Family: LAPEX A
Base resin:Polyethersulphone (PESU)
General information
Product made of Polyethersulphone (PESU). Unfilled. Intrinsically flame retardant. PFAS-free product.
Versions of product mentioned herein are suitable for applications in contact with foodstuffs or for toy manufacturing. Nevertheless, manufactured parts have to be verified according to the specific directives.
The products mentioned herein are not suitable for applications in the pharmaceutical, medical or dental sector.
Features
- - Intrinsically flame retardant
Project challenges
- - High temperature usage
- - Flame retardancy halogen free
- - Chemical stability
- - Wear and friction
Additives
- - Unfilled
Process types
- - Injection moulding
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Technical datasheets
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- UK
- US
- DE
- FR
- ES
- PT
Technical characteristics
| Physical properties | Standard | Value | Measure Units |
|---|---|---|---|
| Density | ISO 1183 | 1.37 | g/cm³ |
| Linear shrinkage at moulding | |||
| Longitudinal (2.0mm/60MPa) | ISO 294-4 | 0.70 ÷ 0.90 | % |
| Transversal (2.0mm/60MPa) | ISO 294-4 | 0.75 ÷ 0.95 | % |
| Dimensional stability | --- | 81 | |
| Moisture absorption | |||
| Saturation, in air | ISO 62-4 | 0.8 | % |
| At saturation, in water | ISO 62-4 | 2.2 | % |
| Melt Flow Index (MFI) | ASTM D 1238 | 30.00@715°F/4.76lbs | g/10' |
| Mechanical properties | Standard | Value | Measure Units |
| CHARPY impact strength | |||
| Notched, at +73°F | ISO 179-1eA | 3 | ft.lb/in² |
| Notched, at -4°F | ISO 179-1eA | 1.2 | ft.lb/in² |
| Tensile elongation | |||
| At yield (5 mm/min), 73°F | ISO 527 | 6.3 | % |
| At yield (5 mm/min), 140°F | ISO 527 | 5.5 | % |
| At yield (5 mm/min), 195°F | ISO 527 | 4.8 | % |
| At yield (5 mm/min), 250°F | ISO 527 | 4.3 | % |
| At yield (5 mm/min), 300°F | ISO 527 | 3.8 | % |
| Tensile strength | |||
| At yield (5 mm/min), 73°F | ISO 527 | 12000 | psi |
| At yield (5 mm/min), 140°F | ISO 527 | 10500 | psi |
| At yield (5 mm/min), 195°F | ISO 527 | 10500 | psi |
| At yield (5 mm/min), 250°F | ISO 527 | 9000 | psi |
| At yield (5 mm/min), 300°F | ISO 527 | 6750 | psi |
| Elastic modulus | |||
| Tensile (1 mm/min), 73°F | ISO 527 | 420 | kpsi |
| Tensile (1 mm/min), 140°F | ISO 527 | 390 | kpsi |
| Tensile (1 mm/min), 195°F | ISO 527 | 360 | kpsi |
| Tensile (1 mm/min), 250°F | ISO 527 | 330 | kpsi |
| Tensile (1 mm/min), 300°F | ISO 527 | 285 | kpsi |
| Thermal properties | Standard | Value | Measure Units |
| Coefficient of linear thermal expansion (CLTE) | |||
| +30°C to +100°C (longitudinal) | ISO 11359 | 50 | × 10ˉ⁶ Kˉ¹ |
| +30°C a +100°C (transversal) | ISO 11359 | 45 | × 10ˉ⁶ Kˉ¹ |
| VICAT - Softening point | |||
| 50N (heating rate 120°C/h) | ISO 306 | 419 | °F |
| HDT - Heat Deflection Temperature | |||
| 0.45 MPa | ISO 75 | 410 | °F |
| 1.81 MPa | ISO 75 | 383 | °F |
| Thermal conductivity | |||
| in plane | ASTM E 1461-92 | 1.5 | W/mK |
| through plane | ASTM E 1461-92 | 1.5 | W/mK |
| Flammability | Standard | Value | Measure Units |
| Oxygen Index | ASTM D 2863 | 39 | % |
| Flammability rating | |||
| 3 mm thickness | UL 94 | V-0 | |
| 1.5 mm thickness | UL 94 | V-0 | |
| Electrical properties | Standard | Value | Measure Units |
| CTI - Comparative Tracking Index - solution A (without surfactant) | IEC 60112 | 125 | V |
| Electrical resistivity | |||
| Surface, dry | ASTM D 257 / D 4496 | 1E12 | ohm |
| Dielectric strength (short period) | |||
| 2 mm thickness, 23°C, dry | ASTM D 149 | 635 | V/mil |
| Melt Temperature | Standard | Value | Measure Units |
| Suggested melt temperature | --- | 645 ÷ 700 | °F |
| Mould Temperature | Standard | Value | Measure Units |
| Suggested mould temperature | --- | 285 ÷ 330 | °F |
Drying conditions (hot air dessiccator)
Predrying needed. At least 3 hours at 265 ÷ 340°F
Injection speed
Injection speed: low to medium. Setting an injection profile should improve moulding.
Hot runners
Usage of hot runner: possible