Delrin (POM)
The engineering plastic with the highest dimensional precision and mechanical stability. The perfect alternative to metal for high-precision parts with demanding tolerances.
What is Delrin?
Technical properties of the material
Maximum Dimensional Stability
Virtually does not absorb moisture or deform.
High Hardness and Rigidity
For precision parts with high mechanical demands.
Low Coefficient of Friction
High wear resistance in friction applications.
Tolerances of ±0.01 mm with CNC
Excellent machinability for precision geometries.
Cyclic Fatigue Resistance
Ideal for parts in continuous motion.
Chemical Resistance
To solvents, oils and fuels.
Natural or Black (UV Resistant)
Black with stabilizers for outdoor or light exposure.
Electrical Insulator and Silent
Low mechanical noise in applications with movement.
Main Technical Data
Main material properties according to international standards:
| Density (g/cm³) | POM-C: 1.41 — POM-H: 1.42 ISO 1183 |
|---|---|
| Tensile Strength (MPa) | POM-C: 65 — POM-H: 67 ISO 527 |
| Elastic Modulus (MPa) | POM-C: 2,700 — POM-H: 3,100 ISO 527 |
| Elongation at Break (%) | POM-C: 35 — POM-H: 25 ISO 527 |
| Rockwell M Hardness | POM-C: 80 — POM-H: 85 ISO 2039 |
| Charpy Impact Resistance (kJ/m²) | 7 ISO 179 |
| Continuous Working Temperature (°C) | 90 — |
| Coefficient of Friction (μ) | 0.15–0.25 — |
| Moisture Absorption 24h (%) | 0.2 ISO 62 |
Sectors Where It Is Most Used
- Robotics and Industry 4.0.
- Automotive and transmissions.
- Medical and diagnostic equipment.
- Aeronautics and aerospace.
- Precision machinery and tooling.
Formats and Supply
We supply Delrin in the following standard formats, with the possibility of custom cutting and machining:
Delrin (POM) Sheets
Thicknesses from 5 to 100 mm. Standard formats 1000×2000 mm. Colors: natural (ivory) and black.
Delrin Round Rods
Diameters from 10 to 300 mm. Standard lengths from 500 to 3000 mm.
Square/Rectangular Rods
Sections from 10×10 mm to 200×200 mm.
POM Tubes
Outer diameters from 20 to 200 mm. Standard lengths from 500 to 1000 mm.
CNC Machined Parts
Manufacturing from technical drawing with high-precision tolerances.
Common Delrin Applications
Due to its precision and stability properties, Delrin is the preferred material in high dimensional accuracy applications.
Related Materials
Nylon
Mechanical strength and low friction coefficient.
More info Teflon (PTFE) — Greater chemical and thermal resistance
El plástico más resistente a la química y al calor extremo. Cuando ningún otro material resiste, el teflón da la solución.
More info
HDPE Polyethylene — More economical option for guides
Resistencia, ligereza y fácil mecanizado para aplicaciones industriales
More infoFrequently Asked Questions
Delrin (POM) has greater dimensional stability, does not absorb moisture and is more precise. Nylon has better impact resistance, greater self-lubrication capacity and can operate at higher temperature ranges. For high-precision parts, Delrin is preferable; for wear parts with impacts, nylon.
There are POM grades with food contact certification. Contact us to ensure you specify the correct grade for your application.
With quality CNC machining, Delrin allows tolerances of ±0.01 to ±0.05 mm depending on part geometry and required surface finish.
Black Delrin incorporates UV stabilizing additives, making it more suitable for outdoor applications or exposure to light. Natural (ivory) is the standard grade for indoor mechanical applications.
Yes. We provide material conformity certificates for applications that require them, such as medical equipment, aeronautics or defense.
What Those Who Already Trust Ferplast Say
Ferplast's Delrin is our trusted material for robotics gears. The machining precision is perfect and the service life of the parts far exceeds metal alternatives.
We machine bushings and guides in Delrin for our medical analysis equipment. Ferplast guarantees us certified material and parts with the exact tolerances we need.
Why choose Plásticos Ferplast?
Personalized service
We handle each project uniquely, adapting to the exact needs of each client.
Specialized advice
Over 70 years of experience enable us to recommend the optimal material and process for each application.
Minimum delivery times
We manufacture and supply in the shortest time possible, with express service available in 24h.
Maximum precision
State-of-the-art CNC technology for precise parts and impeccable finishes.