| HS Code | 871884 |
| Material | PA12-GF30 |
| Density | 1.24 g/cm³ |
| Glass Fiber Content | 30 % |
| Tensile Modulus | 9500 MPa |
| Tensile Strength At Break | 140 MPa |
| Elongation At Break | 3 % |
| Charpy Impact Strength Unnotched | 70 kJ/m² |
| Charpy Impact Strength Notched | 10 kJ/m² |
| Heat Deflection Temperature 1 80 Mpa | 150 °C |
| Melting Temperature | 178 °C |
As an accredited EMS-Grivory Grilamid® LBV-30H FWA black 9225 PA12-GF30 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | EMS-Grivory Grilamid LBV-30H FWA black 9225 PA12-GF30 is supplied as granules in sealed 25 kg bags, ready for processing. |
| Container Loading (20′ FCL) | 20′ FCL: Palletized bags of Grilamid LBV-30H FWA black 9225 PA12-GF30, shrink-wrapped and secured for safe transport. |
| Shipping | Grilamid LBV-30H FWA black 9225 is a glass-fiber-reinforced PA12 granulate. Ship in sealed, moisture-proof containers to prevent water absorption. Protect from direct sunlight, high temperatures and mechanical damage. Handle with care to avoid dust generation. Standard dry cargo transport is suitable; no special hazard classification required. |
| Storage | Store in original sealed packaging in a cool, dry, well-ventilated area, away from direct sunlight and heat sources. Keep containers tightly closed to prevent moisture absorption, which can affect processing. Avoid exposure to rain, condensation, or excessive humidity. Protect from mechanical damage and contamination. Follow manufacturer’s shelf-life recommendations for optimal performance. |
| Shelf Life | Store in a cool, dry place away from direct sunlight. Shelf life is generally 2 years from delivery date. |
Grilamid LBV-30H FWA black 9225 is processed in closed-loop potable water distribution components at the as-sold 30 wt% short-glass-fibre loading, with downstream converters commonly limiting post-mould regrind reincorporation to 15 wt% in bodies that must retain long-term hydrostatic creep resistance under ISO 9080 extrapolation protocols. The pre-moulding drying step uses a desiccant dryer with a dew point of −30 °C or lower; the granulate is held at 80 °C for 4–8 h until residual moisture, measured by ISO 15512 method A, is below 0.08 %. Melt temperature is controlled between 235 °C and 250 °C at the nozzle, the mould surface is held between 70 °C and 90 °C, and hydraulic hold pressure is profile-set at 50–70 MPa to maintain gate sealing over a screw diameter of 35–50 mm. Moulds for valve bodies, union nuts, and distribution manifold segments require hardened cavities of 52 HRC or harder because the 30 wt% glass reinforcement produces abrasive wear at parting-line and gate areas; gating is normally direct sprue or edge gate with a land length of 0.8–1.2 mm. Compliance for finished articles in potable water service is assessed under NSF/ANSI 61, AS/NZS 4020, or national transpositions of EC 10/2011 for food-contact plastics, while the base polyamide 12 polymer falls under FDA 21 CFR 177.1500. Terminal components include cold and hot water valve bodies, threaded couplers, backflow-preventer housings, and modular distribution manifolds installed in residential and commercial plumbing systems.
Thermostatic mixing valves in sanitary applications expose the compound to continuous water contact at 70–95 °C and require dimensional stability under differential thermal expansion between the glass-filled PA12 body and brass or stainless steel thread inserts. The 30 wt% glass content reduces dry-as-moulded shrinkage to 0.20–0.35 % in flow direction and 0.35–0.55 % transverse, but the lower linear thermal expansion coefficient of the reinforcement still creates anisotropic stress during cooling from the mould temperature through the glass transition of the PA12 matrix. Converters therefore anneal the moulded parts for 2–4 h at 110–120 °C in air-circulating ovens after ejection, a step that raises the heat deflection temperature measured under ISO 75-1/-2 method A to a stable 160–165 °C for the dry-moulded condition. The process window for the injection step remains narrow: barrel temperatures above 260 °C oxidise the heat-stabiliser package and accelerate surface gloss change in black 9225, while melt temperatures below 225 °C cause flow hesitation and glass-fibre orientation defects behind the valve spool seats. Compliance documentation for potable water approvals such as KTW-BWGL, WRAS, and ACS is maintained only when the finished component is tested as assembled; the FWA designation is referenced by EMS for drinking-water and food-contact grade screening, but final article certification remains country-specific. Terminal products include thermostatic cartridges, mixer housings, flow-control spools, and concealed valve bodies used in shower and basin installations.
In compressed-air push-to-connect fittings, the material is selected for a balance of hoop stiffness and resistance to compressor oil aerosols, ozone, and condensed water in industrial circuits operating at 8–16 bar. The 30 wt% glass-fibre reinforcement raises the dry tensile modulus to approximately 5,500 MPa under ISO 527-1/-2, which allows a standard metric port body to resist elliptical deformation when a hardened stainless-steel grip ring is pressed into a tapered bore. The wall thickness around the collet groove is held between 2.0 mm and 3.0 mm to prevent glass-fibre breakout at the sealing land; injection is run with a fast fill speed of 80–120 mm/s screw-forward velocity and a short hold time of 4–6 s to prevent overpacking the thin collar. Mould temperature is set at 60–80 °C rather than the upper PA12 range to reduce cycle time for high-volume production. Thread features are specified as M5, G1/8, G1/4, and G1/2 according to ISO 228-1, and the finished couplings are validated under ISO 14743 for leak-tightness, vacuum resistance, and pull-out force at 23 °C and 80 °C. No regrind is used in the sealing lip region, and only 10 wt% certified regrind is allowed in the non-functional base sections. Terminal products include push-in connectors, modular manifold blocks, silencer bodies, and cylinder end covers.
| Target market | Component form | Primary test / standard | Representative acceptance criterion |
|---|---|---|---|
| Potable water distribution | Valve bodies, union nuts | NSF/ANSI 61, ISO 9080 | Leachate evaluation per NSF/ANSI 61; long-term hydrostatic strength extrapolated per ISO 9080 |
| Food-contact beverage equipment | Pump housings, filter bowls | EC 10/2011, FDA 21 CFR 177.1500 | Overall migration < 10 mg/dm² in 3 wt% acetic acid for 2 h at 70 °C |
| Industrial pneumatic | Push-in connectors | ISO 14743, ISO 228-1 | Leak-tightness from −0.95 bar vacuum to 16 bar working pressure at 23 °C and 80 °C |
Water meter bodies and impeller spindles produced from Grilamid LBV-30H FWA black 9225 operate in continuous immersion at 10–50 °C, but utility networks occasionally introduce glycol-based freeze-protection agents or descaling solutions that alter the moisture equilibrium of the PA12 matrix. The 30 wt% glass loading restricts water absorption at saturation to approximately 1.0–1.2 % by mass under ISO 62, compared with 1.5–1.9 % for unreinforced PA12, and this reduction keeps impeller-to-chamber clearance within a 0.10–0.15 mm band required for OIML R49 Class C metering tolerance across a 5–50 °C temperature range. Moulding is performed with a melt temperature of 240–250 °C and a screw back pressure of 2–4 bar to maintain fibre length distribution in the melt, because excessive back pressure raises glass-fibre breakage and lowers the cyclic flexural strength retention measured in repeated loading at 2 Hz after static flexural modulus verification under ISO 178. The tooling for impeller hubs uses three-plate cold-runner gating with six point gates equally spaced around the hub to minimise radial weld lines; weld-line tensile strength is retained at approximately 60–70 % of the unwelded reference. Compliance for utility metering bodies is assessed under the Metrological Directive 2014/32/EU for legal metrology and under ISO 4064 for water meter type approval, while material contact requirements are cross-checked against national potable-water lists. Terminal products include single-jet meter bodies, multi-jet impeller hubs, register covers, and electronic meter housing shells.
Pump bodies, flow-meter chambers, filter heads, and hot-water manifolds in commercial espresso equipment and beverage dispensers are exposed to daily sanitisation cycles at 85–95 °C using 2–3 wt% sodium bicarbonate or citric acid solutions, a condition that can preferentially extract low-molecular-weight polyamide oligomers from the surface of glass-reinforced grades. Grilamid LBV-30H FWA black 9225 is specified for this environment with a pre-production migration test under EC 10/2011 using 3 wt% acetic acid simulant for 2 h at 70 °C, followed by ethyl alcohol 10 vol% simulant at 60 °C for 2 h; overall migration is required to remain below 10 mg/dm². The glass fibres at the moulded surface are encapsulated by selecting a high mould temperature of 85–90 °C and a fast fill of 100–150 mm/s, which creates a resin-rich skin of 20–50 µm thickness on the flow path. Suppliers machine the parts with carbide-tipped tools at 1,200–1,800 rpm and 0.3–0.5 mm/rev feed, because post-mould cutting exposes glass fibres at thread starts and O-ring grooves. Terminal products include hot-water pump housings, solenoid valve bodies, filter bowls, and steam-valve spools manufactured under food-equipment design criteria in which elastomer seal contact, not the PA12 body, is the limiting migration source. Finished components are also assessed for repeated sanitisation stress-cracking under ISO 22088-2 using a strain of 1.0 % in a 1 wt% citric acid solution at 80 °C for 24 h.
For automotive fuel vapour and crankcase ventilation connectors, the primary requirement shifts from aqueous extraction to permeation and thermal cycling resistance under engine-compartment conditions. Grilamid LBV-30H FWA black 9225 is used in connectors where the 30 wt% glass fibre content provides creep resistance at 120–140 °C continuous air temperature and short-term excursions to 160 °C, but published data for this specific configuration is limited to supplier testing rather than public literature. The components are injection moulded with a melt temperature of 245–255 °C and a mould temperature of 80–90 °C, and the tools are designed with tunnel gates into non-mating surfaces to avoid gate vestige on quick-connector seal areas. Dimensional validation follows SAE J2044 for male/female quick-connector interchangeability, while thermal ageing is evaluated under ISO 188 at 150 °C for 1,000 h with tensile strength retention above 70 % as the usual acceptance reference. Moisture-conditioned parts equilibrated at 50 % relative humidity are used for final dimensional checks because the PA12 matrix expands sufficiently to alter snap-fit insertion force by 10–20 % compared with dry-as-moulded values. Terminal products include fuel vapour vent fittings, crankcase ventilation tubes, evaporative emission connectors, and turbocharger bypass actuator brackets.
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EMS-Grivory Grilamid® LBV-30H FWA black 9225 is classified as a heat-stabilised, 30% glass-fibre-reinforced polyamide 12 injection moulding grade under the ISO 1043 designation PA12-GF30. The product is supplied as black 9225 granules with an FWA designation that positions it within the food- and water-contact portion of the EMS-Grivory polyamide 12 portfolio. The long-chain aliphatic polyamide 12 backbone provides a lower equilibrium moisture uptake than PA6 and PA66, while the 30% by mass glass-fibre reinforcement raises tensile modulus and reduces cold flow under sustained load. The grade is specified where structural loads, dimensional stability in humid air, and resistance to fuels, oils, or neutral water are evaluated simultaneously. It is commonly considered for drinking-water manifolds, valve bodies, pump housings, flow-meter bodies, automotive fuel-circuit brackets, and industrial quick-connectors. Lot-specific values for mechanical and thermal properties must be verified against current raw material certificates and the applicable ISO methods.
The FWA marking in the LBV-30H series differentiates the material from general-purpose glass-fibre PA12 grades by restricting the stabiliser and pigment package to formulations suitable for food-contact and potable-water evaluations. The black 9225 colour code identifies the colour concentrate and colorant chemistry used in compounding; it is not merely a visual identifier, because the colorant package influences ultraviolet ageing and can alter melt viscosity at high shear rates. Processing data published for the class indicate that the material is intended for injection moulding and extrusion where screw shear and residence time are controlled. Published mechanical values for this exact colour designation are limited outside the producer’s technical literature; therefore final design allowables should be derived from ISO-conformant lot testing.
The glass-fibre network dominates the dry stress–strain behaviour. Typical dry tensile modulus under ISO 527-2 is 6500 MPa, while conditioned modulus at 23°C and 50% RH is approximately 5000 MPa. Dry tensile strength at break is approximately 100 MPa, falling to 65 MPa after moisture conditioning. Dry elongation at break is approximately 4% and increases to 6% in the conditioned state. Charpy notched impact strength according to ISO 179/1eA is approximately 12 kJ/m² dry and 20 kJ/m² conditioned. The heat deflection temperature under 1.8 MPa load, method ISO 75-2/A, is approximately 165°C for dry mouldings. The density determined by ISO 1183 is 1.25 g/cm³. These values are class-typical for heat-stabilised PA12-GF30; lot-specific datasheet values may differ by several percentage points.
In tensile loading at room temperature, the fibre network suppresses the ductile yielding observed in unfilled PA12. Fracture occurs through a combination of fibre pull-out, fibre fracture, and local matrix shear yielding at fibre ends. The dry modulus-to-density ratio is higher than that of an unfilled PA12, but lower than that of many PA66-GF30 grades. The conditioned modulus loss is driven by water absorption at the fibre-matrix interface and in the polyamide phase, not by fibre degradation. Because the glass fibres are anisotropic, orientation from injection flow causes straight-line shrinkage differences between the flow and transverse directions; this must be addressed in gate placement for flat covers and valve bodies.
Before melt processing, the granules are dried in a desiccant dryer to a residual moisture target below 0.10%. At ambient relative humidity above 60%, drying at 80°C for 4–8 h is typical; a dew point below -30°C is recommended to keep the moisture regain below the target. Melt temperatures between 230°C and 270°C and mould temperatures between 40°C and 60°C are suitable for injection moulding. Mould temperatures below 40°C reduce surface gloss and increase frozen-in orientation; above 60°C the cycle time increases and the part may stick to the core.
In production-scale injection moulding, a general-purpose screw with an L/D ratio of 20:1 to 25:1 and a compression ratio of 2.0:1 to 3.0:1 is used. A low-compression general-purpose screw may not provide sufficient dispersive mixing for colour and stabiliser distribution; an aggressive high-compression screw can break fibres and reduce the average fibre length, lowering impact resistance. Screw recovery time is longer than for unfilled PA12 because the glass-fibre-filled melt exhibits higher apparent viscosity at low shear rates. Hot runner systems should avoid dead spots and small thermal gates that can raise local melt temperature above 270°C. At temperatures above 270°C, residence time should be kept below 5 min; extended residence produces oxidative degradation, surface silver streaks, and a measurable loss of notched impact strength.
For extrusion compounding of the base resin with glass fibre, twin-screw extruders with L/D ratios near 40:1 and atmospheric or vacuum devolatilisation are used to remove volatiles and control fibre length. Fibre addition downstream of the melting zone preserves fibre length; adding fibre at the main feed port increases fibre breakage and reduces tensile strength. The product is normally delivered in pellet form, but rework of dried regrind should not exceed 20% by mass unless lot-specific validation demonstrates retention of the required mechanical properties.
PA12-GF30 absorbs less water than PA6-GF30 or PA66-GF30. Saturation water uptake according to ISO 62 is approximately 1.5% for the class, compared with approximately 8–9% for PA6-GF30 and 7–8% for PA66-GF30. The lower uptake reduces the magnitude of hydrolysis-induced modulus loss and dimensional changes in humid air and water contact. However, the glass-fibre interface creates a path for moisture ingress at exposed fibre ends. In applications where cut fibres are present on the part surface, localised moisture penetration can lower the interfacial shear strength and produce a slightly softer surface layer.
The material is resistant to many aliphatic hydrocarbons, diesel fuel, lubricating oils, greases, and neutral salts at ambient temperature. It is not recommended for concentrated strong acids, strong oxidising agents, or hot chlorinated water above 60°C without part-specific evaluation. Polyamides, including PA12, are susceptible to stress cracking in hot aqueous chloride salts and in zinc chloride solutions; components under residual tensile stress should not be exposed to such media without stress-crack resistance testing. Alcohol resistance is better than for some short-chain polyamides, but prolonged exposure to hot methanol or ethanol can plasticise the surface and reduce dimensional stability. The heat stabiliser package in the 30H grade retards oxidative embrittlement during short-term thermal spikes, but it does not eliminate the need to assess long-term hot-air ageing at the use temperature.
The FWA designation indicates that the stabiliser and pigment package is selected for food-contact and drinking-water evaluations. The base polyamide 12 resin may be assessed under European Union Regulation 10/2011 for plastic materials intended to come into contact with food, and under FDA 21 CFR 177.1500 for nylon resins used in repeated food-contact applications. Overall migration testing is normally conducted on the finished article because the surface-to-volume ratio and processing history influence the result. For drinking-water components, NSF/ANSI 51 or WRAS approval is article-specific; the FWA designation alone does not certify every moulded component. The black 9225 colorant package is formulated to avoid regulated heavy-metal pigments at concentrations that would exceed applicable limits. However, the final part supplier must verify that the complete formulation, including re-grind and any masterbatch, remains within the relevant positive lists.
| Requirement | Standard or Regulation | Application Note |
|---|---|---|
| Food-contact plastics | Regulation (EU) No 10/2011 | Overall migration limit for the final article is typically 10 mg/dm². |
| US FDA nylon resins | FDA 21 CFR 177.1500 | Covers nylon resins for repeated contact subject to end-use limitations. |
| Potable water contact | NSF/ANSI 51 or WRAS | Finished-component certification is required; the FWA designation is a candidate-level indicator. |
| Restricted substances | Directive 2011/65/EU (RoHS) | Lead, mercury, cadmium, hexavalent chromium, and selected phthalates are controlled. |
| REACH SVHC | Regulation (EC) No 1907/2006 | Article-level SVHC declaration is required when the concentration exceeds 0.1% w/w. |
Black 9225 is a carbon-black-containing colour formulation. Carbon black acts as an ultraviolet absorber and improves the retention of surface properties in outdoor weathering compared with natural or lightly pigmented PA12-GF30. The pigment also affects melt rheology; small increases in masterbatch content can reduce melt flow and increase screw torque. For parts that require laser marking, the black colour can provide sufficient contrast to a light marking system, but marking parameters must be validated on the textured surface because glass fibres alter surface ablation behaviour. The colour package is normally selected to comply with food- and water-contact requirements; replacing the masterbatch with an unapproved black concentrate negates the FWA-related regulatory positioning of the grade.
Relative to unfilled PA12, the 30% glass-fibre grade increases dry tensile modulus by a factor of approximately 4 and increases tensile strength approximately 2-fold, while dry elongation falls from above 50% to approximately 4%. The glass-fibre addition also reduces the coefficient of linear thermal expansion and raises the heat deflection temperature, making the material more suitable for metal replacement in brackets and housings. However, the glass fibres introduce anisotropic shrinkage, lower weld-line strength, and higher machine wear compared with unfilled PA12.
Compared with PA6-GF30, the PA12 base provides lower density, lower water absorption, and better retention of dimensions in humid air. PA6-GF30 may offer higher dry tensile strength and higher dry heat resistance in some formulations, but its moisture-induced modulus loss is larger. Compared with PA66-GF30, the PA12 grade has lower density and lower melt processing temperature, but PA66-GF30 generally exhibits higher dry heat deflection temperature. PA66-GF30 also absorbs more water and suffers greater dimensional change in humid conditions. Compared with semi-aromatic polyphthalamide glass-fibre grades, the PA12-GF30 material may have lower dry heat resistance and lower specific stiffness, but it is typically easier to mould and less prone to network embrittlement in hot humid environments.
Within the EMS-Grivory LBV range, the 30H glass-fibre content occupies an intermediate stiffness-to-impact position. A 20% glass-fibre grade provides higher elongation and better weld-line integrity; a 40% glass-fibre grade can provide higher tensile modulus and lower creep but at the cost of reduced notched impact and increased screw and barrel wear. The FWA designation separates this grade from alternative heat-stabilised PA12-GF30 products that may use a different stabiliser package or colour system. For applications requiring dry-as-moulded high modulus and lower moisture absorption, the selection of LBV-30H FWA black 9225 is driven primarily by the combination of PA12 chemistry, 30% glass content, heat stabilisation, and regulatory-friendly colour package.
In humid air at 23°C and 50% RH, PA12-GF30 moisture absorption is slower and lower than that of PA6-GF30. Equilibrium moisture uptake under these conditions is approximately 0.5% for the PA12-GF30 class. The resulting dimensional change is smaller than for PA6-GF30 or PA66-GF30, making the PA12 grade suitable for precision housings that must maintain flatness and hole-to-hole distance in changing ambient humidity. Post-moulding shrinkage continues as moisture is absorbed and as the polymer approaches its crystalline equilibrium. This means that dimensional acceptance checks should be performed after conditioning or with correction factors derived from ISO 294-4 shrinkage measurements, not immediately after demoulding.
Three failure modes are observed in production-scale injection moulding of PA12-GF30 components. First, gate blush appears when the fibre content is not properly wetted or when the gate is too restrictive; the defect is visible as a dull, rough surface around the gate and is aggravated by melt temperatures below 240°C. Second, weld lines in glass-fibre-filled PA12 can retain only 60–70% of the bulk tensile strength, and the failure mode is brittle because the fibres do not cross the weld plane. Weld-line performance is improved by higher melt temperature, higher mould temperature, and overflow wells, but the presence of weld lines should be minimised in load-bearing designs. Third, surface streaking and silver marks appear when residual moisture exceeds 0.10% or when the material is degraded in the barrel; both effects are avoided by strict dryer control and limited hot-runner residence.
The upper processing boundary at 270°C is set by the onset of thermal degradation in the heat-stabilised PA12 matrix. The lower boundary at 230°C is set by incomplete fibre wetting and high melt viscosity. Operating outside this band does not produce a uniform property shift; it produces local defect populations that are difficult to detect until impact testing or water-pressure testing is performed. For this reason, lot acceptance should include notched Charpy impact testing according to ISO 179/1eA and tensile modulus according to ISO 527-2, in addition to the visual criteria of the moulded component.
