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LATER 4 G/20-V0

Family: LATER
Base resin:Polybutylene Terephthalate (PBT)
General information
Compound based on Polybutylene Terephthalate (PBT). Glass fibres. Flame retardant, UL94 V-0 class, with brominated flame retardants, free of PBB/PBDE.
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
  • - Flame retardant, with brominated flame retardants
Additives
  • - Glass fibres
Process types
  • - Injection moulding
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Technical datasheets
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  • PT
Technical characteristics
Physical properties Standard Value Measure Units
Density ISO 1183 1.53 g/cm³
Linear shrinkage at moulding
Longitudinal (2.0mm/60MPa) ISO 294-4 0,50 ÷ 0,80 %
Transversal (2.0mm/60MPa) ISO 294-4 1,10 ÷ 1,40 %
Dimensional stability --- 45
Moisture absorption
Saturation, in air ISO 62-4 0.16 %
Mechanical properties Standard Value Measure Units
CHARPY impact strength
Unnotched, at +23°C ISO 179-1eU 45 kJ/m²
Notched, at +23°C ISO 179-1eA 8 kJ/m²
Tensile elongation
At break (5 mm/min), 23°C ISO 527 2.2 %
At break (5 mm/min), 60°C ISO 527 8 %
At break (5 mm/min), 90°C ISO 527 8.5 %
At break (5 mm/min), 120°C ISO 527 9 %
At break (5 mm/min), 150°C ISO 527 12 %
Tensile strength
At break (5 mm/min), 23°C ISO 527 105 MPa
At break (5 mm/min), 60°C ISO 527 65 MPa
At break (5 mm/min), 90°C ISO 527 60 MPa
At break (5 mm/min), 120°C ISO 527 50 MPa
At break (5 mm/min), 150°C ISO 527 40 MPa
Elastic modulus
Tensile (1 mm/min), 23°C ISO 527 7500 MPa
Tensile (1 mm/min), 60°C ISO 527 5000 MPa
Tensile (1 mm/min), 90°C ISO 527 3000 MPa
Tensile (1 mm/min), 120°C ISO 527 2500 MPa
Tensile (1 mm/min), 150°C ISO 527 2000 MPa
Thermal properties Standard Value Measure Units
Coefficient of linear thermal expansion (CLTE)
+30°C to +100°C (longitudinal) ISO 11359 35 × 10⁶ K¹
+30°C a +100°C (transversal) ISO 11359 75 × 10⁶ K¹
VICAT - Softening point
50N (heating rate 120°C/h) ISO 306 200 °C
HDT - Heat Deflection Temperature
0.45 MPa ISO 75 215 °C
1.81 MPa ISO 75 190 °C
Thermal conductivity
in plane ASTM E 1461-92 0.2 W/mK
through plane ASTM E 1461-92 0.2 W/mK
Flammability Standard Value Measure Units
Oxygen Index ASTM D 2863 30 %
Flammability rating
3 mm thickness UL 94 V-0
1.5 mm thickness UL 94 V-0
0.75 mm thickness UL 94 V-0
GWFI - Glow Wire Flammability Index
2 mm thickness IEC 60695-2-12 960 °C
1 mm thickness IEC 60695-2-12 960 °C
Electrical properties Standard Value Measure Units
CTI - Comparative Tracking Index - solution A (without surfactant) IEC 60112 200 V
Electrical resistivity
Surface, dry ASTM D 257 1E12 ohm
Dielectric strength (short period)
2 mm thickness, 23°C, dry ASTM D 149 21 kV/mm
Melt Temperature Standard Value Measure Units
Suggested melt temperature --- 235 ÷ 250 °C
Mould Temperature Standard Value Measure Units
Suggested mould temperature --- 60 ÷ 90 °C
Drying conditions (hot air dessiccator)
Predrying needed. At least 3 hours at 90 ÷ 120°C
Injection speed
Injection speed: medium. Setting an injection profile should improve moulding.
Hot runners
Usage of hot runner: not suggested
Other information
  • Stress - strain curves - themal aging