🧩 PP+TD30 – 30% Talc-Filled Polypropylene
(Very rigid and dimensionally stable weldable plastic, used in automotive exterior and structural parts)
🔹 What is PP+TD30
PP+TD30 is a polypropylene filled with 30% talc, designed for applications requiring maximum rigidity, deformation resistance, and superior thermal stability.
It is one of the most widely used variants for bumpers, spoilers, and automotive exterior panels due to its excellent behavior under vibrations and temperature variations.
🔧 Composition
- PP (Polypropylene) – base matrix
- Talc (30%) – natural mineral providing rigidity and dimensional stability
- Additives – UV stabilizers, antioxidants, technical colorants
- Available in homopolymer or copolymer variants
🚗 Where PP+TD30 is used in the automotive industry
| Component | Example parts | Observations |
| Body / Exterior | Bumpers, spoilers, extensions, mirror covers | Rigid, temperature-stable |
| Technical Interior | Structural panels and supports | Dimensionally stable, matte finish |
| Engine Compartment | Sensor covers, technical supports | Good vibration resistance |
| Aftermarket / Tuning | Custom parts, rigid extensions | Welds with PP-TD at 270 °C |
🔧 Welding temperatures and methods
| Method | Optimal temperature | Observations |
| Hot air | 270 – 290 °C | Precise, controlled welding |
| Heat plate (mirror) | 260 – 280 °C | Recommended for flat joints |
| Manual extrusion | 250 – 270 °C | For long cracks and reinforcements |
| Ultrasonic | — | Industrial applications only |
🔩 What to weld PP+TD30 with (Material compatibility)
Many ask what to weld PP+TD30 with — the answer: with materials from the same talc-filled PP family.
Talc modifies density and melting behavior but maintains chemical compatibility with other PP types.
✅ Compatible:
- PP+TD30 ↔ PP+TD30 – ideal combination, rigid joint
- PP+TD30 ↔ PP+TD20 / PP+TD10 – very good compatibility
- PP+TD30 ↔ PP-C / PP-H – compatible, but with different elasticity
- PP+TD30 ↔ PP-GF20 – partially compatible, different shrinkage
❌ Incompatible:
- PE, ABS, ASA, PC, PA, PVC – different temperatures and chemistry
💡 ReplastMD Recommendation:
For professional results, use original PP-TD30 welding rods and maintain the temperature between 275–285 °C. Clean the oxidized area and apply uniform pressure for a smooth and durable weld.
🏭 Manufacturers and trade names
| Manufacturer | Brand / Series | Country / Region |
| LyondellBasell | Hostacom® TD30 | Germany / Netherlands |
| Borealis | Daplen® TD30 | Austria |
| SABIC | PP Compound TD30 | Netherlands / Global |
| TotalEnergies | Lumicene® TD30 | France |
| Hyundai EP | Polytron® TD30 | South Korea |
| Ravago | Enyglos® TD30 | EU |
🧠 How to identify PP+TD30
- Engraved marking: >PP-TD30< or >PP-T30<
- Matte surface, very rigid, fine mineral texture
- Yellow-blue flame, faint paraffin smell
- Melts at 270–280 °C, without bubbles
- Does not fully float in water (density > 1 g/cm³)
💡 ReplastMD Practical Test: If the part is rigid, heavy, and softens slowly at 280 °C → PP-TD30.