What is the Difference Between Delrin and Nylon?

Delrin and nylon are both versatile plastic materials with unique properties, making them suitable for various applications. Here are the main differences between the two:

1. Composition: Delrin, also known as polyoxymethylene (POM), is a thermoplastic created from polyoxymethylene. Nylon, on the other hand, is a synthetic thermoplastic made from a reaction between a dicarboxylic acid and an amide.
2. Moisture Absorption: Delrin has low moisture absorption rates, making it ideal for applications in wet environments. Nylon, however, has a higher coefficient of thermal expansion and moisture absorption rate, which can cause it to deform and warp.
3. Strength and Resilience: Delrin is known for its excellent strength, resilience, and dimensional stability, making it suitable for machined and precision parts like pumps, gears, bearings, rollers, bushings, and valve components. Nylon has higher abrasion resistance levels than Delrin, making it ideal for printing parts such as interlocking gears and components in high-temperature applications.
4. 3D Printing: Nylon is easier to work with in 3D printing projects, while Delrin requires extra work to be 3D printed.
5. Surface Finish: Delrin offers a smoother surface finish than nylon.
6. Thermal Properties: Delrin has a low coefficient of thermal expansion and high resistance to thermal deformation, making it retain its properties when exposed to temperature changes.

In summary, Delrin is ideal for applications requiring low moisture absorption and precision parts, while nylon is suitable for high-temperature and abrasion-resistant applications. When choosing between Delrin and nylon, consider your project's specific requirements and the material's properties to select the best option.

Comparative Table: Delrin vs Nylon

Here is a table comparing the differences between Delrin and Nylon:

Delrin and Nylon are both versatile materials, but they have different properties and are suitable for different applications. Delrin is known for its stiffness, low moisture absorption, and ease of fabrication, making it ideal for precision parts and components that require tight tolerances. Nylon, on the other hand, is more flexible and has higher elongation capabilities, making it suitable for applications that require deformation and higher temperature resistance. When choosing between Delrin and Nylon, consider the specific properties and requirements of your project to determine which material is more suitable.