DUPONT DELRIN 100ST POM Resin

Physical Properties

• Density: Measured per ISO 1183, the material’s density is 1.34 g/cc (0.0484 lb/in³), specifying mass per unit volume for basic characterization.
• Melt Density: At 205°C (401°F), melt density is 1.14 g/cc (0.0412 lb/in³), reflecting mass-volume properties in fluid state.
• Water Absorption: At 2.00 mm thickness (sim. ISO 62), water absorption is 0.90%, indicating moderate moisture retention under immersion.
• Moisture Absorption: At 2.00 mm thickness (sim. ISO 62), moisture absorption is 0.350%, showing lower uptake than water immersion.
• Linear Mold Shrinkage, Flow: By ISO 294-4/2577, flow-direction shrinkage is 0.0080 cm/cm (0.0080 in/in), critical for dimensional accuracy in molding.
• Linear Mold Shrinkage, Transverse: Per ISO 294-4/2577, transverse shrinkage is 0.011 cm/cm (0.011 in/in), highlighting directional contraction differences.
• Melt Flow: Volumetric rate is 1.7 cm³/10min; mass rate is 2.0 g/10min under 2.16 kg/190°C (ISO 1133), indicating lower processability for injection molding.

Polymer Properties:

1. Base Material: Polyoxymethylene (POM)
2. Key Features & Characteristics:
   
   • Super – toughened formulation provides exceptional impact resistance.
   • High viscosity contributes to good structural integrity and reduced flow during processing.
   • Exhibits excellent fatigue resistance for long – term, high – stress applications.
   • Displays outstanding creep resistance under continuous load.
   • Has natural self – lubricating properties for smooth operation in moving parts.

Applications:

The combination of superior impact resistance, high strength, and wear properties makes Delrin 100ST a top choice for demanding, safety-critical, and long-life applications where parts may be exposed to high-energy impacts.

• Automotive Components: Ideal for under-the-hood parts and interior components that need to withstand impacts, such as seat belt mechanisms, gearshift levers, and fuel caps.
• Industrial Components: Used for safety components, conveyor chain links, and power tool casings that require high durability and resistance to accidental drops or impacts.
• Consumer Goods and Toys: Suitable for durable parts in consumer products, especially toys, luggage shells, and sports equipment that are subject to rough handling and impacts.
• Pipe and Fittings: Can be used in fittings and connectors where there is a risk of impact or stress.

Processing Guidelines

Delrin 100ST is optimized for both injection molding and extrusion. Proper drying is crucial to ensure optimal processing and part quality.

• Drying: While not always required, pre-drying at 80°C for 2-4 hours is recommended, especially for long-term storage or high humidity conditions.
• Melt Temperature: 190-210°C
• Mold Temperature: 80-100°C