BASF ULTRAMID B3WG5 PA6 Resin

BASF Ultramid B3WG5 is a 25% wollastonite-reinforced Polyamide 6 (PA6) resin produced by BASF. 

Physical Properties

  • Bulk Density: It measures 0.500 – 0.800 g/cc (0.0181 – 0.0289 lb/in³), indicating the material’s bulk mass per unit volume.
  • Density: Determined by ISO 1183 standard, the density is 1.32 g/cc (0.0477 lb/in³), a key physical property.
  • Moisture Absorption at Equilibrium: At 23°C and 50% RH (ISO 62), it’s 2.1 – 2.5%, 2.3% at 50% RH, and 7.1% at saturation.
  • Water Absorption at Saturation: Ranging from 6.8 – 7.4% as per ISO 62, showing water uptake when fully saturated.
  • Viscosity Measurement: Measured via ISO 307, the viscosity value is 140, crucial for processing understanding.
  • Linear Mold Shrinkage: With a value of 0.0035 cm/cm (0.0035 in/in) (restricted), relevant for molding processes.
  • Melt Flow: As per ISO 1133, at a load of 5.00 kg (11.0 lb) and a temperature of 275 °C (527 °F), the melt flow rate is 72.6 g/10 min.

Polymer Properties:

  • Base Material: Polyamide 6 (PA6)
  • Reinforcement: 25% Wollastonite
  • Modification Features:
    • Increases stiffness and hardness, providing good wear resistance.
    • Offers good chemical resistance, especially against certain acidic and alkaline substances.
    • Maintains good flowability during injection molding for complex part geometries.

Applications:

The balanced properties of Ultramid B3WG5—high strength, stiffness, and heat resistance—make it a versatile material for demanding technical applications across various industries.

  1. Automotive Components
    • This grade is a cornerstone in the automotive industry, particularly for functional and semi-structural parts located under the hood or in the vehicle’s chassis.
    • Its ability to withstand high temperatures and mechanical stress makes it ideal for replacing metal components, leading to significant weight reduction.
  2. Industrial and Mechanical Engineering
    • Ultramid B3WG5 is widely used for functional parts in machinery and industrial equipment.
    • Its high strength and stiffness ensure that components can resist wear and tear and maintain their integrity under operational loads.
  3. Electrical and Electronic Housings
    • While not a primary application, the material’s excellent mechanical properties and good electrical insulation make it suitable for a variety of robust electrical housings and connectors.
    • These applications require a material that can protect internal components from physical damage while also ensuring electrical safety.

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