| HS Code | 630223 |
| Density | 1.02 g/cm³ |
| Tensile Modulus Conditioned | 1500 MPa |
| Tensile Stress At Yield Conditioned | 42 MPa |
| Tensile Strain At Yield Conditioned | 8% |
| Nominal Strain At Break Conditioned | >50% |
| Charpy Impact Strength Unnotched Conditioned | 20 kJ/m² |
| Shore D Hardness Conditioned | 70 |
| Melting Temperature | 178 °C |
| Heat Deflection Temperature 1 8 Mpa | 55 °C |
| Water Absorption At Saturation | 0.9% |
As an accredited Bada BADAMID PA12 MoS2 uncolored PA12, Conditioned factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in sealed 25 kg polyethylene-lined bags to protect conditioned PA12 from moisture and contamination. |
| Container Loading (20′ FCL) | 20′ FCL container with Bada BADAMID PA12 MoS2 uncolored PA12, conditioned, securely packed and stowed for safe transport. |
| Shipping | Bada BADAMID PA12 MoS2 uncolored PA12, Conditioned is shipped in sealed, moisture-proof packaging to preserve its conditioned state. Store in a cool, dry area away from direct sunlight and ignition sources. Handle with standard industrial hygiene practices; no hazardous goods classification for general transport when properly packed. |
| Storage | Store Bada BADAMID PA12 MoS2 uncolored PA12 (Conditioned) in its original, tightly sealed container in a cool, dry, well-ventilated area. Protect from moisture, direct sunlight, and heat sources to prevent degradation. Keep away from ignition sources and incompatible materials. Maintain moderate temperatures and avoid rough handling to preserve material properties. |
| Shelf Life | Shelf life is typically 2 years from production date when stored sealed, dry, and cool in original packaging. |
Bada BADAMID PA12 MoS2 uncolored, conditioned pellets are specified for automotive seat adjustment worm gears, lumbar support sliding blocks and window regulator guide shoes because the dispersed molybdenum disulfide platelets reduce breakout friction and steady-state sliding friction against POM and 1.4301 stainless steel counterparts. The molybdenum disulfide loading is controlled at 1.8–2.2 wt%; ash content is checked according to ISO 3451-1:2019 and validated against the supplier certificate. In a laboratory block-on-ring test conducted according to ASTM G99-17 at 0.5 m/s sliding velocity and 1.0 MPa apparent contact pressure, the coefficient of friction typically falls within 0.10–0.20. The conditioned supply state is critical because the moulding compound already carries 0.6–0.8 wt% absorbed moisture after storage at 23 °C and 50 % relative humidity; this moisture uptake suppresses brittle failure in snap-fit and impact-loaded gear bosses after installation. Drying must still be performed before injection moulding in a desiccant dryer with a dew point of −30 °C or lower at 80 °C until residual moisture is below 0.10 wt%. The production line uses a 1200 kN servo-hydraulic injection moulding machine with a 25 mm diameter screw, L/D 22, and a compression ratio of 2.0:1. Barrel set points from feed zone to nozzle are 190 °C, 220 °C, 230 °C and 235 °C; the melt temperature measured by an air-shot probe is maintained at 230–250 °C. The mould is held at 70–80 °C to obtain adequate surface crystallinity and to prevent post-mould shrinkage above 0.9 % in the linear seat-track dimension. Injection speed for 2.0 mm nominal wall sections is set to 120–180 mm/s, screw peripheral speed is limited to 0.3 m/s, and back pressure is held at 40 bar. Cavity pressure at switch-over from velocity to pressure control is 80 MPa, with packing pressure kept at 50 MPa for 3.0 s; longer packing at higher pressure has caused gate-stringing and MoS2-rich shear bands at the tooth root in multi-cavity production tools.
Compliance for this segment is governed by REACH Regulation (EC) No 1907/2006, the EU end-of-life vehicle directive 2000/53/EC, and cabin interior emission requirements commonly characterised as total VOC by VDA 277. Terminal parts are validated on an OEM seat-adjuster rig for 80,000 forward and reverse cycles between −40 °C and 80 °C; the acceptance protocol permits no more than 0.3° increase in gear backlash measured according to the OEM test specification. Published component-level data for this specific Bada compound in seat-adjuster assemblies is limited; batch-level validation against the supplier certificate is required before series release.
Thin-wall HVAC air-door actuator sector gears and mirror fold-drive gears moulded from the same BADAMID PA12 MoS2 compound are constrained by weld-line integrity, not by gross wear. The molybdenum disulfide flakes align along flow fronts and act as local stress risers where two melt streams meet in the tooth root. A weld line is moved out of the loaded flank by sequential valve-gate timing; on an eight-cavity tool with two valve drops per cavity, the second valve is opened 0.5 s after the first, placing the knit line in the low-stress hub. Typical MoS2 loading for this part is 1.5–2.5 wt%, and dispersion is controlled by checking polished cross-sections for agglomerates above 10 µm. The injection moulding machine is a 1000 kN servo-electric unit with a 22 mm screw, L/D 20, and a 2.0:1 compression ratio. Melt temperature is held at 240–245 °C, and the mould temperature is raised to 80–90 °C for improved skin-layer flow. For a nominal wall of 0.8 mm, injection speed is set at 220 mm/s; switch-over is initiated by cavity pressure sensors at 75 MPa. Packing pressure is limited to 45 MPa for 0.6 s because the gate freezes after approximately 1.0 s and continued packing only creates residual stress in the runner. Weld-line strength retention is measured on type 1A tensile bars according to ISO 527-2; production acceptance requires at least 65 % of the non-welded reference value at 23 °C and 55 % at −30 °C. Gear tooth thickness and runout are inspected according to ISO 1328-1:2013 tolerance class 9 for plastic gears, with tooth thickness verified by gear-measuring centre.
| Property | Test method | Conditioned range |
|---|---|---|
| Density | ISO 1183-1 | 1.03–1.05 g/cm³ |
| Tensile modulus | ISO 527-1/-2 | 1,700–2,000 MPa |
| Tensile yield stress | ISO 527-1/-2 | 38–45 MPa |
| Nominal strain at break | ISO 527-1/-2 | 20–40 % |
| Charpy notched impact strength, 23 °C | ISO 179-1/1eA | 5–8 kJ/m² |
| Flexural modulus | ISO 178 | 1,500–1,800 MPa |
| Heat deflection temperature, 0.45 MPa | ISO 75-2/B | 90–110 °C |
| Melt volume rate, 275 °C/5 kg | ISO 1133-1 | 8–20 cm³/10 min |
| Coefficient of friction against steel | ASTM G99 | 0.10–0.20 |
Terminal parts in this subgroup are HVAC door actuator sector gears, electric mirror fold-gear housings, and throttle valve actuator cams. Compliance is assessed through REACH Regulation (EC) No 1907/2006, and interior HVAC components are additionally screened for volatile organic compounds using VDA 277; published data for this specific Bada grade in thin-wall HVAC gearing is limited, so first-article validation should include a full gear-train durability test under −40 °C to 85 °C thermal shock and 90 % relative humidity.
Conveyor roller chain-guide rings and idler bushings are produced from BADAMID PA12 MoS2 in low-speed package-handling lines where the polymer’s conditioned moisture content of 0.6–0.8 wt% reduces bore closure against a 20 mm stainless steel shaft to less than 0.03 mm when measured after 48 h exposure at 23 °C and 50 % relative humidity. The specified molybdenum disulfide content is 1.8–2.2 wt%; after injection moulding, ash content is checked according to ISO 3451-1:2019 and is expected to fall in the range of 1.9–2.3 wt%. Parts are dried in a dry-air hopper at 70 °C for 6 h to a residual moisture below 0.12 wt%, then injection moulded on a 1600 kN hydraulic machine with a 30 mm screw, L/D 20, and a 2.0:1 compression ratio. Melt temperature is held at 225 °C and mould temperature at 60 °C for a 4.0 mm section; the low melt temperature reduces sink marks in the thick bushing flange. The single centre gate is oversized by 20 % relative to standard PA12 to avoid premature gate freeze and sink at the bearing shoulder. Sliding wear is evaluated by block-on-ring testing according to ISO 7148-1:2012 against a polished 1.4301 stainless steel counterface with surface roughness Ra 0.2–0.4 µm, under dry intermittent sliding at 0.2 m/s and 0.4 MPa. Published data for similar PA12-MoS2 systems place the specific wear rate in the range of 10⁻⁶ mm³/N·m; batch acceptance requires a comparison run against the supplier reference specimen under the same test parameters. Terminal components are gravity roller conveyor chain-guide rings, cam followers, and idler bushings. This application is not intended for direct food contact; washdown with chlorinated alkaline cleaners at 60 °C must be excluded because the amide backbone hydrolyzes under sustained hot alkaline exposure.
Linear guide pads and autosampler carriage wear plates made from BADAMID PA12 MoS2 are machined from injection-moulded blanks 12 mm thick. The compound is loaded at 2.0 wt% MoS2 and conditioned to 0.5–0.7 wt% moisture before machining to stabilise part dimensions. After moulding, the blanks are annealed in a vacuum oven at 120 °C for 2 h to reduce residual stress; subsequent double-disc grinding achieves a flatness of 0.01 mm/100 mm verified by coordinate measuring equipment according to ISO 1101:2017 flatness tolerance. The sliding counterpart is an anodised aluminium rail with Ra 0.3–0.5 µm; breakaway coefficient of friction measured on a thrust-washer configuration according to ASTM D3702-94 at 0.05 m/s and 0.35 MPa is controlled below 0.18. The terminal products are autosampler carriage wear plates, linear guide pads, and microplate gripper jaws. Compliance for the electrical and electronic equipment in this segment is assessed under RoHS Directive 2011/65/EU; cleanroom particulate emission and extractable levels are not inherent properties of the compound. Where diagnostic instruments may contact patient samples, the moulded part must be tested for polymer extractables according to ISO 10993-12 and material chemical characterisation according to ISO 10993-18. Repeated autoclaving at 121 °C is outside the operational boundary because hot-water hydrolysis and dimensional growth above the design clearance will occur.
Production pain points in this segment are tied to post-machining warpage, not wear. The anneal step must be executed before rough grinding; if annealing is skipped, the plate bows after the first moisture exposure because the moulded skin and core store different levels of residual stress. When bowed blanks are mounted on a magnetic chuck, edge lift exceeds 0.02 mm and the ground surface becomes convex. The corrective action is to anneal in a vacuum oven at 120 °C for 2 h, cool at 1 °C/min to 60 °C, and only then perform the double-disc grind. Tool design benefits from a 2.5° draft angle and a central sprue gate; edge gating creates a weld line along the sliding edge and reduces bearing contact area irregularly.
Metering pump piston guide rings and diaphragm backing rings are machined from injection-moulded tube stock of BADAMID PA12 MoS2 for service in neutral, paraffinic and aliphatic hydrocarbon media. Conditioned PA12 shows volume swell below 1.5 % after 7 d immersion in IRM 902 reference oil at 23 °C, assessed according to ISO 175:2010; the MoS2 filler does not alter the base PA12 resistance to dilute alkaline solutions but the compound is not suitable for strong acids, oxidising media or phenol at elevated temperature. The molybdenum disulfide concentration is 1.5–2.0 wt%, and nitrogen annealing at 130 °C for 4 h is applied after rough turning to relax machining-induced stress. Finish turning on a Swiss-type CNC lathe produces a bore tolerance of H7 per ISO 286-2 and a surface roughness of Ra 0.4–0.8 µm on the piston contact face. The components are conditioned to 0.6 wt% moisture before assembly to avoid later dimensional drift. Terminal items are eccentric piston guide rings, diaphragm backing rings, and valve poppet dampers in chemical metering pumps. REACH Regulation (EC) No 1907/2006 applies to the compound. The material must not be specified as an antistatic solution; surface resistivity is too high for controlled dissipation unless separately filled with conductive additive, and standard MoS2-PA12 is not a replacement for carbon-filled grades in ATEX-relevant equipment.
Field failures include bore seizure after machining when the tube stock is not conditioned before finish turning. If finish turning is performed on dry-as-moulded PA12-MoS2, the final bore will grow after the first 48 h in humid air, and the H7 clearance can open or close depending on constraint from the metal housing. Production control therefore conditions blanks in a climate chamber at 23 °C and 50 % relative humidity until 0.6 wt% moisture is reached, measured by Karl Fischer titration, before the final pass. A second failure mode is surface cracking at sharp corners when annealing is omitted; residual stress from the injection-moulded tube stock concentrates at the transition between the flange and the thin cylindrical wall.
Textile bobbin holder inserts and office printer carriage bushings use BADAMID PA12 MoS2 because the molybdenum disulfide transfer film on the steel or aluminium shaft suppresses the static-to-dynamic friction transition that produces audible stick-slip. Coefficient values measured according to ASTM D1894-14 on a flat strip sliding against a ground steel plate at 0.05 m/s typically give a static coefficient near 0.15 and a dynamic coefficient near 0.13, yielding a ratio below 1.20. The parts are injection moulded with a 0.7 mm wall on a 600 kN servo-electric machine with a 18 mm screw, L/D 20, and a 2.0:1 compression ratio. Melt temperature is 230 °C and mould temperature is 65 °C; polished cavity surfaces and a pin gate are used to minimise gate stringing on the small bearing bore. Terminal products are printer carriage bushings, textile bobbin support inserts, and paper transport guide blocks. No universal acoustic standard applies; OEM acceptance is commonly based on an A-weighted sound pressure measurement below 40 dBA at 0.5 m from the moving carriage assembly, but published data for this specific condition is limited.
In long-travel linear motion systems, cable drag chain crosspiece pads and side-link wear strips are extruded as 2.5 mm U-shaped profiles from BADAMID PA12 MoS2. The material is processed on a 45 mm single-screw extruder with L/D 24 and a three-zone screw with a compression ratio of 2.0:1; barrel temperatures from feed to die are 200 °C, 215 °C, 225 °C and 220 °C. Melt temperature at the die is limited to 225–235 °C because above 250 °C the MoS2-PA12 melt exhibits surface melt fracture on the profile edge. The MoS2 loading is 1.8–2.0 wt%; dispersion is stabilised by a 60/120/200 mesh screen pack upstream of the die, and the line is run at a haul-off speed of 8–12 m/min. The conditioned state is restored after extrusion by storage for 7 d at 23 °C and 50 % relative humidity, bringing the moisture content to 0.6–0.8 wt% before cutting to length. Terminal products are drag chain crosspiece pads, side-link wear strips, and guide-trough liners. Flammability for industrial machinery is not assumed; if the application falls under IEC 60204-1 machine electrical equipment, the final assembly must be evaluated according to the equipment-level fire enclosure requirements. The material is not suitable for direct contact with strong acids or steam cleaning above 80 °C.
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Bada BADAMID PA12 MoS2 uncolored PA12, Conditioned is a molybdenum disulfide-modified polyamide 12 compound whose trade designation encodes the base polymer, the solid lubricant filler, the colour state and the moisture reference state. The base resin is a polyamide 12 homopolymer; the filler is lamellar molybdenum disulfide, and the uncoloured designation indicates that no additional pigment or carbon black is included, although the compound is dark grey because of the MoS2 content. The term “Conditioned” refers to moisture equilibration in a standard atmosphere of 23 °C and 50 % relative humidity in accordance with ISO 291. In that state, the compound typically contains 0.4–0.7 wt% moisture by ISO 62; this moisture plasticises the amorphous phase of PA12 and must be considered when comparing dry-as-molded data with conditioned mechanical values.
Representative conditioned short-term properties for PA12-MoS2 grades are density 1.04–1.06 g/cm³ by ISO 1183-1; tensile modulus 1,300–1,600 MPa by ISO 527-2/1A; yield stress 40–45 MPa; notched Charpy impact 5–8 kJ/m² at 23 °C by ISO 179-1/1eA; and heat distortion temperature under 1.8 MPa of 45–55 °C by ISO 75-2. Published data for this specific configuration are limited in public summary documents, so values should be confirmed against the batch certificate. The grade is used in dry-running gear wheels, cams, plain bearings, slider guides, business-machine mechanisms, textile machinery, and automotive actuators, particularly where low stick-slip and reduced wear against steel countersurfaces are required.
The MoS2-filled grade differs from unmodified PA12 in three measurable ways: an increase in tensile and flexural modulus, a decrease in notched impact strength, and a reduction in dry-running dynamic friction after tribofilm formation. The first follows from load transfer to dispersed lamellar particles; the second arises from particulate stress concentration at the filler-matrix interface; the third follows from solid-solid lubrication. The friction reduction is not instantaneous. During initial sliding, the coefficient of friction may be close to unfilled PA12 until lamellae exfoliate and a transfer film forms on the steel counterface. A running-in phase is normally required before a stable low-friction state is reached.
Measured against unfilled PA12, the filled grade shows conditioned tensile modulus roughly 1,300–1,600 MPa compared with 900–1,100 MPa, while notched Charpy impact at 23 °C drops from 8–12 kJ/m² to 5–8 kJ/m². The dynamic coefficient against a hardened steel counterface with roughness Ra 0.2–0.4 µm under 0.5–1.0 MPa and 0.3–0.5 m/s stabilises at 0.12–0.18 for the MoS2-modified material, compared with 0.25–0.35 for unfilled PA12 in pin-on-disc configuration per ASTM G99. In production practice, this difference reduces stick-slip on slow-moving carriages and lowers tonal noise in gearboxes, but the reduction in weld-line strength and notched impact requires the gate location and weld-line position to be reconsidered when converting an existing unfilled PA12 part.
| Property | Method | Bada BADAMID PA12 MoS2 | Unfilled PA12 | PA6 MoS2 |
|---|---|---|---|---|
| Density | ISO 1183-1 | 1.04–1.06 g/cm³ | 1.01–1.02 g/cm³ | 1.13–1.16 g/cm³ |
| Tensile modulus | ISO 527-2/1A | 1,300–1,600 MPa | 900–1,100 MPa | 1,000–1,300 MPa |
| Yield stress | ISO 527-2/1A | 40–45 MPa | 35–40 MPa | 45–55 MPa |
| Nominal strain at break | ISO 527-2/1A | 8–20 % | 150–300 % | 10–25 % |
| Notched Charpy impact at 23 °C | ISO 179-1/1eA | 5–8 kJ/m² | 8–12 kJ/m² | 4–7 kJ/m² |
| HDT/A at 1.8 MPa | ISO 75-2 | 45–55 °C | 50–60 °C | 55–65 °C |
| Equilibrium moisture at 23 °C/50 % RH | ISO 62 | 0.4–0.7 % | 0.5–0.8 % | 1.8–2.5 % |
| Dynamic friction vs steel | ASTM G99 | 0.12–0.18 | 0.25–0.35 | 0.15–0.22 |
The tribological response is not a single number. It depends on counterface roughness, contact pressure, sliding velocity, duty cycle, and ambient temperature. The friction values in Table 1 are pin-on-disc values obtained after tribofilm formation on hardened steel counterfaces. Above a material-specific pressure-velocity product, friction rises and wear rate increases rapidly because frictional heating melts the PA12 matrix. The limiting PV of thermoplastic bearing grades is not an intrinsic material constant and must be measured on the actual part geometry; published data for this specific configuration are limited. For unfilled PA12 sliding bearings, continuous-running PV limits commonly cited in engineering thermoplastics guides are below 0.1 MPa·m/s, and the MoS2-filled grade is typically used within the same order of magnitude with lower wear. Component-level gear or bushing tests are required before release.
Before melt processing, the compound is dried in a desiccant dryer to a residual moisture content below 0.10 wt%. Drying at 80 °C for 4–6 h with a dew point below -20 °C is normally sufficient; if sacks have been exposed to high humidity, the time is extended until granule moisture measured by ISO 15512 is below the limit. For injection molding, melt temperature is set between 240 °C and 270 °C, and mold wall temperature is maintained between 40 °C and 80 °C. The upper end of the mold-temperature range is preferred for thin-walled gear cavities because it delays frozen-skin formation and permits accurate replication of involute tooth geometry. Mold temperatures below 40 °C reduce crystallinity in the surface layer and increase post-mold shrinkage variation; in multi-cavity gear tools, this is observed as elevated scatter in tooth thickness and root diameter.
Barrel residence time should not exceed 8 min at melt temperature. Extended residence oxidises the MoS2 and can produce surface splay and loss of lubricant efficiency. On production-scale single-screw injection machines with screw recovery times below 6 s for a 140 g shot, shot-to-shot melt temperature variation above 5 °C has been reported for similar MoS2-filled PA12 compounds; this variation can be reduced by lower backpressure and a positive shut-off nozzle. The practical failure modes in extended molding campaigns are deposit formation on mold vents and cavity edges, not gross polymer degradation. Periodic vent cleaning and dry-air flow around the mold are required to maintain consistent filling.
| Property | Method | Dry as molded | Conditioned |
|---|---|---|---|
| Water content | ISO 15512 | <0.10 wt% | 0.4–0.7 wt% |
| Tensile modulus | ISO 527-2/1A | 1,700–2,000 MPa | 1,300–1,600 MPa |
| Yield stress | ISO 527-2/1A | 45–50 MPa | 40–45 MPa |
| Nominal strain at break | ISO 527-2/1A | 5–10 % | 15–25 % |
| Notched Charpy impact at 23 °C | ISO 179-1/1eA | 4–6 kJ/m² | 5–8 kJ/m² |
| Flexural modulus | ISO 178 | 1,800–2,100 MPa | 1,400–1,700 MPa |
Equilibration at 23 °C/50 % RH may require several weeks for sections above 4 mm. Accelerated conditioning at 70 °C/62 % RH for 24–48 h is used in production, but final verification must be gravimetric because over-conditioning at elevated humidity can exceed the 0.7 wt% ceiling.
Moisture conditioning changes the fracture mechanics of this material from a relatively brittle dry state to a tougher conditioned state. Water is absorbed preferentially in the amorphous regions and lowers the glass transition of the polyamide matrix. Dry PA12 typically shows a DMA tan δ peak near 40–50 °C; conditioned PA12 can show the peak near 0–10 °C in dynamic mechanical analysis per ISO 6721-7. The practical consequence is that tensile modulus and yield stress decrease with conditioning, while elongation at break and notched impact increase. Designers should use dry data for short-term as-molded conditions and conditioned data for indoor service at 50 % RH. The supplier designation “Conditioned” does not mean saturated. Saturation in liquid water by ISO 62 can raise PA12 moisture content above 1.0 wt%, but the standard laboratory atmosphere of ISO 291 is a less severe state.
Mold shrinkage of the MoS2-filled PA12 is lower and more balanced than unfilled PA12. Typical values measured on 60 mm × 60 mm × 2 mm plaques per ISO 294-4 are 0.6–0.9 % parallel to flow and 0.8–1.1 % perpendicular to flow, compared with 0.7–1.2 % and 0.9–1.4 % for unfilled PA12. The more isotropic shrinkage of the filled grade supports thick-section gears and bushings, but gate design and packing profile still dominate final dimensions. In multi-cavity production tools, retaining cavity pressure until gate freeze is essential; premature gate freeze produces shrink voids at the root of gear teeth and increases out-of-roundness in bushings. For semi-crystalline PA12, mold wall temperature should be held in the upper half of the recommended range to ensure crystallisation before ejection and to reduce post-mold dimensional drift.
Post-mold moisture uptake causes small swelling. Length change after 24 h immersion in 23 °C water is below 0.3 % for PA12-MoS2, while PA6-MoS2 can exceed 1.0 % under the same condition. This is one of the reasons for selecting PA12-MoS2 in precise humid mechanisms, but the part geometry and wall-thickness distribution must be included in dimensional tolerance analysis because moisture uptake is diffusion-controlled.
The PA12 backbone has a lower amide density than PA6, which reduces equilibrium moisture uptake at 50 % RH to roughly one-fourth to one-third of PA6. The result is a smaller conditioned modulus shift and lower swelling in humid service. For example, the equilibrium moisture values in Table 1 show 0.4–0.7 % for PA12-MoS2 and 1.8–2.5 % for PA6-MoS2. In splined gear inserts, paper-handling rollers, and actuator gears that operate in partially humid enclosures, PA6-MoS2 can absorb enough water to increase tooth thickness and raise torque; PA12-MoS2 is selected to limit that effect. The PA12 matrix also melts at 176–180 °C by ISO 11357-3, below PA6 at 220 °C, which reduces melt processing temperature but also lowers the continuous-use ceiling.
Against unfilled acetal copolymer, PA12-MoS2 has lower density by approximately 30 %, lower processing temperature, and better tolerance of intermittent gear overloads because of its higher elongation, but it has lower hardness and lower wear resistance in continuously flooded water. Against unfilled PEEK, the PA12-MoS2 grade is limited to continuous service below roughly 80–90 °C in air, whereas PEEK retains strength at far higher temperatures. Selection between these classes is therefore governed by thermo-oxidative aging, hot hardness and cost rather than by short-term coefficient of friction alone.
The chemical resistance envelope of this compound is governed by the PA12 matrix. The material withstands aliphatic hydrocarbons, mineral oils, diesel fuel, greases, and many dilute cleaning agents, but it is attacked by concentrated mineral acids, phenols, formic acid, and strong oxidising agents. Strong oxidisers can also degrade MoS2 to molybdenum oxides, destroying the lubricant function. The uncoloured grade does not contain a sufficient UV-stabiliser package for continuous outdoor exposure; long-term outdoor use requires black pigmentation or a suitable coating. For parts in food-contact service, migration testing under EU 10/2011 or FDA 21 CFR 177.1500 is required for the specific part and food simulant because generic resin compliance is not sufficient.
RoHS compliance is expected under RoHS 2011/65/EU Annex II because the base polymer and MoS2 filler do not contain lead, mercury, cadmium, hexavalent chromium, PBB or PBDE above maximum concentration values; REACH SVHC status must be confirmed against the current safety datasheet. Continuous exposure to water above 70 °C can cause progressive hydrolysis of the polyamide chain; PA12 is more hydrolysis-resistant than PA6, but it is not equivalent to PPS or PEEK in pressurised hot water. Published data for this specific configuration are limited for such hydrothermal service, so component validation should include molecular-weight retention and impact-strength testing after immersion.
