| HS Code | 551612 |
| Density | 1.54 g/cm³ |
| Tensile Modulus Conditioned | 12500 MPa |
| Tensile Stress At Break Conditioned | 155 MPa |
| Tensile Strain At Break Conditioned | 4% |
| Flexural Modulus Conditioned | 11200 MPa |
| Flexural Strength Conditioned | 230 MPa |
| Charpy Impact Notched Conditioned | 14 kJ/m² |
| Charpy Impact Unnotched Conditioned | 80 kJ/m² |
| Melting Point | 178 °C |
| Heat Deflection Temperature 1 80 Mpa | 165 °C |
| Moisture Absorption At Equilibrium 23c 50rh | 0.6% |
| Water Absorption At Saturation | 1.2% |
As an accredited EMS-Grivory Grilamid TRVX-50X9 nat Nylon 12, 50% Glass Fiber Reinforced, Conditioned factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packaged in sealed, moisture-proof 25 kg bags as conditioned natural nylon 12 pellets with 50% glass fiber reinforcement. |
| Container Loading (20′ FCL) | EMS-Grivory Grilamid TRVX-50X9 nat Nylon 12, 50% glass fiber reinforced, conditioned, packed in palletized bags, loaded into a 20′ FCL container. |
| Shipping | EMS-Grivory Grilamid TRVX-50X9 nat is a conditioned Nylon 12 resin with 50% glass fiber reinforcement, supplied as moisture-protected pellets. Ship in sealed, dry containers to prevent water absorption. Avoid exposure to excessive heat or humidity. Non-hazardous per transport regulations, but label with product and lot identification. |
| Storage | Store in a cool, dry area in the original sealed container, away from direct sunlight and heat sources. Keep the resin tightly closed to prevent moisture absorption, which can affect processing. Ideal temperature: below 30°C. Avoid exposure to humidity and condensation. Under these conditions, shelf life is typically 2 years from the manufacturing date. |
| Shelf Life | Store unopened in original packaging, below 30°C, protected from moisture: shelf life is at least 3 years. |
In SAE J2044-conforming automotive fuel quick connector production, the EMS-Grivory Grilamid TRVX-50X9 nat pellet is processed as a 50% by mass glass fiber-reinforced PA12 compound; incineration per ISO 3451-1 confirms the glass content within 49–51 wt%. The conditioned matrix, equilibrated at 23 °C and 50% RH in accordance with ISO 1110, reduces tensile modulus from approximately 14,500 MPa in the dry-molded state to approximately 11,000 MPa after conditioning, while ISO 527-2 elongation at break rises from roughly 2.5% to 4.0%. Pre-drying in a dew-point-controlled desiccant dryer at 80 °C for 4–8 h until residual moisture falls below 0.10 wt% is mandatory; drying above 95 °C for more than 12 h oxidatively discolors the natural grade without improving moldability. Injection molding of connectors with internal retention fingers and seal grooves is run at melt temperatures of 240–265 °C, mold temperatures of 80–100 °C, and packing pressures between 60–80 MPa; tool surfaces are hardened to HRC 52–56 to resist glass-fiber abrasion. The 50 wt% glass loading must not be diluted with unreinforced PA12, and regrind addition from dried runner scrap is capped at 10 wt% for pressure-bearing couplings because higher regrind levels shorten fiber length distribution and reduce ISO 179/1eA Charpy notched impact below the value required for cold-climate pull-off resistance. Terminal components produced under this profile include fuel line quick connectors, EVAP vapor line fittings, fuel pump outlet flanges, and fuel filter end caps. Compliance for these parts is anchored to SAE J2044 for quick-connect coupling function, with supporting material data reported per ISO 527-2, ISO 179/1eA, ISO 294-4, and REACH Regulation EC 1907/2006 Annex XVII; the natural grade is selected where laser marking of lot codes and cavity numbers is required for full traceability.
When zinc die-cast valve bodies are replaced by 50% glass-filled PA12 in compressed air systems, the design must account for anisotropic mold shrinkage and thread creep at elevated air temperatures. The compound is injected with a melt temperature of 235–255 °C and a mold temperature of 70–95 °C, using sequential valve gating to position weld lines away from the spool bore and exhaust port seals. Glass content is fixed at 50 wt% per ISO 3451-1; the pellet must not be blended with unreinforced PA12 because the resulting non-linear drop in tensile modulus invalidates ISO 14743 push-in fitting pull-out calculations. Regrind addition from clean sprue and runner stock is limited to 15 wt% for non-pressure-retaining covers, but for bodies with G 1/8 to G 1/2 threaded ports per ISO 228-1 the regrind content is capped at 10 wt%; above this level, fiber attrition in the check ring reduces weld-line burst resistance and machined thread insertion torque becomes unstable. The downstream process involves pre-drying at 80 °C to below 0.10 wt% moisture, followed by injection molding with a clamping force of 6–8 kN/cm² of projected area and a screw back pressure of 2–5 bar to maintain homogeneous glass dispersion. After molding, parts are annealed at 90–110 °C for 2–4 h in air to normalize residual stress before port threading or ultrasonic welding. Terminal part types include ISO 5599 size 1 and size 2 pneumatic valve bodies, manifold base plates, cylinder end caps, and compressed air pressure switch housings. Compliance is established under ISO 4414 for pneumatic system safety and ISO 14743 for push-in fittings; because PA12-GF50 is not inherently flame retardant, UL 94 classification is limited to HB, and installations in machinery requiring fire-resistant enclosures must use additional metallic barriers or select a flame-retardant grade.
Creep rupture and electrical tracking in low-voltage sensor carriers are controlled by the 50 wt% glass reinforcement in the material. The compound is processed at a melt temperature of 230–250 °C and a mold temperature of 60–90 °C; injection speed is set in the upper third of the machine range to promote glass fiber orientation along the carrier ribs, but the resulting flow-transverse shrinkage remains 0.5–0.7% per ISO 294-4, requiring tool compensation for differential shrinkage. The formulation addition ratio is the as-supplied 50% by mass glass fiber; no down-blending with impact-modified or unreinforced PA12 is allowed because the comparative tracking index and creep modulus change in a non-linear manner. Regrind use is prohibited for optical sensor alignment features and limited to ≤5 wt% for non-critical wire routing covers. Moisture control prior to molding is <0.10 wt%; parts exposed to condensation or washdown must be dried before assembly to prevent post-mold growth of more than 0.1% on long dimensions. Terminal products include inductive sensor housings, connector bodies for fieldbus distribution boxes, current transducer frames, and actuator feedback sensor carriers. Electrical compliance is derived from IEC 60664-1 insulation coordination; the material’s flammability is assessed under IEC 60695-2-11 glow-wire testing, but the natural grade has no V-0 classification, so it is limited to applications where UL 94 HB or glow-wire ignition does not trigger safety-critical failure. Dimensional stability under continuous clamp load is characterized by ISO 899-1 creep testing; at 23 °C and 50% RH, the 50% glass reinforcement maintains tensile creep modulus above approximately 8,000 MPa at 1,000 h, which is the design reference for terminal screw torque retention.
In professional angle grinder and cordless drill motor housing development, 50% glass-fiber reinforced PA12 is introduced where ordinary glass-filled PA6 grades do not consistently survive repeated cold drops after moisture conditioning. The as-molded housing is produced with pre-dried pellets at ≤0.10 wt% moisture, a melt temperature of 245–270 °C, and a mold temperature of 80–110 °C; higher mold temperatures are held at the upper limit to reduce frozen-in orientation at weld lines around the motor bearing seat. The 50 wt% glass content per ISO 3451-1 is not modified by in-hopper mixing; regrind from degating and reject housings may be added up to 20 wt%, but only when the regrind fraction is re-dried and screened to exclude fines below 0.5 mm. The downstream production process uses injection molding machines with clamp force rated at 7–10 kN/cm² of projected area, abrasion-resistant screws with L/D 20:1–25:1, and hardened nozzles with 2 mm minimum free-flow diameter to avoid glass-fiber plugging. Drop testing is carried out per EN 62841-1 for hand-held motor-operated electric tools, with repeated impacts at -30 °C used to qualify weld-line integrity. Terminal product types include angle grinder gear housings, brushless drill motor housings, battery pack frames, and demolition hammer side handles. Compliance standards include EN 62841-1 and legacy IEC 60745 requirements, with material impact values reported per ISO 527-2 and ISO 179/1eA. The operational boundary is that unpigmented natural grade shows UV embrittlement during outdoor use; black or UV-stabilized versions are required for jobsite equipment stored outdoors longer than six months.
Continuous sliding contact against induction-hardened steel guide rails in high-speed packaging machinery requires a material with predictable wear and low stick-slip tendency. The material is injection molded as 50 wt% glass-reinforced PA12 with melt temperature of 235–260 °C and mold temperature of 70–95 °C; post-mold annealing at 95 °C for 3 h in nitrogen or dehumidified air reduces residual stress in thick cam followers before final CNC machining of bores and sliding faces. The glass addition ratio remains 50% by mass; regrind is limited to 15 wt% from dry runner scrap, and any regrind above 10% requires a 3% reduction in packing pressure to reduce jetting at the gate. The downstream process includes annual maintenance inspection with surface roughness measurement; if Ra exceeds 0.8 µm on the wear face, replacement is scheduled. Terminal products include cam followers, chain guide rails, star wheel components, and linear bearing retainers. Compliance for mechanical performance is based on ASTM D3702 for wear rate and coefficient of friction under thrust-washer testing, with conditioning per ISO 291 prior to tribological evaluation; published wear-rate data for this specific formulation under ASTM D3702 is limited to parameter studies, so application-specific tribological tests are required before production release.
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Among the high-modulus polyamide 12 grades, EMS-Grivory Grilamid TRVX-50X9 nat is a 50% glass-fibre-reinforced nylon 12 compound supplied in natural colour. The term “conditioned” refers to specimens brought to equilibrium under ISO 291 atmosphere of 23°C and 50% relative humidity, or accelerated in accordance with ISO 1110 where permitted by the datasheet. The material is classified chemically as a PA12-GF50 system; the glass-fibre fraction is dispersed in a polyamide 12 matrix that provides lower amide-group density than PA6 or PA66. This combination lowers equilibrium moisture uptake while raising tensile modulus, creep resistance, and dimensional stability relative to unreinforced or lower-glass PA12 grades.
Published EMS-Grivory documentation for dry-as-moulded specimens indicates a density of approximately 1.44 g/cm³ under ISO 1183. Tensile property data from ISO 527-1/-2 show the expected modulus elevation from the glass-fibre fraction; dry tensile modulus is commonly reported in the 14,000–15,000 MPa band, with conditioned specimens retaining roughly 70–75% of that value. Because glass fibre dominates fracture strain, the conditioned elongation at break remains low, typically below 5%. These values are composition-dependent and should be verified against the specific production batch certificate, particularly for natural unpigmented material where fibre sizing may differ from black or custom-coloured variants.
| Property | Standard | Unit | Dry | Conditioned |
|---|---|---|---|---|
| Density | ISO 1183 | g/cm³ | 1.44 | 1.44 |
| Tensile modulus | ISO 527-1/-2 | MPa | 14,500 | 10,000 |
| Tensile stress at break | ISO 527-1/-2 | MPa | 200 | 140 |
| Tensile elongation at break | ISO 527-1/-2 | % | 2.9 | 3.8 |
| Charpy notched impact strength | ISO 179/1eA | kJ/m² | 20 | 30 |
These values are representative of the EMS-Grivory PA12-GF50 product class; lot-specific certificates must be used for production tolerances and part qualification.
Water absorption in the amorphous phase depresses the glass transition of the PA12 matrix and reduces the load transfer contribution of the polymer phase. The dry tensile modulus is therefore higher than the conditioned value, while the notched Charpy impact strength increases after conditioning because the matrix can undergo greater local plastic deformation before crack propagation. Under ISO 179-1/1eA test conditions with a 2 mm notched specimen, the conditioned value is typically displaced upward by 5–10 kJ/m², although the exact shift depends on water content, fibre orientation, and gate geometry. Design calculations for parts exposed to 50% RH indoor service should use conditioned data; dry values apply only to fully dry or low-RH environments.
The material requires pre-drying to a residual moisture content below 0.1% by weight, determined by Karl Fischer titration or loss-in-weight moisture analysis. A dehumidifying hopper dryer with a dew point of -30°C or lower, set at 80–100°C, is typical; drying time depends on initial moisture content, typically 4–8 h for sealed bags opened longer than 24 h. Melt temperature at the nozzle should be held between 250°C and 280°C; brief excursions to 290°C may be acceptable but increase thermal degradation risk. Mould temperature should be controlled between 80°C and 100°C to achieve adequate crystallisation and fibre wetting.
Injection speed uses a medium-to-high profile, because the 50% glass-fibre fraction raises viscosity and can cause premature freeze at the gate in thin-wall sections. A gate diameter or thickness of at least 50–60% of the nominal wall thickness, with a residence time not exceeding 10 min, is recommended. On production lines, glass fibres are abrasive; bimetallic barrels, hardened screw flights, and wear-resistant check rings reduce the screw/barrel wear observed during high-volume moulding. Compounding of 50 wt% glass fibre into PA12 is conventionally executed on co-rotating twin-screw extruders with L/D ratios in the 32:1 to 44:1 range, using downstream glass roving or side-feeding at a point past the polymer melt seal to limit fibre breakage.
Operationally, the PA12 backbone provides lower amide-group density than PA6 or PA66, which reduces the equilibrium water uptake that drives hydrolysis and dimensional change in hot, humid environments. The compound generally resists aliphatic hydrocarbons, mineral oils, diesel fuel, zinc chloride solutions, and many glycol-based coolants; however, concentrated strong acids, phenols, and methanol can attack the polyamide matrix, and stress-cracking may occur at high mechanical load. No amine-based stabilisers or strong Lewis-acid additives should be incorporated unless specifically validated, because glass-fibre sizing can be destabilised and premature matrix degradation may occur.
Compared with PA66-GF50, TRVX-50X9 nat has lower apparent density, lower melt temperature, and lower moisture uptake because PA12 contains fewer amide groups per unit chain length. The trade-off appears in the thermal resistance envelope: PA66-GF50 and PPA-GF50 grades typically exhibit higher heat deflection temperature under ISO 75-1/-2 at 1.80 MPa, but require higher mould temperatures and may display greater dimensional growth when exposed to high humidity. For this reason, the product is selected less for maximum continuous service temperature and more for dimensional stability, low water uptake, and chemical resistance in structural components with specified tolerances. Within the Grilamid portfolio, the TRVX designation differentiates this grade by combining macroscopic reinforcement with a targeted viscosity profile; EMS technical literature should be consulted for the exact additive package because natural-lot variants may differ from black or custom-coloured versions.
Dimensional stability in glass-reinforced PA12 is controlled by both the low water absorption of the matrix and the anisotropic fibre orientation. The coefficient of linear thermal expansion in the flow direction is typically lower than in the transverse direction; published values for PA12-GF50 in the flow direction fall in the 20–30 × 10⁻⁶ K⁻¹ band under ISO 11359-1/-2. The corresponding moisture-induced linear expansion is reduced compared with PA6-GF50 and PA66-GF50 because equilibrium water uptake at 23°C/50% RH is significantly lower. Parts moulded with strong gate freeze-off and uniform packing pressure show less post-mould shrinkage anisotropy than unreinforced or short-glass grades with lower fibre content. Processors should nevertheless measure the actual mould-shrinkage ratio on the intended mould geometry, since fibre length distribution and injection speed alter the orientation tensor.
Approved component classes include automotive compressed-air system components, pneumatic valve bodies, pump housings, cable glands, electrical connector insulators, and structural brackets exposed to mineral oil or diesel mist. In compressed-air and pneumatic systems, the glass fibre resists internal pressure while PA12 limits moisture uptake that would otherwise degrade dimensional tolerances under cycling. The conditioned test state is particularly relevant because the component operates in an environment with finite relative humidity rather than dry nitrogen.
For electrical housings and connector bodies, glass-filled PA12 grades are typically assessed by volume resistivity under IEC 62631-3-1, surface resistivity, and comparative tracking index under IEC 60112. Published values for TRVX-50X9 nat should confirm volume resistivity above 1 × 10¹³ Ω·m and surface resistivity above 1 × 10¹² Ω; these are typical for clean, dry moulded surfaces and should not be extrapolated to contaminated or condensation-covered components. Flammability classification is generally HB under UL 94, but a flame-retarded version is required for any application requiring V-0 performance. Halogen-free or phosphinate-based flame retardants may be selected only after mechanical property verification, as glass-fibre wetting and impact strength can be affected.
Production-scale equipment behaviour with TRVX-50X9 nat is dominated less by chemical constraints than by rheological boundary conditions: glass-fibre breakage during screw recovery reduces final modulus, while moisture entrainment causes hydrolysis and surface streaking. Screw geometry should use a low-to-medium compression ratio and a non-return valve with hardened or ceramic wear surfaces to limit fibre degradation. Clamp force requirements are determined by the projected area and the high effective cavity pressure; for thin-wall housings with projected areas above 150 cm², mould-filling analysis should verify that the clamp force remains below the machine limit. The material is not recommended for immersion in boiling water or for continuous exposure to superheated steam without chemical compatibility testing, because polyamide 12 undergoes slow hydrolysis at temperatures above 80°C in pressurised water.
