Sabic VALOX™ FR PBT 553
Plastic Granules
Valox FR PBT 553 Flame Retardant Grade
VALOX™ FR Resin 553 is a 30% glass-filled, flame-retardant PBT/PC alloy. It offers excellent chemical resistance, superior dimensional stability with low warpage, and top-tier UL94 V-0 & 5VA flammability ratings for demanding applications.
Typical property data
Physical Properties
Density: 1.53 g/cm³ (ISO 1183)
Mechanical Properties
- Tensile Strength: 55 MPa (ISO 527)
- Tensile Modulus: 3600 MPa (ISO 527)
- Flexural Strength: 90 MPa (ISO 178)
- Flexural Modulus: 3600 MPa (ISO 178)
- Elongation at Break: 2.5% (ISO 527)
Impact Properties
- Charpy Notched Impact Strength (23°C): 8 kJ/m² (ISO 179/1eA)
- Charpy Notched Impact Strength (-30°C): 6 kJ/m² (ISO 179/1eA)
Thermal Properties
- Glass Transition Temperature (Tg): N/A
- Melting Temperature (Tm): 225°C (ISO 11357)
- Heat Deflection Temperature (HDT, 1.8 MPa): 170°C (ISO 75-2/A)
- Coefficient of Linear Thermal Expansion (CLTE): 0.3 x 10⁻⁴ /°C (ISO 11359)
Electrical Properties
- Comparative Tracking Index (CTI): 600 V (IEC 60112)
- Dielectric Strength: 20 kV/mm (IEC 60243-1)
- Volume Resistivity: 1 x 10¹⁵ Ω·cm (IEC 60093)
- Dielectric Constant (1 MHz): 3.4 (IEC 60250)
Flame Characteristics
Flammability Rating: UL94 V-0 (Thickness: 0.75 mm)
Injection Molding
- Melt Temperature: 240–260°C
- Mold Temperature: 80–120°C
- Drying Temperature: 110°C
- Drying Time: 4–6 hours
Features & Benefits
Superior Flame Retardant Performance
VALOX 553 achieves UL94 V-0 at 0.86mm and 5VA at 2.3mm, ensuring critical safety compliance and enhanced product integrity in electrical and electronic components.
Excellent Dimensional Stability
Its 30% glass-fiber reinforcement minimizes shrinkage and warpage, guaranteeing precise part geometry and long-term reliability in tightly toleranced assemblies.
High Heat & Chemical Resistance
With a Heat Deflection Temperature of 160°C and excellent chemical resistance, VALOX 553 withstands harsh operating environments and extends product service life.
Use & Application
- Appliance Handles and Housings
- Spotlights and Electrical Enclosures
- Electric Motor Components
- Pump Housings and Impellers