🧩 PA10T – Bio-Aromatic Polyamide (Oil Resistant)
(A high-performance bio-aromatic polyamide partly derived from renewable raw materials. It stands out for its excellent resistance to oils, fuels, and heat, while maintaining better flexibility and dimensional stability than other aromatic polyamides.)
🔹 What is PA10T
PA10T combines aromatic segments (T – terephthalamide) with long aliphatic segments (10 – decamethylenediamine). The result is a material with a high melting temperature (~300 °C), low moisture absorption, and superior chemical stability. It is the preferred choice for connectors, housings, and fittings that operate in permanent contact with oils, fuels, or hydraulic fluids.
🔧 Composition
| Component | Typical Ratio | Role |
| Bio-aromatic PA 10T Matrix | ≈ 70 % | Heat/Oil resistant and chemically stable matrix |
| Glass Fiber (E-Glass) | ≈ 30 % | Increases rigidity and thermal resistance |
| Bio-additives / UV | < 3 % | Oxidation protection and color retention |
🚗 Where PA10T is used in the automotive industry
| Component | Example parts | Observations |
| Oil / Fuel Fittings | Toyota, Nissan, Hyundai | Excellent hydrocarbon resistance |
| Sensor Housings / EGR | Bosch, Valeo | High thermal and dimensional stability |
| Engine Connectors | Honda, Denso | Good thermal and chemical insulation |
| Oil Pumps / Trans. | ZF, Aisin | Durability in contact with hot oil |
🔧 Welding Temperature and Methods
| Method | Optimal Temp | Observations |
| Hot Air | 290 – 310 °C | Uniform melting, requires slow cooling |
| Heat Plate (Mirror) | 290 – 300 °C | Ideal – Excellent results, no burnt zones |
| Plastic Extrusion | 300 °C | Recommended – use identical PA10T-GF rod |
🔩 Material Compatibility
- ✅ Compatible: PA10T, PA9T, PA6T.
- ⚠️ Partially Compatible: PA6I/6T, PA66 (requires fine temperature tuning).
- ❌ Incompatible: PA12, PP, PE, PBT, PVC (thermally and chemically incompatible).
💡 ReplastMD Recommendation: Weld at ~300 °C using PA10T-GF rods. The material handles thermal cycles and oils very well, making it ideal for engine bay parts.
🧠 How to Identify PA10T
- Engraved marking: >PA10T<, >VESTAMID HTPLUS<, >GENESTAR<, >RILSAN T<.
- Texture: Rigid but slightly elastic; fibers are visible.
- ReplastMD practical test: Produces a clear sound when tapped, fine edges when cut, without sudden shattering. Flame: burns slowly with a faint aromatic scent.
🛠️ PA10T Welding at ReplastMD:
At our ReplastMD service center (Chisinau, Ciocana sector), we perform professional PA10T welding for oil fittings and transmission components, ensuring a durable, leak-proof finish even in aggressive environments.