| HS Code | 834003 |
| Material | EMS-Grivory Grilamid L 20 HL black 9563 |
| Material Type | Nylon 12 (PA12) |
| Condition | Dry |
| Density | 1.01 g/cm³ |
| Melting Point | 178 °C |
| Tensile Strength | 60 MPa |
| Tensile Modulus | 1500 MPa |
| Elongation At Break | 200% |
| Flexural Modulus | 1500 MPa |
| Charpy Notched Impact Strength 23 C | 20 kJ/m² |
| Heat Deflection Temperature 1 80 Mpa | 55 °C |
| Water Absorption 24h 23 C | 0.3% |
As an accredited EMS-Grivory Grilamid L 20 HL black 9563 Nylon 12, Dry factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 kg sealed bags, moisture-protected, dry nylon 12 pellets, ready for processing. |
| Container Loading (20′ FCL) | 20′ FCL loading: EMS-Grivory Grilamid L 20 HL black 9563 Nylon 12 (dry) in bags on pallets, secured. |
| Shipping | Ship EMS-Grivory Grilamid L 20 HL black 9563 as non-hazardous nylon 12 granules. Pack in sealed moisture-barrier bags or drums to prevent humidity absorption. Keep dry, avoid prolonged exposure to heat or UV, and label clearly. Standard freight handling applies; no special dangerous-goods restrictions required. |
| Storage | Store Grilamid L 20 HL in its original, tightly sealed container in a cool, dry environment, ideally below 30°C. Protect from moisture, direct sunlight, and heat sources. After opening, reseal immediately to prevent water absorption. Under these conditions, shelf life is typically two years. |
| Shelf Life | Shelf life is typically 2 years when stored unopened in original packaging, in a cool, dry place away from direct sunlight. |
In automotive fuel-system connector production, the dry granulate of Grilamid L 20 HL black 9563 polyamide 12 is metered from a desiccant dryer into all-electric injection molding cells producing snap-fit fuel-line connectors and engine-bay harness clips. Compliance for this segment is anchored to SAE J2044 for quick-connect liquid-fuel couplings, SAE J2260 for nonmetallic fuel-system components, ASTM D638-14 for tensile property verification, and ASTM D543 for chemical immersion evaluation in zinc chloride road de-icing solutions. The formulation ratio is 100 wt% virgin resin for primary quick-connector bodies, retention collets, and fuel rail clips; clean sprue and runner regrind is limited to 15 wt% only in non-safety harness retainers and is never re-introduced into pressure-bearing or safety-critical snap-fit parts because repeated thermal history shifts elongation and notched impact scatter from cavity to cavity. Downstream processing uses a 24:1 L/D three-zone screw with a reverse check ring, hot-runner valve gates, a melt-temperature window of 235–250°C, and a tool temperature of 60–80°C. Pre-drying at 80°C for 4–6 h to a moisture content below 0.10% is mandatory when silo or bag transfer occurs above 60% relative humidity. Production-scale failure-mitigation data indicate that lot-to-lot moisture uptake after ambient transfer can vary by 0.03% and must be verified by Karl Fischer titration before entering the barrel. Terminal components produced in this segment include SAE J2044 quick connectors, fuel pump module retainers, fuel line routing clips, sensor brackets, and under-hood wire harness clips.
In high-cavitation tools producing self-locking cable ties, the limiting factor is the drop in elongation at break when sprues and runners are reintroduced into a thin-wall flow path below 0.80 mm. The applicable compliance set includes UL 62275 for cable management products, UL 94 HB at 1.5 mm wall thickness, ASTM D638-14 for tensile yield and break parameters, and RoHS 2011/65/EU for homogeneous material restricted substances. The formulation addition ratio is 100 wt% virgin Grilamid L 20 HL black 9563 for tensile-rated ties and heat-stabilized engine-bay ties; clean runner regrind is restricted to 10 wt% for non-load-rated harness clips and marker carriers after offline blending and drying at 80°C for 4 h. Downstream processing takes place on 24- to 48-cavity injection molds with gas-vented inserts; melt temperature is held at 235–255°C, tool temperature at 50–70°C, and barrel residence time below 8 min to avoid thermo-oxidative yellowing and intermittent pawl root brittleness. Injection speed is set high enough to prevent freeze-off in the pawl root region, and packing decay before gate freeze is a known cause of loop tensile scatter below the production control limit; actual line screening uses UL 62275 loop tensile fixtures. Terminal product types include self-locking cable ties, heat-stabilized engine-bay ties, harness routing clips, marker-label carriers, and tree-mount fasteners for conduit bundles.
Dimensional acceptance for polyamide 12 push-in fittings is driven by the moisture-related dimensional shift that occurs when compressed air lines operate at elevated dew points. Compliance is assessed under ISO 14743:2004 for push-in connectors for thermoplastic tubes, ISO 8573-1 for compressed air quality classes, ISO 62:2008 for water absorption, and ASTM D638-14 for mechanical property retention after conditioning. In the PA12 portion of the assembly, the grade is used at 100 wt% without plasticizer or impact modifier addition because external plasticizers migrate and cause tubing-release force drift. For non-pressure retaining dust caps and tool accessories, up to 20 wt% clean in-house regrind is permissible only after the regrind has been dried to 0.08% moisture and blended in an off-line gravimetric batch blender. Primary downstream processing uses 8/16-cavity valve-gated hot-runner tools on all-electric machines; melt temperature is controlled at 225–245°C, mold temperature at 50–70°C, and feed throat temperature below 50°C to prevent granulate sticking. Pre-drying is performed in a desiccant dryer with a -40°C dew point at 80°C for 4–6 h. The saturated 40°C dew-point dimensional window requires thread tolerances to be checked after 24 h conditioning at 50% RH, because unreinforced PA12 can shift dimensions by a functionally relevant fraction when water uptake increases. Terminal products in this segment are pneumatic push-in fitting bodies, threaded stud connectors, flow restrictor bodies, silencer housings, and tubing release sleeves where acetal or brass is not selected for the collet component.
Because PA12 holds less absorbed moisture than PA6, the post-mold dimensional drift of cable gland threads exposed to humid industrial air remains below the tolerance stack of a metric or PG thread form. Electrical and electronics enclosure components made from Grilamid L 20 HL black 9563 are assessed under IEC 60529 for IP enclosure integrity, IEC 60695-2-11 for glow-wire ignition resistance, UL 94 HB at 1.5 mm, and RoHS 2011/65/EU for restricted substances. The formulation ratio is 100 wt% virgin resin for the insulating housing, gland body, and terminal cover, with no additional carbon black masterbatch because the pre-compounded black 9563 color package already sustains UV and process color uniformity. Regrind is limited to 12 wt% and only for non-live terminal covers; it must be dried to 0.10% maximum residual moisture and screened through a 3 mm dedusting magnet to prevent carbon-black specks in thin sections. Production-scale processing is performed on all-electric injection machines with melt temperature 220–240°C, tool temperature 50–80°C, and a low-shear reciprocating screw. Cavity-pressure transfer from speed to pressure phase at 300–500 bar reduces sink marks around pin inserts. The critical limitation is that this unreinforced PA12 is not inherently UL 94 V-0; where glow-wire or flame-retardant requirements exceed 650°C at 1.0 mm, a chain-extended or flame-retarded polyamide grade is required, and published data for this specific configuration is limited. Terminal products include cable glands, PG/metric locknuts, strain-relief enclosures, sensor connector shells, and terminal block covers.
The replacement of polycarbonate in non-implantable diagnostic housings is evaluated where quaternary ammonium disinfectants cause stress crazing in amorphous polymers. Compliance is limited to non-patient-contact components under ISO 10993-5:2009 for extract cytotoxicity testing, ISO 10993-10:2010 for skin sensitization when incidental surface contact occurs, and ISO 13485 for traceability in medical device manufacturing. The formulation ratio is 100 wt% virgin dry resin; no regrind, no external mold release, and no secondary processing aids are permitted because lot traceability and extractables control prohibit mixed material streams. Downstream processing is performed in ISO Class 8 cleanrooms on dedicated all-electric injection machines with a melt-temperature window of 230–250°C, mold temperature 60–80°C, and pre-drying at 80°C for 6 h to a residual moisture below 0.08%. Hot-runner systems must be free of copper-based alloys that can leach into the melt and interfere with heat stabilizer activity. The operational boundary is explicit: this black heat-stabilized PA12 is not suitable for implantation or prolonged direct tissue contact, and it is not recommended for steam sterilization at 121°C because its heat deflection under load remains below 60°C. Published cytotoxicity data for this exact black heat-stabilized formulation is limited; qualification on the final sterilized component is required. Terminal products include diagnostic device enclosures, cart handles, cable connector shrouds, monitor arm clips, and non-patient-contact laboratory equipment panels.
At wall thicknesses above 4 mm, the melt residence time and cooling rate in industrial filter housing injection molding create a conflict between complete packing and thermal degradation. The relevant compliance frame includes ISO 62:2008 for water absorption, ASTM D638-14 for tensile property verification, ISO 1133-1:2022 for melt flow stability after regrind, and REACH (EC) No 1907/2006 for substance restriction. The formulation addition ratio is 100 wt% virgin Grilamid L 20 HL black 9563 for pressure-bearing filter bowls and end caps; up to 15 wt% clean regrind is accepted in non-pressure sight-glass frames and mounting brackets only after melt flow shift is verified to remain below 10% according to ISO 1133-1:2022. Downstream thick-wall injection molding requires melt temperature 220–240°C, tool temperature 60°C, packing pressure 600–800 bar, and cooling times from 15 s to 30 s depending on wall section. Pre-drying at 80°C for 5 h to below 0.10% moisture is mandatory; above this level, gas entrapment at the melt front produces splay and voiding in thick sections. The unreinforced grade is limited to low-pressure industrial water and chemical filtration; it is not listed for potable water contact unless separately tested and certified. Terminal products include industrial filter bowls, membrane housing end caps, sight-glass frames, dosing pump heads, and chemical process mounting plates.
Competitive EMS-Grivory Grilamid L 20 HL black 9563 Nylon 12, Dry prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
EMS-Grivory Grilamid L 20 HL black 9563 Nylon 12, Dry is an unreinforced polyamide 12 injection-moulding compound whose designation encodes the principal technical differences from other grades in the EMS polyamide 12 range. The segment L 20 identifies a low-viscosity base resin intended for thin-wall flow paths, multi-cavity tooling, and long-flow-part geometries. The suffix HL indicates heat and light stabilisation. The colour code black 9563 identifies a specific carbon-black-containing formulation that contributes to ultraviolet resistance and thermal-oxidative stability during melt processing and service. The term Dry describes a controlled low-moisture supply condition rather than a distinct polymer chemistry; the material is packaged to limit moisture uptake after drying.
The dry state is normally verified by the lot certificate of analysis against ISO 15512:2019. Typical residual moisture at sealing is at or below 0.10 % by mass. Because the dry condition can be reversed by exposure to ambient humidity, material handlers should keep containers sealed until transfer to a dehumidifying hopper dryer or closed conveying line. Exposure in an uncontrolled loading area at 23 °C and 50 % RH may allow surface moisture adsorption within minutes, even if the core pellet remains dry. The practical distinction between this designation and a standard Grilamid L 20 HL shipment is therefore the initial moisture condition at the press, not a change in the polymer structure.
Drying before plastication is required if sealed packaging has been opened or if transfer lines are not closed. A dehumidifying dryer set to 80 °C for 4–8 h with a dew point below -30 °C is a conservative processing envelope. Airflow should be matched to polymer throughput, typically 1.2–1.5 m³/h per 1 kg/h throughput. Residual moisture above 0.10 % reduces melt viscosity through hydrolysis, producing splay, jetting, poor weld-line appearance, and intermittent gate-stringing in multi-cavity tools. On production-scale electric and hydraulic injection-moulding machines with clamp force between 500 kN and 2500 kN, a three-zone screw with L/D ratio between 20:1 and 25:1 and compression ratio near 2.5:1 is adequate for this grade. Melt-temperature settings from 230 °C to 270 °C are representative; mould temperatures between 40 °C and 80 °C provide an operating window in which lower temperatures favour cycle time and upper temperatures improve crystallinity and dimensional stability in semi-structural clips and connectors.
Barrel residence time should not exceed 10 min at the maximum melt-temperature setting. In hot-runner systems, valve-gate sticking and gate-stringing are commonly mistaken for material degradation. Field observation on 16-cavity hot-runner clip tools indicates that gate issues at the black 9563 grade are more frequently caused by excessive hot-drop temperature or insufficient gate cooling than by stabiliser depletion. Raising melt temperature in response to gate-stringing can increase degradation odour and darkening; hot-runner setpoint adjustment should be performed first. Injection velocities of 80–200 mm/s are commonly used on electric machines for wall sections below 1.0 mm. Pack pressure should be held until gate freeze to reduce sink marks in snap-fit features.
Typical applications for the grade include automotive fluid-management clips, brake-line clips, fuel-vapour connectors, pneumatic fittings, and cable ties. The low-viscosity backbone supports filling of long flow paths at moderate injection pressures, while the PA12 base retains ductility for snap-fit assembly after conditioning. Dimensional verification is normally conducted after conditioning at 23 °C and 50 % RH according to ISO 291:2008. The grade is not a direct replacement for glass-reinforced polyamides in structural brackets; its lower stiffness must be compensated by ribbing or wall-thickness revision when substituting for PA66.
| Property | Test method | Unit | Dry | Conditioned |
|---|---|---|---|---|
| Density | ISO 1183-1:2019 | g/cm³ | 1.01 | 1.01 |
| Tensile modulus | ISO 527-1/-2 | MPa | 1000–1200 | 700–900 |
| Tensile stress at yield | ISO 527-1/-2 | MPa | 40–50 | 35–45 |
| Nominal strain at break | ISO 527-1/-2 | % | >50 | >50 |
| Charpy notched impact strength, 23 °C | ISO 179-1/1eA | kJ/m² | 5–8 | 8–12 |
| Melting temperature | ISO 11357-3:2018 | °C | 175–180 | 175–180 |
| Vicat softening temperature B50 | ISO 306:2013 | °C | 130–145 | 130–145 |
| Water absorption at saturation | ISO 62:2008 | % | 1.2–1.6 | — |
The values shown are representative ranges for heat-stabilised polyamide 12 injection grades and are not a substitute for the supplier certificate of analysis. Dry values refer to specimens moulded with residual moisture at or below 0.10 %; conditioned values reflect moisture uptake in the ISO 291:2008 standard atmosphere or equivalent 50 % RH conditioning. The black 9563 formulation may shift tensile and impact values by a few percent relative to natural PA12; release decisions should use lot-specific data.
Compared with unreinforced polyamide 12 grades without HL stabilisation, the heat and light stabiliser package in Grilamid L 20 HL black 9563 is intended to slow molecular-weight loss during melt processing and to extend resistance to embrittlement under hot-air ageing and intermittent ultraviolet exposure. Carbon black in the 9563 formulation provides a first line of ultraviolet screening, but the grade is not intended as a direct substitute for specialty UV-stabilised grades in continuous outdoor architectural applications without component-level weathering validation. Accelerated weathering comparisons under ISO 4892-2:2013 xenon-arc cycling may show less surface embrittlement than unstabilised PA12; the result remains comparative because part thickness, orientation, and stress state control the appearance of cracks and loss of gloss.
| Parameter | Typical PA12 | Typical PA6 | Typical PA66 |
|---|---|---|---|
| Density by ISO 1183-1:2019 | 1.01 g/cm³ | 1.14 g/cm³ | 1.14 g/cm³ |
| Saturation water absorption by ISO 62:2008 | 1.2–1.6 % | 9–10 % | 8–9 % |
| Melting temperature by ISO 11357-3:2018 | 175–180 °C | 220–225 °C | 255–260 °C |
| Low-temperature ductility retention | High | Moderate | Moderate |
| Relative dry stiffness | Lower | Higher | Higher |
The selection of PA12 over PA6 or PA66 in fluid-contact components is driven primarily by lower equilibrium moisture uptake. At saturation, PA12 absorbs roughly 1.2–1.6 % water by mass under ISO 62:2008, while PA6 and PA66 may absorb 8–10 % and 8–9 % respectively. This difference reduces seasonal swelling, connector insertion-force variation, and loss of modulus in humid engine-compartment conditions. In engine-bay locations where peak air temperatures reach 100–110 °C and fluid contact is intermittent, a heat-stabilised PA12 such as Gralamid L 20 HL black 9563 can provide stable snap-fit performance when the design accounts for the lower dry stiffness versus PA66. The density difference of 1.01 g/cm³ against 1.14 g/cm³ also lowers part mass at constant geometry, though ribbing may be required to recover load-bearing capacity.
Fuel-vapour and low-pressure fluid connectors produced from PA12 are usually validated as part of a system rather than as isolated mouldings. Tests are commonly aligned to OEM specifications that include thermal cycling, pressure pulsation, and chemical exposure; no material-level certificate alone establishes fitness for fuel-system use. The grade should be evaluated under the specific test sequence required by the end-use application, including burst-pressure and leakage testing after conditioning and ageing. Published data for this specific black 9563 formulation in every fluid environment is limited; therefore component validation remains the controlling technical activity.
Relative to glass-fibre-reinforced PA12, this unreinforced grade retains higher elongation and lower melt viscosity but has substantially lower tensile modulus and creep resistance. Relative to natural or electrically conductive PA12 grades, the black 9563 formulation may offer improved ultraviolet screening but can be less suitable for laser-transmission welding unless an appropriate absorber is present in the mating part. Relative to dry-blended regrind materials, virgin dry Grilamid L 20 HL black 9563 provides more consistent melt viscosity and less batch-to-batch variability in notched impact. Production trials on automotive clip tools show that adding 10–20 % clean regrind from the same lot may be acceptable for non-safety components, but higher regrind fractions shift impact behaviour and colour. The operational boundary for regrind use should be confirmed by lot-level tensile and impact testing under ISO 527-1/-2 and ISO 179-1/1eA.
Continuous service at temperatures above 110 °C in air is not recommended without service-life validation, because thermal-oxidative degradation accelerates rapidly at elevated temperature despite HL stabilisation. Contact with strong mineral acids, concentrated oxidising media, and high-temperature aqueous glycol systems may produce hydrolysis or environmental stress cracking in stressed mouldings. Avoid uncontrolled use of high-zinc chloride road-salt residues on stressed snap-fit clips; zinc chloride has been documented as a stress-cracking agent for polyamides under certain service conditions. When those process or service limits are exceeded, the material selection should be revalidated.
