🧩 PP+EPDM+TD30 – Polypropylene with EPDM Rubber and 30% Talc
(Rigid-elastic weldable plastic, highly dimensionally stable, used in car bumpers and exterior parts exposed to high mechanical stress)
🔹 What is PP+EPDM+TD30
PP+EPDM+TD30 is a technical blend of polypropylene (PP), EPDM rubber, and 30% talc, created to provide a perfect balance between elasticity and rigidity.
Talc adds mechanical strength and dimensional stability, while EPDM rubber provides flexibility and resistance to impact cracking. It is the preferred material for manufacturers for front/rear bumpers, spoilers, and lower protections.
🔧 Composition
- PP (Polypropylene) – thermoplastic base
- EPDM (Ethylene-Propylene-Diene-Monomer) – synthetic rubber (10–15 %)
- Talc (30 %) – rigidifying mineral filler
- Additives – UV stabilizers, antioxidants, coupling agents
🚗 Where PP+EPDM+TD30 is used in the automotive industry
| Component | Example parts | Observations |
| Body / Exterior | Car bumpers, spoilers, side covers | Elastic and impact resistant |
| Technical Interior | Side panels, rigid supports | Stable, matte and durable finish |
| Engine Compartment | Lower protections, liners | Thermally stable, anti-vibration |
| Aftermarket / Tuning | Extensions, air diffusers, sport elements | Matte look, easy to paint |
🔧 Welding temperatures and methods
| Method | Optimal temperature | Observations |
| Hot air | 270 – 290 °C | Precise, controlled welding |
| Heat plate (mirror) | 260 – 280 °C | Ideal for flat joints |
| Manual extrusion | 250 – 270 °C | Recommended for long cracks |
| Ultrasonic | — | Industrial use only |
🔩 What to weld PP+EPDM+TD30 with (Material compatibility)
The question “what to weld PP+EPDM+TD30 with” is essential in car bumper repairs. The material welds perfectly with identical compositions or other compatible PP types (especially those containing EPDM and talc).
✅ Compatible:
- PP+EPDM+TD30 ↔ PP+EPDM+TD30 – ideal combination, solid joint
- PP+EPDM+TD30 ↔ PP+EPDM+TD20 – very good compatibility
- PP+EPDM+TD30 ↔ PP+EPDM / PP+HI / PP-C – good compatibility, slightly more elastic
- PP+EPDM+TD30 ↔ PP-TD30 / PP-MD20 – partially compatible, different rigidity
❌ Incompatible:
- PE, ABS, ASA, PC, PA, PVC – different structures and melting temperatures
💡 ReplastMD Recommendation:
Use original PP-EPDM-TD30 welding rods (or PP-TD if unavailable) and work at temperatures of 275–285 °C. Clean the whitish oxidation zone (exposed talc) and melt slowly with uniform pressure for a clean bond.
🏭 Manufacturers and trade names
| Manufacturer | Brand / Series | Country / Region |
| LyondellBasell | Hostacom® XBR / TD30EP | Germany / Netherlands |
| Borealis | Daplen® ED / TD30 | Austria |
| SABIC | PP-EPDM-TD30 | Netherlands / Global |
| TotalEnergies | Lumicene® TD30E | France |
| Hyundai EP | Polytron® EPDM-TD30 | South Korea |
| Ravago | Enyglos® TPO-TD30 | EU |
🧠 How to identify PP+EPDM+TD30
- Engraved marking: >PP-EPDM-TD30< or >TPO-T30<
- Yellow-blue flame, faint paraffin smell
- Matte surface, rigid but slightly elastic
- Higher density (does not fully float in water)
- Melts at 280 °C, without bubbles
💡 ReplastMD Practical Test: If the bumper is rigid but slightly malleable when bending and has the >PP-EPDM-TD30< marking → confirmed PP-EPDM-TD30.