| HS Code | 339185 |
| Material | EOS PA 3200 GF Nylon 12, Glass Bead Filled |
| Density | 1.22 g/cm³ |
| Particle Size | 45-90 µm |
| Melting Point | 176 °C |
| Tensile Modulus | 3200 MPa |
| Tensile Strength | 51 MPa |
| Elongation At Break | 9% |
| Flexural Modulus | 3200 MPa |
| Flexural Strength | 65 MPa |
| Charpy Impact Notched | 5 kJ/m² |
| Charpy Impact Unnotched | 40 kJ/m² |
| Heat Deflection Temperature 1 8 Mpa | 105 °C |
As an accredited EOS PA 3200 GF Nylon 12, Glass Bead Filled factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | EOS PA 3200 GF Nylon 12, Glass Bead Filled, is supplied in sealed 10 kg containers with desiccant, ready for laser sintering. |
| Container Loading (20′ FCL) | 20′ FCL: 20-foot container loading of EOS PA 3200 GF Nylon 12 pellets, securely palletized, protected from moisture, and properly labeled for safe transport. |
| Shipping | The material ships in sealed, moisture-barrier packaging to protect the glass-bead-filled nylon powder from humidity and contamination. Handle carefully to avoid generating dust, store in a dry, cool area, and keep containers upright. No special hazardous shipping requirements apply, though proper grounding is recommended. |
| Storage | Store EOS PA 3200 GF in its original sealed container in a cool, dry place away from direct sunlight and heat sources. Protect from moisture—keep the lid tightly closed after use. Avoid exposure to humid environments. Recommended storage temperature: 15–25°C. Proper handling ensures powder flow, consistent part quality, and prevents moisture-related defects. |
| Shelf Life | Store in original sealed container, dry and cool. Shelf life is typically two years from manufacturing date. |
In selective laser sintering production lines supplying automotive underhood programs, EOS PA 3200 GF is processed as a ready-to-sinter polyamide 12 powder with glass bead reinforcement already dispersed in the matrix. No downstream compounding of glass bead filler is performed, and the addition ratio at the point of use therefore describes the proportion of virgin PA 3200 GF to reclaimed powder introduced into the build hopper. Production batch records from EOS P500 and P396 systems typically hold virgin refresh at 35–50 wt% after recovered powder has passed a 150 μm sieve to remove agglomerated polyamide fines and free glass beads. Raising the recycled fraction above 50 wt% has been observed to shift ASTM D638-14 tensile elongation and ASTM D648-07 heat deflection temperature beyond drawing limits for underhood brackets, while increasing glass bead segregation across 100 μm and 120 μm layers.
Industry compliance standards applicable to this segment include IATF 16949:2016 clause 8.4 for control of outsourced additive manufacturing processes, REACH Regulation (EC) No 1907/2006 Annex XVII, RoHS Directive 2011/65/EU for restricted substances, and ISO 2768-1 for general tolerances on sintered features. Glass bead reinforced PA12 is not inherently heat-stabilized for continuous exposure above 120 °C; underhood validation therefore includes thermal aging per ASTM D3045-92 before release. The downstream production process includes drying in a dry-air dryer with a dew point no higher than −40 °C at 80 °C for 4–6 h, reducing moisture below 0.1 wt%. The build chamber is held at 168–178 °C under nitrogen with residual oxygen below 1 vol%, with recoater speed reduced to 100–120 mm/s to limit glass bead roll. After cooling to below 80 °C, parts are depowdered and media blasted with glass beads at 2.0–3.5 bar to clear internal channels. Terminal finished products in this segment include coolant line support brackets, HVAC actuator armatures, air intake resonator mounting collars, and EGR valve cover spacers, produced in bridge volumes below 5,000 units/year. Published data for long-term glycol exposure in these specific glass bead filled PA12 configurations is limited; release requires 1,000 h exposure to 50/50 ethylene glycol/water at 90 °C.
Recycled-powder refresh rate in industrial jig production is governed less by chemical degradation than by mechanical classification of the glass bead filler. The filler is not chemically bonded to the polyamide 12 matrix; repeated recoating and reclamation sieving can strip fine beads from the 50–200 μm powder particles, shifting the effective filler concentration in reclaimed overflow. To hold fixture locating bore tolerances to ISO 2768-1 class m, blend stations prepare 30–40 wt% virgin PA 3200 GF with reclaimed powder that has passed a 150 μm ultrasonic sieve and a 75 μm fine-fraction separator. The reclaimed fraction is not allowed to exceed 50 wt% because the resulting melt-pool viscosity deviation changes edge definition and thread-forming torque for inserted brass bushings. Melt flow rate is monitored per ISO 1133-1:2022 at 235 °C with a 5 kg load; deviation beyond ±15% from the virgin lot value triggers re-blending.
Compliance standards referenced on production drawings include ISO 12100:2010 for tooling risk assessment, ISO 13849-1:2015 if the fixture carries actuators, and ASTM D256-10 for notched Izod impact of fixture bodies subject to incidental loading. Material traceability is maintained under ISO 9001:2015 clause 8.5.2. The downstream process uses EOS P396 or EOS P500 platforms with build chamber temperature 170–176 °C, laser power 25–50 W, scan speed 6–10 m/s, and layer thickness 100 μm to achieve as-built hole tolerances of ±0.15 mm before post-machining. After depowdering, datum faces are machined on a 3-axis CNC mill with carbide tooling at 5,000–10,000 rpm to maintain flatness within 0.05 mm over 100 mm. Thermal insertion of brass inserts at 180–220 °C is used because glass bead filled PA12 has lower elongation at break than unfilled PA12. Observed production failure: press-fit insert installation below 160 °C produces radial cracks at hole walls because the filler reduces local yielding. Terminal products include robotic gripper jaw sets with vacuum-check profiles, assembly fixture base plates, drill guide bushings for CFRP stacks, and CMM fixture bodies with embedded thread inserts. These tools support 50,000–200,000 assembly operations before dimensional re-validation.
Consumer appliance housing programs specify EOS PA 3200 GF where documented part volumes fall below 5,000 units and complex snap-fit geometry makes injection molding tooling economically unjustifiable. The material is introduced as supplied, with no additional filler masterbatch or compounding; the formulation addition ratio is expressed as 100 wt% PA 3200 GF in the fresh powder hopper, split between 100 wt% virgin powder for visible Class A surface parts and a 50/50 virgin/reclaimed blend for internal brackets where surface specularity is not inspected. The 50/50 blend must be re-qualified per UL 94 HB horizontal burn classification because recycled powder can carry lubricant residues from the SLS machine and shift flammability consistency.
Compliance standards for this segment include IEC 60335-1:2020 for household electrical safety, UL 94 HB for flammability classification, RoHS Directive 2011/65/EU, and ISO 11469:2016 for polymer part marking. Parts requiring food contact are excluded because glass bead filled PA12 is not qualified under FDA 21 CFR 177.1500 or EU 10/2011. Downstream processing includes drying at 80 °C for 6 h to <0.1 wt% moisture, followed by SLS fabrication with 120 μm layers on P500-class systems at chamber temperature 170–174 °C. After cooling below 75 °C, parts are depowdered and bead blasted at 2.0 bar to produce a uniform matt finish. Vapor smoothing is generally avoided because solvent exposure can swell the PA12 matrix and expose glass bead surfaces, increasing surface roughness beyond 25 μm Ra. Snap-fit deflection is validated on as-built specimens per ISO 178 at 2 mm/min crosshead speed. Terminal finished parts include vacuum cleaner motor housings, handheld steam cleaner handle chassis, robotic floor cleaner sensor enclosures, and coffee machine internal frame brackets. Published data for dishwasher detergent exposure in this glass bead filled PA12 configuration is limited; qualification requires 250 h immersion in 0.5 wt% alkaline detergent at 75 °C.
Commercial unmanned aerial vehicle programs use glass bead filled PA12 SLS powder for short-run airframe brackets where glass bead reinforcement raises modulus relative to unfilled PA12 while retaining dimensional accuracy for sensor bores. The powder is processed neat from sealed 20 kg bottles; the addition ratio for reclaimed material is capped at 40 wt% recycled to 60 wt% virgin because glass bead segregation under high-frequency vibration can produce anisotropic stiffness in thin mounting arms. A 60/40 blend is homogenized in a low-shear hopper mixer at 30 rpm for 10 min; high-shear mixing is prohibited because impingement fractures glass beads and reduces tensile modulus measured per ASTM D638-14.
Compliance for civil UAV airframe components references ASTM F3301-18a for small unmanned aircraft structural design in non-certified applications, AS9100D when supplied to defense programs, and ISO/ASTM 52900:2021 for additive manufacturing terminology. Material property data packages include ASTM D638-14 tensile, ISO 178 flexural, and ASTM D648-07 at 0.45 MPa. Downstream production on EOS P500 systems uses 100 μm layer thickness, build chamber temperature 169–175 °C, and nitrogen atmosphere with oxygen below 1.5 vol%. Scan parameters for thin-wall gussets use laser power 25–35 W and scan spacing 0.15–0.20 mm to limit edge overheating adjacent to glass bead-rich zones. After the build, the powder cake cools to below 70 °C over 4 h to reduce residual stress in unsupported spans. Bearing bores are post-machined with single-flute carbide reamers at 2,000–5,000 rpm under dry conditions; cutting fluid is avoided because PA12 swelling can close tolerances. Inserts are installed with cyanoacrylate adhesive or heat-set brass inserts at 190–210 °C. Terminal finished products include gimbal mounting plates, antenna mast brackets, LiDAR sensor housings, battery tray corner brackets, and motor arm reinforcement collars. These parts are typically painted or electroless nickel plated after sanding; paint adhesion requires flame plasma treatment at 30–60 W plasma discharge to raise surface energy above 45 dyn/cm.
Replacement of machined aluminum in non-implant medical device prototypes occurs only where design review has excluded body contact, tissue contact, or prolonged skin contact beyond 24 h. EOS PA 3200 GF enters this workflow as 100 wt% virgin powder to prevent cross-contamination from industrial production lines. No recycled powder is permitted in the build for proto-surgical device assemblies because recycled content can carry foreign particulates that compromise ISO 13485 cleanliness requirements. The glass bead filler also excludes the material from ISO 10993-1 biological evaluation; it is not considered biocompatible for final device use. The addition ratio is therefore 100/0 virgin/reclaimed, with a dedicated build chamber and sealed powder transport system to maintain particulate ≤ 10 μm in the unpacking environment.
Standards governing this segment include ISO 13485:2016 clause 7.5.2 for process validation, FDA 21 CFR 820.30 design controls for device prototypes used in verification, and ISO 10993-1:2018 for biological risk assessment to document exclusion. Cleanliness is validated per ISO 8573-1:2010 compressed air purity class 2.2.1 for the blasting station. Downstream production uses 100 μm layers with build chamber temperature 168–172 °C on EOS P396 or equivalent. After cooling to below 75 °C, parts are depowdered inside a downflow bench with HEPA filtration. Surface finishing includes glass bead blasting at 1.5–2.0 bar and ultrasonic cleaning in 70% isopropanol at 35 °C for 10 min to remove loose filler. Holes for locking screws are reamed to H7 tolerance with carbide tooling. Sterilization is not validated for PA 3200 GF; ethylene oxide and steam autoclave compatibility data are unavailable for this specific configuration. Terminal finished products include surgical instrument housing prototypes, medical monitor mount arms, training anatomical models with colored dye baths, and non-sterile device enclosure shells used for usability testing. No claim of implant or body contact is made.
Fabricating low-volume thermoforming tools and composite layup mandrels from PA 3200 GF addresses tooling lead-time reduction, but the thermal mass and gas permeability of the material impose process boundaries. The powder is used at 100 wt% as-received without filler adjustment. For large tooling builds, a 50/50 blend of virgin and reclaimed powder is accepted only when the tool surface is machined and sealed; the reclaimed fraction is screened to 150 μm and verified for bulk density per ASTM D1895-17. A bulk density drop below 0.65 g/cm³ in the reclaimed powder triggers an increase in virgin addition above 60 wt%.
Tooling contracts reference ISO 9001:2015, ISO 2768-2 for machined tool components, and ASTM D638-14 for material property verification. Composite layup tools destined for aerospace pre-production use require AS9100D first article inspection and FAI documentation per AS9102B. Downstream production uses 120 μm layer thickness on large-frame SLS systems such as EOS P770 or EOS P500, with build chamber temperature 169–174 °C. Large flat upper surfaces are built with a 45° checkerboard scan strategy to reduce curl. After depowdering, the tool body is heat treated in a convection oven at 150 °C for 2 h to relax residual stresses before CNC machining of vacuum holes and clamping slots. For vacuum forming, the tool surface is sealed with a two-component epoxy sealer to close surface porosity and prevent vacuum loss. For composite layup, the mandrel is wrapped with release film and breather cloth; autoclave cure is limited to 120 °C and 0.3 MPa because PA 3200 GF loses dimensional stability above 130 °C. Terminal finished products include vacuum forming tools for ABS/PMMA sheets up to 3.0 mm, joggle inspection fixtures for composite skins, layup mandrels for small UAV composite ducts, and drill fixture inserts for honeycomb panel assembly. Tool life under repeated thermoforming at 120 °C sheet temperature is typically validated for 500–2,000 cycles; published data for this exact PA 3200 GF configuration is limited.
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EOS PA 3200 GF is a glass bead-filled polyamide 12 powder formulated specifically for powder-bed fusion by laser sintering. The designation 3200 reflects the filler-induced tensile modulus: published datasheet values under ISO 527-2 list 3200 MPa in the X/Y build plane and 2500 MPa in the Z direction. Tensile strength is reported as 51 MPa in X/Y and 47 MPa in Z, while elongation at break declines to 9% in X/Y and 5% in Z. Flexural modulus is cited at 2900 MPa under ISO 178. These values place the material between unfilled PA 12 and short-glass-fibre-filled PA 12 in stiffness, with lower in-plane anisotropy than fibre-filled grades because the reinforcement is spherical. The trade-off is reduced impact ductility relative to neat PA 12, which restricts its use in snap-fit or high-deflection applications. Typical uses include inspection fixtures, robotic grippers, automotive brackets, fluid-flow housings, and dimensionally stable tooling components requiring higher stiffness than unfilled laser-sintered nylon.
Unfilled laser-sintering PA 12 grades such as EOS PA 2200 generally exhibit tensile modulus values near 1500–1700 MPa and elongation at break near 15–20% under ISO 527-2. Glass bead addition raises the modulus to 3200 MPa in the X/Y plane, but the strain-to-failure drops to 9% in the same plane. The glass bead filler also shifts the thermal deflection temperature under load; published HDT B values under ISO 75-2 are near 157 °C for the filled grade, compared with roughly 130–145 °C for unfilled PA 12. For design engineers, the practical distinction is that PA 3200 GF parts sustain higher static bending loads with less deflection, but they must be analysed with a lower allowable elongation. Sharp internal corners and thin snap-fit arms that would survive in unfilled PA 12 may fracture in the filled grade because the glass beads act as stress concentrations in the polyamide matrix. Larger radii, thicker ribs, and reduced local strain are required to compensate.
The spherical morphology of the glass beads produces more isotropic in-plane reinforcement than milled glass fibre or carbon fibre fillers. In high-aspect-ratio fibre-filled PA 12, tensile modulus along the preferential fibre orientation can exceed the transverse value substantially; by contrast, the X/Y tensile modulus of PA 3200 GF is approximately equal in both planar directions, while the Z direction remains lower because of interlayer fusion limits. This matters for parts with load paths that change direction within the build plane, such as brackets with curved ribs. The glass bead filler also gives the material a white to off-white appearance, unlike carbon-filled grades, and it is not electrically conductive.
Table 1 summarises selected representative values for EOS PA 3200 GF and a conventional unfilled PA 12 laser-sintering grade. These values are not absolute design allowables; they are influenced by build orientation, powder lot age, layer thickness, and conditioning. Tensile specimens should be built in flat, edge, and vertical orientations to capture anisotropy. For comparison under identical test methods, the unfilled reference values are drawn from typical manufacturer datasheets for laser-sintered PA 12.
| Property | Test method | PA 3200 GF | Unfilled PA 12 reference |
|---|---|---|---|
| Tensile modulus, X/Y | ISO 527-2 | 3200 MPa | 1500–1700 MPa |
| Tensile strength, X/Y | ISO 527-2 | 51 MPa | 45–48 MPa |
| Elongation at break, X/Y | ISO 527-2 | 9% | 15–20% |
| Flexural modulus | ISO 178 | 2900 MPa | 1300–1600 MPa |
| HDT B (0.45 MPa) | ISO 75-2 | 157 °C | 130–145 °C |
The table excludes notched impact values because the result is particularly sensitive to moisture conditioning and build orientation. Published data for this specific glass bead-filled configuration is limited; any impact-critical design should generate project-specific data under ISO 179-1/1eA using specimens conditioned at 23 °C and 50% RH according to ISO 291. The Z-direction tensile modulus of 2500 MPa is approximately 22% lower than the X/Y value, which is a direct consequence of incomplete polymer chain diffusion across layer boundaries during laser sintering. If the part will be loaded along the Z axis, the lower value must be used in finite-element analysis, not the commonly quoted X/Y figure.
EOS PA 3200 GF is processed on polymer laser-sintering systems such as the EOS P 396, which has a build envelope of 340 mm × 340 mm × 600 mm, and the EOS P 770, with a build envelope of 700 mm × 380 mm × 580 mm. On these platforms, the main process conflict is the narrow temperature range between adequate layer fusion and powder caking. The glass bead filler increases the thermal conductivity of the powder bed slightly and raises the melt viscosity of the polymer phase. As a result, the part bed temperature must be held close to the PA 12 crystallization onset to prevent edge curl in large flat parts. If the bed temperature is too low, residual thermal stress causes the first layers to shrink and lift from the build platform; if the bed temperature is too high, unfused powder becomes sticky, recoater drag rises, and layer deposition becomes non-uniform.
Moisture control is equally critical. Water absorbed by the polyamide matrix vaporises during laser exposure, producing gas porosity and surface roughness. Predrying at 80 °C for 8–12 h to reduce powder moisture below 0.1 wt% is standard practice for production cells. When ambient relative humidity exceeds 60%, the hopper should be purged with dry air or nitrogen to keep the powder from reconditioning. Batch-to-batch moisture variation is a common source of scattered mechanical properties; resin producers recommend verifying moisture with a Karl Fischer titrator or equivalent before starting a build. Powder storage containers should be closed immediately after transfer because the outer layer of a partially filled container equilibrates with ambient humidity more quickly than the bulk, hiding a moisture gradient.
Typical layer thickness for this powder is 0.12 mm. Changing to 0.10 mm or 0.15 mm alters the required laser energy density because the beam must melt through the full layer depth and reach the previous layer. Without compensating scan speed or laser power, a thicker layer can produce interlayer voids and low Z-direction tensile strength. On production-scale builds, the outer edges of the part bed are more prone to thermal gradients; edge parts may require a slightly higher bed temperature offset, but published machine-specific offset data for this material is limited and should be developed through build-height calibration patterns rather than copied from unfilled PA 12 profiles.
Dimensional stability is the most common reason for selecting EOS PA 3200 GF over an unfilled PA 12. The glass beads occupy a rigid volume fraction that does not contract during polymer crystallisation, so bulk solid-density change from powder to fused part is reduced. Long unsupported walls, thin ribs, and flat plates show less out-of-plane warpage after cooling. In jigs and fixtures that clamp production components, the higher modulus reduces deflection under clamping force; comparative tensile creep data under ISO 899 show that the glass-filled grade retains more of its initial stiffness under sustained room-temperature load. For elevated-temperature creep, users should test at the actual service temperature because PA 12 undergoes progressive stress relaxation above its glass transition temperature, which is below 60 °C. The glass beads delay but do not eliminate the viscoelastic response of the matrix.
The stiffness improvement carries a cost in toughness. Panel ribs, snap-fit latches, and mounting clips formed from the filled grade can fracture when loaded beyond the reduced elongation limit. If the application requires repeated assembly or high local strain, the design should be thickened, oriented to move the load into the X/Y plane, or switched to an unfilled PA 12 in areas where flexibility dominates. For hybrid assemblies, unfilled PA 12 clips inserted into PA 3200 GF housings can be used, but adhesive bonding and welding processes must be validated because the glass filler changes melt surface energy and reduces the fusion quality of ultrasonic welds.
Under long-term static loads, the glass beads act as hard inclusions that reduce the creep strain rate of the polyamide matrix. Robotic gripper end-effectors, inspection fixtures, and alignment tools take advantage of this behaviour because opening dimensions remain more stable over production shifts. In sliding wear, the glass-filled grade typically exhibits lower depth of material removal than unfilled PA 12 under dry-running conditions, but the result depends on counterface roughness and contact pressure. Qualification should follow ASTM G99 pin-on-disc testing or an application-specific wear test. PA 3200 GF is not electrically conductive, which makes it suitable for electronic assembly fixtures where carbon-filled grades could create conductive paths or particle shedding that compromises solder joints. Surface resistivity should be measured under IEC 62631-3-2 if electrostatic discharge control is required.
Thermal resistance also differentiates the product. The filled material can tolerate short-term temperature excursions near 150 °C in unstressed condition, but continuous load-bearing service above 90 °C requires creep and oxidative ageing validation. PA 12 is not suitable for applications that approach or exceed its melting point of approximately 176 °C under ISO 11357-3. For underhood brackets near engine heat, the material may be used only after thermal ageing tests confirm that tensile strength retention remains within the design margin. The thermal expansion of the glass-filled grade is lower than unfilled PA 12; published linear thermal expansion coefficients for glass-filled polyamide 12 are generally in the range of 80–100 µm/m·K, whereas unfilled PA 12 may exceed 100 µm/m·K. The exact value should be obtained from the lot certificate because glass bead content and orientation influence the coefficient.
Compliance documentation should be requested from the material manufacturer for each production lot. The polyamide 12 base is generally covered by REACH and may meet RoHS requirements for electrical and electronic equipment, but the glass bead filler and any heat stabilisers or flow agents must be disclosed for full material declaration. The standard datasheet does not specify food-contact or implantable use; biocompatibility evaluation under ISO 10993 and sterilisation validation are required before patient-contact deployment. Chemical compatibility with cutting fluids, lubricants, and cleaning detergents should be tested under the actual exposure regime. The glass filler does not eliminate the solvent sensitivity of the polyamide matrix, and strong acids, strong bases, or polar solvents can degrade the material over time. For applications that require UL 94 flammability ratings, a separate test is required because the glass-filled PA 12 does not possess a default V-0 rating.
