Covestro Bayblend® T65 HI PC/ABS
Plastic Granules
Bayblend® T65 HI PC/ABS Resin
Bayblend T65 HI is a high-performance (PC+ABS) blend engineered for demanding automotive applications. With a Vicat softening temperature of 120°C, it delivers exceptional low-temperature impact strength and chemical resistance—perfect for parts needing toughness in harsh environments. Ideal for injection molding, extrusion, and electroplating.
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (MVR): 5.0 cm³/10 min (260 °C/5 kg, ISO 1133)
- Melt Viscosity: 300 Pa·s (1000 s⁻¹, 260 °C, ISO 11443-A)
- Molding Shrinkage, Parallel: 0.65 – 0.85% (150x105x3 mm³, 260 °C/MT 80 °C, ISO 2577)
- Molding Shrinkage, Normal: 0.65 – 0.85% (150x105x3 mm³, 260 °C/MT 80 °C, ISO 2577)
Mechanical Properties (23 °C/50% r.h.)
- Tensile Modulus: 2000 MPa (1 mm/min, ISO 527-1,-2)
- Yield Stress: 48 MPa (50 mm/min, ISO 527-1,-2)
- Yield Strain: 4.5% (50 mm/min, ISO 527-1,-2)
- Stress at Break: 46 MPa (50 mm/min, ISO 527-1,-2)
- Strain at Break: >50% (50 mm/min, ISO 527-1,-2)
- Izod Notched Impact Strength (23 °C): 48 kJ/m² (ISO 180/A)
- Izod Notched Impact Strength (-30 °C): 38 kJ/m² (ISO 180/A)
Thermal Properties
- Deflection Temperature (1.80 MPa): 99 °C (ISO 75-1,-2)
- Deflection Temperature (0.45 MPa): 120 °C (ISO 75-1,-2)
- Vicat Softening Temperature (50 N, 50 °C/h): 118 °C (ISO 306)
- Vicat Softening Temperature (50 N, 120 °C/h): 120 °C (ISO 306)
- Coefficient of Linear Thermal Expansion, Parallel: 0.9 × 10⁻⁴/K (23 to 55 °C, ISO 11359-1,-2)
- Coefficient of Linear Thermal Expansion, Normal: 0.95 × 10⁻⁴/K (23 to 55 °C, ISO 11359-1,-2)
- Burning Behavior: UL 94 HB (0.85 mm, UL 94)
Electrical Properties (23 °C/50% r.h.)
- Relative Permittivity (100 Hz): 3.0 (IEC 60250)
- Relative Permittivity (1 MHz): 2.9 (IEC 60250)
- Dissipation Factor (100 Hz): 25 × 10⁻⁴ (IEC 60250)
- Dissipation Factor (1 MHz): 85 × 10⁻⁴ (IEC 60250)
- Volume Resistivity: 1 × 10¹⁴ Ohm·m (IEC 62631-3-1)
- Surface Resistivity: 1 × 10¹⁶ Ohm (IEC 62631-3-2)
- Electrical Strength: 35 kV/mm (1 mm, IEC 60243-1)
- Comparative Tracking Index (CTI): 275 (Solution A, IEC 60112)
Other Properties (23 °C)
- Water Absorption (Saturation Value): 0.7% (Water at 23 °C, ISO 62)
- Water Absorption (Equilibrium Value): 0.2% (23 °C, 50% r.h., ISO 62)
- Density: 1110 kg/m³ (ISO 1183-1)
Processing and Drying Conditions
- Melt Temperature (Standard): 260 °C (ISO 294)
- Mold Temperature: 80 °C (ISO 294)
- Injection Velocity: 240 mm/s (ISO 294)
- Dry Air Drying Temperature: 95 – 110 °C
- Dry Air Drying Time: 4 hours
- Moisture Content (Max): ≤ 0.02%
- Barrel Temperature (Rear): 220 – 230 °C
- Barrel Temperature (Middle): 225 – 235 °C
- Barrel Temperature (Front): 230 – 240 °C
- Barrel Temperature (Nozzle): 255 – 265 °C
Features & Benefits
Extreme Temperature Resilience
It thrives from -30°C to 120°C, maintaining impact strength (38 kJ/m² at -30°C) and dimensional stability. Solves thermal warping in auto interiors and under-hood components.
Superior Chemical & Impact Resistance
It withstands fuels, oils, and cleaners while resisting cracks under stress (Izod notched: 48 kJ/m² at 23°C). Reduces failure rates in industrial and automotive parts.
Versatile Processing & Finishing
Optimized for injection molding (260°C melt temp), extrusion blow molding, and electroplating adhesion. Low shrinkage (0.65–0.85%) ensures precision in complex geometries.
Use & Applications
- Automotive Parts: Dashboards, grilles, mirror housings.
- Injection-Molded Components: Durable housings, connectors, and covers.
- Extrusion/Blow Molding: Tubes, ducts, and hollow profiles.
- Electroplated Parts: Chrome-finished trim and emblems.