BASF Ultraform S1320 0021 UNC POM Resin

Physical Properties

• Density: Measured according to ISO 1183, the density is 1.41 g/cc (0.0509 lb/in³)
• Water Absorption: As per ISO 62, it is 0.80 %. Water absorption can affect the material’s appearance, dimensional stability.
• Moisture Absorption at Equilibrium: Based on ISO 62, at 23°C and 50% RH, it is 0.20 %. This value helps in predicting the material’s behavior in different environmental conditions during storage and use.
• Melt Flow: Tested in accordance with ISO 1133, at 190 °C (374 °F) under a 2.16 kg (4.76 lb) load, the melt flow rate is 12.9 g/10 min. 

Polymer Properties:

1. Base Material: Polyoxymethylene (POM)
2. Modification Features:
   
   • Easy – flowing nature for smooth injection molding process
   • Rapidly freezing characteristic for efficient production cycles
   • Enhanced stiffness to maintain structural integrity
   • Improved heat distortion resistance for high – temperature applications
   • Highly stabilized to resist aggressive fuels like hot diesel fuel

Applications:

Given its robust property profile, BASF Ultraform® S1320 0021 UNC is used in a variety of demanding applications, particularly in the automotive and industrial sectors.

• Automotive Fuel Systems: This is a primary application area due to its exceptional fuel resistance. Specific examples include:
  • Fuel pump components: Housings, impellers, and valves that are in constant contact with fuel.
  • Fuel tank components: Flanges, tank caps, and valves.
  • Connectors and clips within the fuel line system. The ability to withstand hot diesel and biofuels makes it a reliable choice for modern diesel engines and vehicles using alternative fuels.
• Industrial Applications: Its combination of strength, low friction, and wear resistance makes it suitable for:
  • Gears and Cams: The high stiffness and good sliding properties allow for the creation of durable, self-lubricating moving parts.
  • Bearings and Bushings: Where low friction and good wear resistance are required.
  • Springs and Elastic Elements: The material has good resilience and a high yield point, making it suitable for snap-fit connectors, clips, and other components that require elastic behavior.
• Precision and Thin-Walled Moldings: Due to its excellent flow properties, it can be used to produce small, intricate, or thin-walled parts that are difficult to mold with other materials. This includes:
  • Small appliance components
  • Housing parts for electronic devices
  • Complex connectors

In summary, Ultraform® S1320 0021 UNC is a high-performance engineering plastic designed for applications that demand high stiffness, dimensional stability, and, most importantly, outstanding resistance to fuels and chemicals, making it an ideal material for challenging automotive and industrial components.