| HS Code | 636544 |
| Base Resin | PA12 (Polyamide 12) |
| Filler Type | Glass beads |
| Filler Content | 30% |
| Density | 1.24 g/cm³ |
| Tensile Strength At Break | 45 MPa |
| Elongation At Break | 15% |
| Flexural Modulus | 2300 MPa |
| Charpy Impact Strength Notched | 4 kJ/m² |
| Heat Deflection Temperature At 1 8 Mpa | 65 °C |
| Melting Temperature | 178 °C |
| Water Absorption At Saturation | 1.2% |
| Volume Resistivity | 1E14 Ω·cm |
As an accredited LATI Latimass 82-02 D030 PA12 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | LATI Latimass 82-02 D030 PA12 is supplied in sealed, moisture-proof 25 kg polyethylene-lined paper bags for safe dry storage. |
| Container Loading (20′ FCL) | 20′ FCL container loading of LATI Latimass 82-02 D030 PA12, safely packed, secured, and protected for efficient maritime transport. |
| Shipping | LATI Latimass 82-02 D030 PA12 is a magnetizable polyamide 12 compound supplied as granules. It ships as non-hazardous plastic resin in sealed, moisture-resistant bags on pallets. Keep dry and avoid excessive heat during transit. Standard freight handling applies, with no dangerous goods restrictions. |
| Storage | Store in original sealed packaging in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep container tightly closed to prevent moisture absorption, as PA12 is hygroscopic. Recommended storage temperature is below 30°C. Use within shelf life to maintain performance. |
| Shelf Life | Shelf life is 2 years when stored in original, unopened packaging in a cool, dry place away from direct sunlight. |
During design of diagnostic X-ray shielding components, the attenuation requirement in the 40–150 kVp range determines whether a tungsten-filled polyamide 12 compound can replace lead sheet or cast lead alloys. Latimass 82-02 D030 PA12 is introduced as a ready-to-mould pellet with a nominal specific gravity of 3.0; the tungsten-based filler system provides photoelectric absorption in thin-walled injection-moulded sections while the PA12 matrix retains dimensional control in complex collimator geometries. For tube housing inserts and collimator aperture carriers, the material is processed at 100 wt% as supplied, without masterbatch letdown, when wall thickness remains below 6.0 mm; dilution below 60 wt% is not adopted for clinical shielding because attenuation per unit wall thickness declines and leads to thicker mouldings. Pellets are dried at 80 °C for 4–6 h to residual moisture 0.10 wt%, and melt temperature is maintained at 230–250 °C with a mould temperature of 40–80 °C. Injection moulding is performed on hardened tool steel with a bimetallic barrel and wear-protected screw; filler abrasion raises screw torque, and low injection speed with a profiled screw tip is used to avoid local over-heating. Weld lines caused by multiple gates or holes act as low-density interruptions; mould filling simulation should position knit lines away from central ray paths. Density verification follows ISO 1183-1:2019, and shielding assessment is referenced to IEC 60601-1-3:2008 and IEC 61331-1:2014; lead-equivalence acceptance for each shielding assembly is to be conducted by a recognised test laboratory because published attenuation data for this specific compound is limited. Terminal products include X-ray tube housing inserts, collimator aperture carriers, detector shielding cassettes, and portable X-ray unit shielding panels.
Radionuclide syringe shields for Tc-99m elution systems and PET suite manual injection carts operate under constraints of ergonomic mass, sterilisation chemical exposure, and photon energy. Latimass 82-02 D030 PA12 is fed neat at 100 wt% in single-cavity hot-runner moulds; when a lower part mass is required, a 70 wt% blend with unfilled PA12 is calculated to give a density near 1.9–2.0 g/cm³, but the letdown is limited to non-primary shielding areas. Drying at 80 °C for 6 h to 0.08 wt% moisture is required because trapped moisture in the PA12 phase in thick walls produces splay and reduces melt strength at the gate. Melt temperatures between 230 °C and 260 °C and mould temperatures of 60–80 °C are used; because the filler increases thermal conductivity, cooling time is shorter than unfilled PA12 at equal wall thickness, but ejection requires low clamp force machines with moulded-in draft angles above 0.5° to compensate for high filler surface friction. Batch-to-batch filler distribution requires cavity volume verification in syringe shield tooling to maintain shot consistency. Compliance references ISO 2919:2012 for sealed source classification and IAEA Safety Standards Series No. SSR-6 (Rev. 1) for transport package shielding; published tenth-value layer data for the specified compound is limited, so shielding acceptance for 511 keV annihilation photons must be verified by NIST XCOM-derived calculations or physical measurement. Terminal components include syringe shields, vial shields, L-block shields, and generator column housings. The material is not indicated for primary shielding of high-energy beta or 511 keV gamma sources without additional tungsten or lead encapsulation.
Within industrial radiographic testing enclosures, source guide tubes and gamma-projector collimator inserts demand materials that combine high photon attenuation with dimensional stability under frequent mechanical cycling. Latimass 82-02 D030 PA12 is used in secondary collimators, source guide tube exit fittings, and exposure device shielding inserts where metallic lead has been eliminated due to disposal and handling constraints. The compound is injected at 85–100 wt%; where snap-fit latching features are designed into the same part, a 15–20 wt% addition of unfilled PA12 is used to elevate elongation at break measured according to ASTM D638-14, at the cost of reduced density, which is compensated by a wall-thickness increase calculated from photon attenuation requirements. Processing on a 25 mm screw with L/D 20 and a low compression ratio of 2.0–2.5 is recommended; screw speeds above 100 min⁻¹ cause filler separation at the melt film and visible dark streaks. Mould temperature is set to 70 °C and packing pressure is held at 60–80 MPa for gate sealing. Compliance references ISO 3999:2004 for industrial gamma radiography apparatus performance and ISO 5579:2013 for radiographic testing practice. Operational limitation: continuous exposure to hydrocarbons in oil-field inspection environments above 60 °C should be evaluated because PA12 softens under load near its glass transition. Terminal products include gamma exposure device collimator inserts, source guide tube end fittings, and radiography cassette shielding bodies.
To support density targeting across the following balancing and weighting scenarios, binary blend densities are calculated from volume-additive mixing of 3.0 g/cm³ compounded material and 1.01 g/cm³ unfilled PA12.
| Mass fraction Latimass 82-02 D030 PA12 (wt%) | Mass fraction unfilled PA12 (wt%) | Calculated density (g/cm³) |
|---|---|---|
| 100 | 0 | 3.00 |
| 70 | 30 | 1.88 |
| 50 | 50 | 1.51 |
| 30 | 70 | 1.26 |
| 20 | 80 | 1.17 |
In drivetrain and electric motor assemblies, balancing masses are produced from Latimass 82-02 D030 PA12 when net-shape integration with elastomeric dampers or steel hubs is required. The formulation in drivetrain balancers is diluted to 50–70 wt% with unfilled PA12 to create density windows between 1.5 g/cm³ and 2.1 g/cm³; the exact ratio is fixed after modal analysis and component-level balance correction. Pre-drying to 0.10 wt% moisture at 80 °C for 4 h is mandatory; residual moisture greater than 0.15 wt% produces voids at the thicker hub overmould, observed as sink marks and torque decay in hot-hub pull-out tests. Insert moulding uses a vertical clamp rotary machine; the steel hub is preheated to 120–150 °C to reduce differential shrinkage at the insert interface. Components are referenced to ISO 1940-1:2003 balance quality grades, for example grade G 6.3 for general machinery; no single automotive material standard covers mass-tuned filled PA12, so OEM-specific thermal cycle and salt-spray test protocols apply as specified by ISO 9227:2022. Terminal parts include crankshaft pulley tuning inserts, propshaft balance rings, steering wheel mass dampers, and electric motor rotor end-plate correction masses. The material is not used for structural load transfer; mechanical retention is achieved by geometry or insert engagement, not adhesive bonding alone.
Because tungsten-filled PA12 allows injection-moulded net-shape mass tuning with a density near 3.0 g/cm³, it replaces lead-containing zinc alloys in racquet, golf, and archery components. The compound is processed neat at 100 wt% for insert weights below 5 g; for larger overmoulded masses from 5 g to 40 g, a 70 wt% blend with toughened PA12 is used to prevent brittle fracture during club head impact. Drying at 80 °C for 6 h and melt temperature of 230–250 °C are maintained; high filler loading causes gate blush if injection speed is excessive in small gates, so a valve-gated cold runner with gate diameter 1.0–1.5 mm is employed. Terminal products include golf club head weights, tennis racquet bumper weighting, archery stabilizer end masses, and fishing lure cavity weights. Compliance is anchored to REACH Regulation (EC) No 1907/2006 Annex XVII lead restrictions and RoHS Directive 2011/65/EU Annex II where electronic swing sensors are overmoulded; the grade contains no intentionally added lead and is not classified under lead-article restrictions.
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LATI Latimass 82-02 D030 PA12 is a polyamide 12-based mineral-filled injection moulding compound in the Latimass family, formulated around a PA12 matrix modified with an inorganic particulate filler system. The suffix D030 is read in Lati grade nomenclature as a nominal 30 % by mass filler loading; the 82-02 prefix identifies the base PA12 matrix. The material identity follows ISO 1043-1:2011, with PA12 designating polydodecanoamide. It is supplied for conversion by injection moulding and profile extrusion where increased specific gravity, mass balancing, vibration damping and dimensional stability are required. The exact filler mineralogy, particle size distribution and certified mechanical data for this configuration should be obtained from the LATI technical datasheet, because published data specific to this exact grade is limited.
Compared with equivalent mineral-filled PA6 or PA66 grades, the PA12 matrix reduces equilibrium moisture regain by a factor of approximately 4 to 5. Unfilled PA6 typically absorbs 9.5 % to 10.0 % water by mass under ISO 62:2008 immersion at 23 °C, and unfilled PA66 absorbs 8.5 % to 9.0 %, whereas unfilled PA12 is commonly reported at 1.5 % to 2.0 %. The incorporation of 30 % by mass inorganic filler displaces hygroscopic matrix volume and lowers the aggregate water uptake further, reducing swell and post-moulding dimensional drift in humid service. This is significant for close-tolerance counterweights and sensor carriers where moisture-induced expansion in PA6 could exceed 0.2 % in service. Differential scanning calorimetry under ISO 11357-3:2018 records the PA12 crystalline melt peak between 172 °C and 180 °C, which keeps processing temperatures below those of PA66 and broadens the window for co-moulding heat-sensitive inserts. The lower amide group density of the PA12 backbone also preserves ductility at sub-ambient temperatures and improves resistance to non-polar fluids.
Predrying is mandatory. The compound should be dried in a desiccant dryer at 70 °C to 80 °C for 4 h to 8 h until residual moisture falls below 0.10 % by mass, determined by ISO 15512:2019 Karl Fischer titration. Hopper residence times above 30 min without dry air supply should be avoided. Melt temperatures for filled PA12 are conventionally set in the range 220 °C to 250 °C at the nozzle; barrel profiles from feed to nozzle of 210 °C, 230 °C, 240 °C, 245 °C are typical starting points. Mould temperatures between 40 °C and 80 °C balance surface finish and crystallization rate. Because the 30 % filler fraction increases melt viscosity and shear heating, screw speed on a 40 mm screw should be limited to 80 rpm to 150 rpm until the exact melt flow number is known. Injection machines with closed-loop hydraulic or electric control should be used, and cavity pressure transducers are recommended for holding-pressure optimisation. On production-scale lines, batch-to-batch filler particle size variation can shift melt flow rate by 10 % under ISO 1133-1:2022; incoming lots should be tested against an agreed melt viscosity specification before release to moulding.
Melt residence and venting are also process-critical. At melt temperatures above 260 °C, polyamide 12 undergoes chain scission and discoloration; residence time in the barrel should be kept below 15 min, and shot size should exceed 40 % of barrel capacity to avoid prolonged recycling of degraded melt. In hot-runner systems, internal runner volumes should be computed against shot capacity so that melt residence does not exceed 12 min at 240 °C. The filled melt has increased apparent viscosity, and inadequate venting produces burn marks at flow-front convergence points. Vent groove depth should be 0.010 mm to 0.030 mm for polyamide melts, with land length near 0.5 mm and width near 3 mm. Vacuum venting may be required for sections thicker than 3 mm or for ribs with high flow-length ratios.
The filled PA12 architecture offers a balance of density increase and low water uptake; use cases include mass-balancing weights in rotating assemblies, inertial counterweights, acoustic masses, and structural shrouds where metal inserts are undesirable. Unfilled PA12 has an as-moulded density of 1.01 g/cm³ to 1.03 g/cm³ under ISO 1183-1:2019, while a 30 % mineral-filled PA12 compound typically shifts the density envelope toward 1.45 g/cm³ to 1.65 g/cm³, depending on filler density; the certified value for this exact grade must be confirmed. This density rise permits part mass tuning without secondary metal components, eliminating assembly steps and galvanic corrosion risks. The coefficient of linear thermal expansion decreases from roughly 100 × 10⁻⁶ K⁻¹ for unfilled PA12 to 50 × 10⁻⁶ K⁻¹ to 80 × 10⁻⁶ K⁻¹ for filled versions under ISO 11359-2:2021. Sub-ambient performance is matrix-dependent; PA12 retains a lower glass transition temperature than PA6 or PA66, typically in the 45 °C to 55 °C region for dry material, which preserves compliance at low temperatures. The filled grade is therefore considered for outdoor power tool housings and appliance counterweights where cold impact resistance is part of the specification.
Mineral particle aspect ratio influences flow pattern and shrinkage anisotropy. Particulate filler at 30 % mass loading produces lower anisotropic mould shrinkage than glass fibre reinforcement; shrinkage values may fall between 0.8 % and 1.4 % depending on wall thickness and gate geometry, as measured by ISO 294-4:2018. The less directional shrinkage is an advantage for round bosses, flat covers and gear-like geometries where radial runout must be controlled. Hard mineral fillers raise screw and barrel wear; processing should use bimetallic barrels, nitride-treated or hard-chrome screws, and wear-resistant reverse-flow check rings. The higher melt viscosity at shear rates near 100 s⁻¹ increases melt pressure at the screw tip; typical hydraulic injection pressures for filled PA12 components are 800 bar to 1,200 bar, depending on flow length-to-wall thickness ratio. On production-scale injection moulding lines with general-purpose check-ring assemblies, mineral-filled PA12 compounds at 30 % mass loading have shown premature screw-tip pressure loss when non-return ring seating is incomplete; this can produce part mass variation of 0.5 % to 1.5 % unless shot size is optimized and screw decompression is limited to 2 mm to 3 mm. Hot-runner gates smaller than 0.8 mm without shear-controlled melt temperature may cause filler accumulation and pressure instability.
Mechanical response is shifted by the filler. Where unfilled PA12 typically exhibits tensile modulus near 1.3 GPa to 1.5 GPa under ISO 527-1/2:2012, a 30 % mineral-filled PA12 class usually shows higher flexural modulus and lower elongation at break, typically moving from ductile behaviour with tensile elongation above 50 % to semi-brittle failure below 10 % to 15 %. Notched impact strength under ISO 179-1:2010 tends to fall relative to unfilled PA12; design allowables should use ISO 527-2 tensile curves and ISO 178:2019 flexural data generated on the final production orientation. Hardness measured by ISO 868:2003 increases with mineral loading, and creep under ISO 899-1:2017 is reduced compared with unfilled matrix at the same stress because filler restricts chain mobility. These are class-typical trends, not certified values for this exact code.
The main difference is filler geometry. Glass-fibre-reinforced PA12 at similar or lower filler loading generates high tensile strength and modulus along the flow direction but produces pronounced orientation, warpage, and surface roughness. Latimass 82-02 D030 PA12, with a particulate mineral system, is intended for isotropic shrinkage, lower warpage in flat parts, higher density, and improved dimensional stability, rather than maximum tensile strength. This makes it a candidate for circular or planar parts that must remain flat after moulding and for components where fibre orientation would generate radial runout. It also reduces the abrasive effect of glass fibre on screw and hot-runner surfaces, though mineral fillers are not benign and still require hardened tooling. Chemical resistance follows the PA12 matrix; resistance to aliphatic hydrocarbons, oils, greases, and short-chain alcohols is generally good, while strong mineral acids and polar solvents can degrade the polyamide backbone. The material should be compared with metal-filled engineering plastics only after confirming the filler type on the datasheet, because some high-density grades use barium sulphate or tungsten-loaded systems that differ in X-ray shielding and surface hardness.
The operational boundaries are set by the PA12 matrix and filler content. Drying is required at ambient relative humidity above 60 % and whenever reground material is reintroduced. Sustained service above 120 °C in air may lead to oxidative degradation unless antioxidant stabilization is confirmed for the grade. Avoid combination with strong oxidising acids and high-temperature hydrolytic conditions in aqueous service above 80 °C unless long-term immersion testing has been performed under ISO 175:2010. Compliance status under EU 1907/2006 REACH and EU 2011/65/EU RoHS should be documented by the upstream supplier for the specific filler lot. No blanket statement of food-contact status is made under EU 10/2011 unless specified in writing by LATI. Published data for this specific configuration is limited; therefore, tensile, impact, density, and shrinkage values used in finite element models must be validated against a certified LATI datasheet.
