PA66 BASF A3EG7 Resin
PA66 BASF A3EG7 Resin
Material Introduction: PA66 BASF A3EG7 (Germany BASF) is a high‑performance 35% glass‑fiber‑reinforced PA66 engineering plastic. It delivers ultra‑high strength, ultra‑high rigidity, excellent heat resistance and dimensional stability, together with favorable electrical‑insulation performance and HB‑grade flame retardancy. Its inherent water‑absorption property will affect dimensional stability and partial performances (large performance difference between dry and conditioned state); strict drying is mandatory before processing.
Main Applications
Electronic‑electrical industry: Lamp‑holder housings, cooling fans, connectors, relay housings, electrical‑wire insulation materials and other electrical‑insulation components.
Automotive industry: Water reservoirs for automotive cooling systems, engine hoods, oil pipelines, oil reservoirs and automotive electronic components.
Mechanical parts / Industrial fittings: Mechanical components, housings, pump‑valve parts, precision structural parts, bearing cages and industrial gears.
Other fields: Insulation profiles for aluminum window frames and containers.
Performance Parameters
| Performance Category | Test Condition / Standard | Unit | Typical Value | Remarks & Interpretation |
|---|---|---|---|---|
| Physical Properties | ||||
| Density | ISO 1183 | g/cm³ | 1.41 | 35% glass‑fiber reinforced grade |
| Water Absorption (Saturated,23℃) | ISO 62 | % | 5.0 | ‑ |
| Equilibrium Water Absorption (23℃,50%RH) | ISO 62 | % | 1.6 | ‑ |
| MVR | 275℃/5.0 kg, ISO 1133 | cm³/10min | 30‑40 | ‑ |
| Molding Shrinkage (Flow Direction) | ISO 294‑4, ISO 2577 | % | 0.30‑0.50 | ‑ |
| Molding Shrinkage (Transverse Direction) | ISO 294‑4, ISO 2577 | % | 1.0 | ‑ |
| Mechanical Properties | ||||
| Tensile Modulus (23℃) | ISO 527‑2 | MPa | 11500(dry) / 8500(conditioned) | Obvious difference between dry & wet state |
| Tensile Strength at Break (23℃) | ISO 527‑2 | MPa | 190‑210(dry) / 150(conditioned) | ‑ |
| Elongation at Break (23℃) | ISO 527‑2 | % | 3.0(dry) / 5.0(conditioned) | ‑ |
| Flexural Modulus (23℃) | ISO 178 | MPa | 9860‑10000(dry) / 8480(conditioned) | ‑ |
| Flexural Strength (23℃) | ISO 178 | MPa | 300(dry) / 240(conditioned) | ‑ |
| Charpy Notched Impact Strength (23℃) | ISO 179/1eA | kJ/m² | 14(dry) / 22(conditioned) | ‑ |
| Charpy Un‑notched Impact Strength (23℃) | ISO 179/1eU | kJ/m² | 95(dry) / 107(conditioned) | ‑ |
| Thermal Properties | ||||
| HDT @1.8 MPa | ISO 75‑1/-2 | °C | 250 | ‑ |
| HDT @0.45 MPa | ISO 75‑1/-2 | °C | 250‑260 | ‑ |
| Melting Point | ISO 11357‑1/-3 / ISO 3146 | °C | 260 | ‑ |
| Linear Thermal Expansion Coefficient (Flow) | ISO 11359‑1/-2 | 10⁻⁶/K | 22(dry) | ‑ |
| Linear Thermal Expansion Coefficient (Transverse) | ISO 11359‑1/-2 | 10⁻⁶/K | 93(dry) | ‑ |
| Electrical Properties | ||||
| Volume Resistivity | IEC 62631‑3‑1 | Ω·m | 10¹³(dry) / 10¹⁰(conditioned) | ‑ |
| Dielectric Strength | IEC 60243‑1 | kV/mm | 39(dry) / 37(conditioned) | ‑ |
| Relative Permittivity (100Hz) | IEC 62631‑2‑1 | ‑ | 4.3(dry) / 10.1(conditioned) | ‑ |
| CTI Comparative Tracking Index | IEC 60112 | ‑ | 550 | ‑ |
| Flammability | ||||
| UL94 Rating (0.8 mm /1.6 mm) | ‑ | ‑ | HB | Non‑flame‑retardant grade |
| Limiting Oxygen Index (LOI) | ISO 4589‑1/-2 | % | 24 | ‑ |
Injection Molding Parameters
| Processing Item | Recommended Range / Condition | Notes & Explanations |
|---|---|---|
| Drying Treatment | Hot‑air drying at 80 ℃ for at least 4 h. Extend drying time or adopt high‑temperature vacuum drying under high‑humidity environment. | Critical operation. Control moisture content ≤0.15% to avoid hydrolysis‑induced bubbles, silver streaks and mechanical‑property deterioration. Use immediately after drying or seal and keep warm properly. |
| Melt Temperature | General range:280‑300 ℃, recommended 290 ℃. | Fine‑tune according to equipment and part geometry. Avoid temperature＞310 ℃ or long residence‑time to prevent material degradation. |
| Mold Temperature | General range:80‑90 ℃, recommended 80 ℃. Higher mold temperature (90‑100 ℃) may deliver better performance. | Proper mold temperature ensures good crystallinity, surface gloss and mechanical performances. |
| Injection Pressure | 750‑1250 bar. | Adjust per product & mold design. Appropriately increase pressure for glass‑fiber‑reinforced grade. |
| Injection Speed | High‑speed injection (200 mm/s), moderately reduce speed for reinforced materials. | Fast filling is beneficial; good mold venting is required to prevent scorching. |
| Screw Speed | ‑ | Avoid excessive shear heat; general PA66:30‑60 rpm. |
| Runner & Gate | Gate bore ≥0.5*t (t = part wall thickness). Hot‑runner gate size shall be smaller than conventional runner. Minimum diameter for submarine gate:0.75 mm. | Nylon solidifies rapidly; gate location and size are critical for filling. |
| Holding Time | 10 min (thermoplastics). | Depends on part wall thickness. |
| Shutdown Notice | ‑ | Turn off heating for long‑term shutdown. Clean barrel after production interruption or completion to prevent carbonization of residual PA66. |
Disclaimer: All above data is for reference only.
