return ring clearance checked at 0.05 mm maximum to prevent fibre-induced wear. Terminal product types include multi-stage pressure-booster impellers, diffuser plates, motor end caps, and swirl-chamber separators for domestic and light-commercial pump modules.
Pneumatic manifolds and valve-island sub-bases require flat sealing faces that do not bow after repeated exposure to compressed-air condensate and trace oil mist. The applicable material and product standards include ISO 14743:2004 for pneumatic fluid power push-in fittings, ISO 8573-1:2010 for compressed-air purity classes, and ISO 178 flexural testing for batch acceptance of glass-fibre-reinforced polymer; if the manifold is installed in a European machinery assembly, conformity to Directive 2006/42/EC is evaluated at the machine level, not at the resin level. The compound is fed at 100 wt% virgin material for first-tier manifold bodies; the fixed glass-fibre content remains 50 wt%, and cold-runner regrind can be added up to 30 wt% only when injection-unit back pressure is maintained at 2–5 MPa and screw speed is limited to 80–100 min⁻¹ to avoid excessive fibre breakage. Production of a 6-station manifold with 300 mm flow path is typically run on a 160–220 t all-electric machine with a two-stage injection profile: first-stage velocity 20–40 mm/s through the gate, second-stage 5–10 mm/s during glass-fibre orientation freeze. Terminal product types include ISO valve-island sub-bases, FRL filter-regulator housings, cylinder end caps, and push-in fitting lock sleeves.
Compliance checklist matrix for the application sectors covered above:
| Application sector | Standard or method | Controlling measurement | Typical acceptance criterion |
| Potable water manifolds | NSF/ANSI/CAN 61, NSF/ANSI 372, KTW-BWGL, DVGW W270, WRAS | Pressurized water extraction, microbial growth potential, lead content | No extractive exceedance of health-effects criteria; lead content below applicable threshold |
| Food-contact structural frames | EU Regulation (EU) No 10/2011, EN 1186-1, FDA 21 CFR 177.1500 | Overall migration in food simulants, specific migration of nylon 12 monomers | Overall migration <10 mg/dm²; condition-of-use compliance for final appliance |
| Pump impellers and diffusers | 2014/68/EU, EN 10204 type 3.1, ISO 9906:2012 | Hydraulic acceptance, material traceability | Pump performance class per project specification; material certificate traceable to batch |
| Pneumatic manifolds | ISO 14743:2004, ISO 8573-1:2010, ISO 178 | Sealing-surface flatness, flexural strength, leak rate | Flatness within 0.1 mm per 100 mm; no visible surface blister or fibre bloom |
Process-side conveying and filling equipment uses this compound where stainless steel components create excessive mass or where dry lubricant films are undesirable in dry food environments. Food-contact compliance is assessed under FDA 21 CFR 177.1500 for the polyamide 12 base resin, with glass-fibre reinforcement cleared separately under applicable food-contact substance provisions, and under EU Regulation (EU) No 10/2011; for conveyor components that contact non-fatty dry goods, test conditions follow EN 1186-1 with food simulant E and EN 13130-1 for specific migration analysis. The formulation ratio is fixed at 50 wt% glass fibre in polyamide 12; reworked material from the same production process is limited to 20 wt% and is not used on direct food-contact surfaces unless migration testing on the finished article is re-performed under the relevant food-contact regulation. Injection moulding of long rails uses sequential valve gates with mould temperature 80–100 °C and hot-runner manifold temperatures maintained below 270 °C to prevent nylon 12 degradation; extruded or machined prototype routes are not recommended because glass-fibre orientation at the surface influences wear rate and migration behaviour. Terminal product types include star-wheel pockets, guide-rail brackets, scraper-retaining jaws, and quick-release clamp bodies for food conveyors.
Battery thermal management subsystems using 50/50 water-glycol coolants at 70–80 °C place simultaneous demands on hydrolytic stability, dimensional flatness, and low extractable ion content. Material compliance for non-food chemical contact is verified through coolant immersion testing to VW TL 774 or ASTM D1384 corrosion-in-glassware protocols, while flame-retardance requirements, when applicable, are evaluated under UL 94 at the specified thickness; because the grade contains 50% glass fibre, weld-line regions must be screened by ISO 179-1/1eA Charpy impact at 23 °C and −30 °C. The supplied compound is used at 100 wt% for leak-tight couplers; no additive concentrate is introduced at the press, and regrind use is not recommended for moulded-in sealing ribs because glass-fibre length reduction in recycled material lowers elongation at break measured per ISO 527-1/-2. Production uses vertical or horizontal injection machines with clamp force 100–150 t for small couplers, melt temperature 250–270 °C, mould temperature 90–120 °C, and hold pressure 40–60 MPa; after demoulding, sealing-rib flatness is checked with optical profilometry and the part is conditioned at 50% RH before dimensional audit. Terminal product types include coolant inlet/outlet couplers, degas bottle adapters, sensor brackets, and manifold retainer plates for battery cooling circuits.
Production-floor processing parameters are consolidated below; residuals are verified by ISO 15512 or equivalent drying-loss balance.
| Application sector | Pre-drying | Residual moisture target | Melt temperature | Mould temperature | Maximum regrind |
| Potable water manifolds | Desiccant dryer 80 °C for 4–6 h | <0.10 wt% | 240–270 °C | 80–100 °C | 25 wt% |
| Espresso machine frames | Dew-point −30 °C hopper dryer at 80 °C | <0.10 wt% | 240–270 °C | 100–120 °C | 20 wt% |
| Pump impellers | Vacuum-assisted drying for 6 h at 80 °C | <0.10 wt% | 240–270 °C | 80–100 °C | 15 wt% |
| Pneumatic manifolds | Desiccant dryer 4–8 h if ambient RH > 60% | <0.10 wt% | 240–270 °C | 80–100 °C | 30 wt% |
| Food-contact wear rails | Hooded hopper dryer with dry air at 80 °C | <0.10 wt% | 240–270 °C | 80–100 °C | 20 wt% |
| Battery cooling couplers | Desiccant dryer 80 °C for 4–6 h | <0.10 wt% | 250–270 °C | 90–120 °C | Not recommended |
Reciprocating metering pump bodies and chemical dosing heads in municipal water-treatment skids are produced from this compound to replace metal where phosphate and chlorine-based disinfectant solutions create galvanic corrosion. Chemical compatibility is verified by immersion testing in 10% sodium hypochlorite and 2% orthophosphate solutions for 500 h at 40 °C, with tensile retention measured per ISO 527-1/-2; drinking-water contact compliance for the components follows NSF/ANSI/CAN 61, and for European installations, Directive (EU) 2020/2184 sets the framework for materials in contact with drinking water while national acceptance such as UBA or KTW-BWGL controls final approval. The glass-fibre addition is already fixed at 50 wt%; downstream addition of lubricants or process aids is avoided, and cold-runner regrind is limited to 10 wt% because metering chamber dimensional tolerance of ±0.02 mm demands the narrowest possible fibre-length distribution. Processing uses a single-cavity or two-cavity mould with conformal cooling channels to maintain mean mould temperature 95 °C ± 5 °C; screw back pressure is set to 3–6 MPa and cushion is held at 2–4 mm to stabilise melt density. Terminal product types include diaphragm pump heads, piston guides, chemical dosing valve caps, and flow-conditioning static mixer bodies.
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EMS-Grivory Grilamid LBV-50H FWA black 9225 is a heat-stabilised, 50% glass-fibre-reinforced polyamide 12 injection-moulding compound. The grade is supplied as black cylindrical granules and is formulated for dimensionally stable structural components requiring low moisture uptake. The term “conditioned” refers to specimens equilibrated at 23 °C and 50% relative humidity in accordance with ISO 1110 or an equivalent accelerated moisture protocol. In the conditioned state, the PA12 matrix absorbs limited moisture because the polymer backbone contains fewer amide groups per unit chain length than PA6 or PA66; this reduces the magnitude of moisture-induced property change. The FWA suffix indicates that the grade is positioned within the manufacturer’s framework for food- and water-contact applications, while black 9225 identifies the colourant formulation. Final article compliance must be verified against the relevant positive lists and migration limits for the target market.
| Property | Test standard | Dry | Conditioned |
|---|---|---|---|
| Density | ISO 1183-1 | 1.56–1.58 g/cm³ | — |
| Tensile modulus, 1 mm/min | ISO 527-2/1A | 15,000–15,500 MPa | 12,500–13,000 MPa |
| Tensile stress at break, 5 mm/min | ISO 527-2/1A | 175–185 MPa | 140–150 MPa |
| Elongation at break, 5 mm/min | ISO 527-2/1A | 3.0–4.0% | 4.0–5.0% |
| Charpy notched impact strength, 23 °C | ISO 179-1/1eA | 14–18 kJ/m² | 18–22 kJ/m² |
| Charpy unnotched impact strength, 23 °C | ISO 179-1/1eU | 70–80 kJ/m² | 75–85 kJ/m² |
| Heat deflection temperature, 1.8 MPa | ISO 75-1/-2 | 165–175 °C | — |
| Melting point | ISO 11357-3 | 175–180 °C | — |
| Water absorption, saturation, 23 °C | ISO 62 | 0.8–1.0% | — |
In the dry-as-moulded state, tensile modulus is approximately 15,000–15,500 MPa. Conditioning reduces modulus to 12,500–13,000 MPa, a decrease of roughly 15%. Tensile stress at break follows the same trend, declining from 175–185 MPa dry to 140–150 MPa conditioned, while elongation at break increases from 3.0–4.0% to 4.0–5.0%. This shift reflects plasticisation of the amorphous phase rather than degradation of the glass-fibre reinforcement. The notched Charpy impact strength rises from 14–18 kJ/m² dry to 18–22 kJ/m² conditioned, indicating that some ductile fracture character remains despite the high filler loading. Heat deflection temperature under 1.8 MPa load is reported between 165 °C and 175 °C, which supports intermittently heated underhood environments but not continuous exposure above this range without further validation.
At 50% glass-fibre mass fraction, tensile modulus increases by approximately one order of magnitude relative to unreinforced PA12. Unreinforced PA12 typically exhibits a dry tensile modulus of 1,400–1,600 MPa; the reinforced grade reaches the 15,000 MPa class. The reinforcement also reduces linear mould shrinkage from unreinforced PA12 values near 0.7–1.0% to 0.1–0.4%, depending on fibre orientation and gate location. This shrinkage reduction is anisotropic because glass fibres restrict flow-direction contraction more than transverse contraction. Tooling must account for differential shrinkage measured according to ISO 294-4, particularly in flat covers and housing flanges where warpage is governed by orientation gradients.
Compared with a 50% glass-fibre-reinforced PA66, the PA12 matrix exhibits lower equilibrium moisture uptake because of the reduced density of amide linkages. The practical result is less dimensional change and a smaller drop in tensile modulus between dry and conditioned states. A 50% glass-reinforced semi-aromatic polyphthalamide may provide higher heat distortion temperature, often above 250 °C, but requires melt temperatures in the 320–350 °C range and can place greater demands on barrel wear and recovery. LBV-50H processes at a melt temperature of 250–280 °C, closer to conventional PA6/PA66 equipment settings. The selection trade-off is therefore continuous service temperature against moisture stability and processability.
In chemical stress-cracking resistance, PA12 generally outperforms PA66 in zinc chloride and calcium chloride road-salt solutions, which is relevant for underhood connectors, sensor housings and exposed fluid-handling brackets. However, at continuous operating temperatures above 150 °C, semi-aromatic PPA grades are usually preferred because PA12 loses stiffness and oxidative stability more rapidly. Published data for this specific black 9225 formulation is limited for full quantitative comparison across all temperatures and chemical environments; validation on moulded parts remains necessary for critical load-bearing applications.
The grade must be dried before moulding. In a desiccant dryer at 80 °C for 4–8 h, residual moisture should be reduced to 0.10% or less. Wet granulate can produce splay, silver streaks and weak weld lines because steam hydrolyses the PA12 melt and reduces molecular weight. A closed hopper or dry-air conveyor is recommended when ambient relative humidity exceeds 60%. Melt temperature at the nozzle should be maintained between 250 °C and 280 °C. At mould temperatures of 80–120 °C, crystallisation proceeds sufficiently to stabilise dimensions and reduce post-mould warpage. When mould temperature falls below 70 °C, the surface resin skin freezes before packing is complete; observable consequences include visible glass fibre at the surface, lower gloss and reduced weld-line strength.
On production-scale moulding lines with a 25 mm diameter, 22:1 L/D general-purpose screw and shot size near 50% of barrel capacity, screw speeds of 80–120 min⁻¹ and hydraulic back pressure of 5–15 bar typically produce uniform fibre dispersion without excessive fibre attrition. Because the 50% glass reinforcement is abrasive, sustained campaigns require bimetallic barrels, nitrided screw tips and wear-resistant check-ring assemblies. Higher back pressure or screw speed increases barrel and screw wear while reducing fibre length; this can lower impact resistance and increase warpage anisotropy.
| Parameter | Recommended condition |
|---|---|
| Predrying temperature | 80 °C |
| Predrying time | 4–8 h in desiccant dryer to 0.10% residual moisture |
| Melt temperature | 250–280 °C |
| Mould temperature | 80–120 °C |
| Screw configuration | 20:1–25:1 L/D general-purpose or low-shear screw |
| Maximum residence time | 10 min at melt temperature |
| Hot runner nozzle temperature | 250–270 °C |
| Mould shrinkage, flow direction | 0.1–0.2% per ISO 294-4 |
| Mould shrinkage, transverse direction | 0.3–0.4% per ISO 294-4 |
Gate placement should align glass-fibre orientation with the primary load path. Edge gates or fan gates with a thickness of 1.5–2.5 mm and a land length of 0.5–1.0 mm reduce jetting and improve surface formation. Hot runner drops should be sized to minimise residence time and purged with unreinforced PA12 before shutdown. When processing interruptions exceed 10 min at melt temperature, the melt should be purged promptly because prolonged residence can cause discolouration and a drop in impact performance. Mould cooling should be arranged to extract heat uniformly along the flow path; asymmetric cooling amplifies the anisotropic shrinkage and can push flat covers outside dimensional tolerance.
The FWA suffix is associated with food- and drinking-water suitability in the EMS product line, but compliance is formulation-, colourant- and condition-specific. For European Union applications, the final article must be assessed under EU Regulation 10/2011 and EU Regulation 2023/2006 for good manufacturing practice, with migration testing performed on the finished part. For United States applications, polyamide 12 may fall under FDA 21 CFR 177.1500 for nylon resins; glass fibre and carbon black must comply with applicable colorant and filler provisions. Drinking-water components require specific approval to NSF/ANSI 61, KTW-BWGL, WRAS or the relevant national scheme. The black 9225 formulation can alter migration behaviour compared with natural or white versions; published data for this specific configuration is limited with respect to high-temperature water contact above 80 °C.
Chemically, concentrated mineral acids, strong oxidising agents and polar solvents at elevated temperature attack the PA12 matrix. The grade should not be specified for continuous exposure to methanol, high-concentration ethylene glycol mixtures beyond the limits defined by the coolant system manufacturer, or chlorinated hydrocarbons without compatibility testing. For hot-water systems, long-term pressure cycling and chlorine dioxide exposure should be validated on moulded parts rather than extrapolated from resin data.
Structural pump housings, valve bodies, filter heads and sensor brackets are typical applications where the combination of 50% glass reinforcement and conditioned PA12 moisture resistance is exploited. In these components, dimensional stability after humid exposure, low creep under metal fastener compression, and resistance to road salt and automotive fluids are primary design inputs. Parts moulded in black 9225 are visually opaque, which suits underhood and water-handling assemblies where laser marking or pad printing is required.
