🧩 P/E-I-EPDM-T15 – PE+PP Copolymer + EPDM + 15% Talc
(Flexible-rigid copolymeric olefin material, composed of a balanced blend of Polyethylene (PE) and Polypropylene (PP), modified with EPDM for elasticity and 15% talc (T15) for stiffening)
🔹 What is P/E-I-EPDM-T15
P/E-I-EPDM-T15 (also labeled as PE-PP-I-EPDM-T15 or P/E/PP-EPDM-T15) is a complex polyolefin copolymer (PE + PP) modified with EPDM for flexibility and 15% talc for dimensional stability and hardness.
It belongs to the family of advanced thermoplastic olefins frequently used by European manufacturers (Renault, PSA, Fiat, Dacia) for exterior components that require impact resistance, vibration damping, and uniform thermal behavior. Similar markings include T10, T20, TX15, or TVX15 variants.
🔧 Composition
| Component | Typical Proportion | Role |
| PE (Polyethylene) | 30–40 % | Flexibility and impact resistance |
| PP (Polypropylene) | 30–40 % | Rigidity and dimensional stability |
| EPDM (Synthetic Rubber) | 10–15 % | Elasticity and cold-weather performance |
| Talc (T15) | 15 % | Stiffening and shrinkage control |
| Additives | < 5 % | Protection and long-term durability |
🚗 Automotive Applications
| Component | Example parts | Observations |
| Wheel Arch Liners | Renault, Nissan, Dacia elements | Semi-flexible, matte, vibration-resistant |
| Underbody Shields / Side Sills | Exterior panels, protective covers | Balanced rigidity and elasticity |
| Technical Covers / Housings | Accessory caps, sensor protectors | Thermally and chemically stable |
| Decorative Elements / Diffusers | Bumper extensions, lower trims | Uniform matte appearance |
🔩 Welding Compatibility
| Mating Material | Compatibility | Observations |
| P/E-I-EPDM, PP-EPDM, PP-TPO, TEO | ✅ Excellent | Common polyolefin family |
| PP-TD, PP-EPDM-T20, TPO-TD20 | ⚠️ Fair | Partial compatibility – flow test required |
| TPE-O, TPE-V | ⚠️ Limited | Partially weldable with adapted rod |
| PA, PC, PVC, ABS, PET | ❌ Incompatible | Chemically and thermally incompatible |
🏭 Manufacturers and Trade Names
- SABIC: PP/PE-EPDM Compounds
- LyondellBasell: Hostacom® P/E-EPDM-T Series
- Borealis AG: Daplen® P/E-EPDM-T15
- Röchling Automotive: RoeBlend® PE-PP-EPDM-T15
🧠 How to Identify
- Markings: >P/E-I-EPDM-T15<, >PE-PP-EPDM-T15<, >P/E-I-EPDM-TX15<
- Texture: Matte, dense, slightly rubbery but stable
- Density: ~1.00–1.04 g/cm³
- Color: Automotive grey-black
- Flame Test: Clean flame, faint polyolefin smell, white-grey ash (talc)
- Moderate elasticity, crack and vibration resistant
🛠️ P/E-I-EPDM-T15 Welding at ReplastMD
| Method | Temperature | Observations |
| Hot Air | 230 – 250 °C | Recommended – TPO / PP-EPDM rod |
| Heat plate (Mirror) | 220 – 240 °C | Uniform matte bonding |
| Extrusion | 230 – 250 °C | For thick or deformed joints |
💡 ReplastMD Recommendation: use TPO or PP-EPDM welding rods, maintain constant clean air flow, and apply uniform pressure.