🧩 PHA+PBAT – Flexible Compostable Bio-Polymer
(A biodegradable and compostable blend of Polyhydroxyalkanoate (PHA) and Polybutylene Adipate Terephthalate (PBAT). Designed for applications requiring flexibility, impact resistance, and rapid degradation in natural environments.)
🔹 What is PHA+PBAT
PHA+PBAT is a next-generation eco-hybrid. At ReplastMD, we treat it as a high-performance bio-elastomer. While PHA provides chemical resistance and moderate rigidity, PBAT adds the flexibility and toughness typically associated with low-density polyethylene (PE). It is an excellent choice for interior covers, gaskets, and non-structural decorative components that need to be soft yet durable.
🔧 Composition & Properties
- Polymer Base: PHA (40–60%) + PBAT (40–60%).
- Density: ~ 1.23–1.27 g/cm³.
- Processing Temp: 160 – 180 °C.
- Chemical Group: Natural and synthetic polyesters.
- Scent: Light sweet vegetal scent when heated.
🚗 Where it is used in the automotive industry
| Component | Example parts | Observations |
| Interior Caps & Shields | Toyota, Renault | Bio-replacement for soft PP |
| Gaskets & Temp Clips | VW, Hyundai | Elastic and biodegradable |
| Decorative Accents | BMW, Peugeot | Natural look, satin gloss |
| Eco-Prototypes | ReplastMD internal | Sustainable and easy to process |
🔧 Welding Temperature and Methods
| Method | Optimal Temp | Observations |
| Hot Air | 160 – 180 °C | Easy to weld, soft material, uniform melt |
| Heat Plate (Mirror) | ✅ Ideal | Clean joint without burning bio-components |
| Welding Rod | ✅ Recommended | Use matching or compatible PHA/PBAT rod |
| Ultrasonic | ⚠️ Limited | Only for thin walls with reduced pressure |
💡 ReplastMD Recommendation: Weld at ~170 °C using a PHA+PBAT or compatible PHA rod. The material is soft, elastic, and fully compostable, making it perfect for decorative repairs, gaskets, and eco-demonstration parts in the ReplastMD lineup.