🧩 POM+GF20 – Polyacetal with 20% Glass Fiber
(A technical Polyoxymethylene (POM) composite reinforced with 20% glass fiber, designed for applications requiring high stiffness, mechanical strength, and superior dimensional stability.)
🔹 What is POM+GF20
POM+GF20 offers a significant boost in rigidity and torsional strength compared to pure POM, while maintaining the characteristic self-lubrication and low friction coefficient. The 20% glass fiber reinforcement cuts shrinkage by up to 50% and doubles deformation resistance. It is the preferred choice for technical gears, fluid connectors, and sensor housings that operate in demanding mechanical environments.
🔧 Composition
| Component | Typical Ratio | Role |
| Polyacetal (POM) | ≈ 80 % | Low-friction and chemically stable matrix |
| Glass Fiber (E-Glass) | ≈ 20 % | Mechanical and dimensional reinforcement |
| Additives | < 2 % | Oxidation protection and color stability |
🚗 Where POM+GF20 is used in the automotive industry
| Component | Example parts | Observations |
| Gears / Actuators | VW, Bosch | High rigidity, low friction |
| Fluid Fittings / Joints | Renault, Ford | Dimensional stability, chemical resistance |
| Brackets / Guides | Peugeot, Dacia | Lightweight, high durability |
| ABS / Sensor Parts | Toyota, Opel | Constant rigidity and precision |
🔧 Welding Temperature and Methods
| Method | Optimal Temp | Observations |
| Hot Air | 250 – 270 °C | Easy to weld, uniform glossy melting |
| Heat Plate (Mirror) | 255 – 265 °C | Ideal – Clean bond with flat surface |
| Plastic Extrusion | 260 °C | Recommended – use POM or POM-GF rod |
🔩 Material Compatibility
- ✅ Compatible: POM, POM-GF, POM-H.
- ⚠️ Partially Compatible: POM+CF, POM+PTFE (requires temperature control).
- ❌ Incompatible: PA, PP, PE, ABS (chemically and thermally incompatible).
💡 ReplastMD Recommendation: Weld at ~260 °C using POM-GF20 or compatible POM rods. This material offers an ideal balance between stiffness and stability for mechanical parts under constant load.
🧠 How to Identify POM+GF20
- Engraved marking: > POM+GF20 <, > DELRIN GF20 <, > HOSTAFORM GF20 <.
- Texture: Rigid, slightly matte, fine visible fibers.
- ReplastMD practical test: Clean, crisp edges when cut with a clear sound. Flame: burns rapidly with a sharp formaldehyde scent.
🛠️ POM+GF20 Welding at ReplastMD:
At our ReplastMD service center (Chisinau, Chisinau, Ciocana sector), we perform professional POM+GF20 welding for technical brackets and precision housings, ensuring a durable, factory-grade finish.