🧩 PC+ABS+GF20 – Polycarbonate + ABS 20% Glass Fiber
(Rigid technical composite material, resulting from the blend of Polycarbonate (PC) and ABS, reinforced with 20% glass fiber (GF20) to increase mechanical and thermal strength. Used in structural car parts, brackets, and consoles.)
🔹 What is PC+ABS+GF20
PC+ABS+GF20 belongs to the family of reinforced Polycarbonate-ABS blends used in the automotive and electronics industries.
The added glass fiber (20%) provides excellent resistance to torsion and tension, but slightly reduces the typical elasticity of ABS. The material remains rigid, heat-stable, and dimensionally precise, but requires careful cooling control to avoid internal stresses.
🔧 Composition
| Component | Typical Proportion | Role |
| Polycarbonate (PC) | 40–50 % | Heat resistance and hardness |
| ABS | 30–40 % | Toughness, ease of processing |
| Glass Fiber (GF20) | 20 % | Reinforcement, rigidity, torsion resistance |
| Additives | < 5 % | UV protection and color uniformity |
🚗 Where it is used in the automotive industry
| Component | Example parts | Observations |
| Consoles & Supports | Steering brackets, dashboard frames | Rigid, stable, matte finish |
| Sensor Housings | AC sensors, ECU boxes | Good dielectric, durable |
| Interior Decorative | Frames, caps, covers | Uniform surface, slightly glossy |
| Mechanical Mounts | Technical fastening parts | High mechanical strength |
🔩 What to Weld with (Material Compatibility)
- PC+ABS, PC/ABS, Bayblend® ✅ — Weldable (hot air or vibration).
- PC+ABS-GF10 / GF30 ⚠️ — Compatible (requires temperature control).
- ABS, PC ⚠️ — Partially weldable (melting point difference).
- PP, PE, PA, PBT, PVC ❌ — Chemically and thermally incompatible.
🏭 Manufacturers and Trade Names
- Covestro (Bayer): Bayblend® GF20
- SABIC: Cycoloy® GF20
- Trinseo: Pulse® PC+ABS GF20
🧠 How to Identify
- Marking:
>PC+ABS+GF20<,>PC/ABS-GF20<,>Bayblend-GF20<. - Texture: Fine, rigid, with visible fiber on the cross-section.
- Color: Grey-black, slightly glossy.
- ReplastMD practical test: Clean flame, self-extinguishes, faint aromatic (ABS) scent. May show white fiber traces on broken edges.
🛠️ Welding at ReplastMD:
- Hot Air: 270 – 290 °C (Suitable for small repairs).
- Ultrasonic / Vibration: ✅ Recommended (Ensures excellent mechanical bonding).
💡 ReplastMD Recommendation: Welding is done only with controlled hot air or ultrasonic methods, using PC/ABS (Bayblend®) rods. Avoid overheating — polycarbonate degrades easily under excessive heat.