DUPONT DELRIN 900SP POM Resin
DUPONT DELRIN 900SP is a specialized polyoxymethylene (POM) homopolymer produced by DuPont, designed for applications requiring high stiffness and low friction.
Physical Properties
- Density: Measured according to the ISO 1183 standard, it is 1.41 g/cc (0.0509 lb/in³), which is fundamental for material volume – mass calculations.
- Melt Flow: As per ISO 1133, it is 23 g/10 min, indicating high flowability during the molding process, suitable for complex part production.
Polymer Properties:
- Base Material: Polyoxymethylene (POM)
- Key Features & Characteristics:
- Exceptional Stiffness and Strength: This material offers a robust and rigid structure, making it suitable for durable components that must withstand significant stress and maintain their shape under load.
- Low Friction and Wear: With a naturally low coefficient of friction, it is an ideal choice for moving parts that slide or rotate against each other, reducing the need for external lubrication and extending the service life of components.
- Good Dimensional Stability: It exhibits low moisture absorption, which ensures that parts maintain their precise dimensions over time, even in varying environmental conditions.
- High Flowability: The “SP” designation indicates a low-viscosity, high-flow formulation that allows for the easy molding of complex and intricate parts, which is ideal for high-precision applications.
Applications:
The combination of high stiffness, low friction, and exceptional processability makes DUPONT DELRIN 900SP suitable for a wide variety of intricate and high-precision products.
- Automotive Components: Ideal for under-the-hood parts and interior components, such as gears in power windows, dashboard controls, and fuel caps, that require high precision and durability.
- Industrial Components: Used for precision gears, bearing housings, conveyor chain links, and pump parts where low friction, wear resistance, and high strength are critical.
- Consumer Goods: Suitable for durable, moving parts in appliances and toys that are subject to frequent use.
- Precision Engineering: Employed for tiny, intricate parts in lock components and mechanical linkages where a clean fill and minimal cycle time are essential.
Processing Guidelines
DUPONT DELRIN 900SP is optimized for high-speed injection molding. To ensure optimal product quality, proper drying is crucial to prevent hydrolysis.
- Drying: While not always required, pre-drying at 80°C for 2-4 hours is recommended to remove any surface moisture, especially for long-term storage or high-humidity conditions.
- Melt Temperature: 190-210°C
- Mold Temperature: 80-100°C