DUPONT DELRIN 520MP POM Resin

Physical Properties

• Density: Measured by the ISO 1183 standard, it is 1.54 g/cc (0.0556 lb/in³), providing a basis for calculating material volume – mass relationships.
• Linear Mold Shrinkage: In the flow direction, it is 0.019 cm/cm; transversely, it is 0.015 cm/cm as per ISO 294 – 4 and 2577, which is crucial for mold design.
• Melt Flow: At 190 °C under a 2.16 kg load, it is 8.0 g/10 min according to ISO 1133, indicating its flowability during the molding process.

Polymer Properties:

1. Base Material: Polyoxymethylene (POM)
2. Key Features & Characteristics:
   • Enhanced Impact Resistance: This grade is specifically formulated with an impact modifier for improved toughness, making it more robust against sudden shocks and drops compared to standard POM grades.
   • Good Balance of Stiffness and Strength: It provides high tensile and flexural strength, giving parts a strong, rigid structure while retaining the flexibility to resist brittle fracture.
   • Excellent Processability: Its lower viscosity allows for a good balance between flow and mechanical strength, making it easier to process than higher-viscosity grades. 
   • Low Friction and Wear: Like other Delrin grades, this material has a naturally low coefficient of friction and excellent wear resistance, making it ideal for moving parts that slide or rotate against each other without external lubrication.
   • Dimensional Stability: With very low moisture absorption, parts molded from this resin maintain their precise dimensions over time, ensuring reliable performance in various environments.

Applications:

The combination of enhanced toughness, good mechanical properties, and excellent processability makes Delrin 520MP a versatile material for a wide range of durable and demanding applications.

• Automotive Components: Ideal for interior and under-the-hood parts that need to be both strong and impact-resistant, such as gearshift levers, seat components, and snap-fit assemblies.
• Industrial Components: Used for robust parts in machinery, power tool casings, and conveyor systems that are prone to accidental drops or impacts.
• Consumer Goods and Toys: Suitable for durable, moving parts in appliances, toys, and sports equipment that are subject to frequent use and rough handling.
• Precision Engineering: Employed in precision gears and mechanical linkages where a balance of strength and toughness is required.