Family: LAPEX A
Base resin:Polyethersulphone (PESU)
General information
Compound based on Polyethersulphone (PESU). Glass fibres. Intrinsically flame retardant. Low smoke density and low toxicity index. Very high dimensional stability. PFAS-free product.
The products mentioned herein are not suitable for applications in contact with foodstuffs or for potable water transportation, or for toy manufacturing.
The products mentioned herein are not suitable for applications in the pharmaceutical, medical or dental sector.
Features
- - Intrinsically flame retardant
- - Narrow tolerances / Dimensional stability
Additives
- - Glass fibres
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Technical datasheets
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Technical characteristics
| Physical properties | Standard | Value | Measure Units |
|---|---|---|---|
| Density | ISO 1183 | 1.5 | g/cm³ |
| Linear shrinkage at moulding | |||
| Longitudinal (2.0mm/60MPa) | ISO 294-4 | 0.35 ÷ 0.50 | % |
| Transversal (2.0mm/60MPa) | ISO 294-4 | 0.70 ÷ 0.85 | % |
| Dimensional stability | --- | 72 | |
| Moisture absorption | |||
| Saturation, in air | ISO 62-4 | 0.6 | % |
| At saturation, in water | ISO 62-4 | 1.6 | % |
| Melt Flow Index (MFI) | ASTM D 1238 | 18.00@715°F/4.76lbs | g/10' |
| Mechanical properties | Standard | Value | Measure Units |
| CHARPY impact strength | |||
| Unnotched, at +73°F | ISO 179-1eU | 28 | ft.lb/in² |
| Notched, at +73°F | ISO 179-1eA | 4 | ft.lb/in² |
| Tensile elongation | |||
| At break (5 mm/min), 73°F | ISO 527 | 3.1 | % |
| At break (5 mm/min), 140°F | ISO 527 | 3.1 | % |
| At break (5 mm/min), 195°F | ISO 527 | 3.2 | % |
| At break (5 mm/min), 250°F | ISO 527 | 3.2 | % |
| At break (5 mm/min), 300°F | ISO 527 | 3.4 | % |
| Tensile strength | |||
| At break (5 mm/min), 73°F | ISO 527 | 18750 | psi |
| At break (5 mm/min), 140°F | ISO 527 | 16500 | psi |
| At break (5 mm/min), 195°F | ISO 527 | 15000 | psi |
| At break (5 mm/min), 250°F | ISO 527 | 13500 | psi |
| At break (5 mm/min), 300°F | ISO 527 | 11250 | psi |
| Elastic modulus | |||
| Tensile (1 mm/min), 73°F | ISO 527 | 945 | kpsi |
| Tensile (1 mm/min), 140°F | ISO 527 | 915 | kpsi |
| Tensile (1 mm/min), 195°F | ISO 527 | 900 | kpsi |
| Tensile (1 mm/min), 250°F | ISO 527 | 855 | kpsi |
| Tensile (1 mm/min), 300°F | ISO 527 | 780 | kpsi |
| Thermal properties | Standard | Value | Measure Units |
| Coefficient of linear thermal expansion (CLTE) | |||
| +30°C to +100°C (longitudinal) | ISO 11359 | 20 | × 10ˉ⁶ Kˉ¹ |
| +30°C a +100°C (transversal) | ISO 11359 | 50 | × 10ˉ⁶ Kˉ¹ |
| VICAT - Softening point | |||
| 50N (heating rate 120°C/h) | ISO 306 | 410 | °F |
| HDT - Heat Deflection Temperature | |||
| 0.45 MPa | ISO 75 | 419 | °F |
| 1.81 MPa | ISO 75 | 410 | °F |
| Thermal conductivity | |||
| in plane | ASTM E 1461-92 | 1.4 | W/mK |
| through plane | ASTM E 1461-92 | 1.5 | W/mK |
| Flammability | Standard | Value | Measure Units |
| Oxygen Index | ASTM D 2863 | 41 | % |
| 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 | 686 | V/mil |
| Melt Temperature | Standard | Value | Measure Units |
| Suggested melt temperature | --- | 660 ÷ 715 | °F |
| Mould Temperature | Standard | Value | Measure Units |
| Suggested mould temperature | --- | 285 ÷ 355 | °F |
Drying conditions (hot air dessiccator)
Predrying needed. At least 3 hours at 265 ÷ 340°F
Injection speed
Injection speed: medium. Setting an injection profile should improve moulding.
Hot runners
Usage of hot runner: possible