🧩 PP-TX15 – Polypropylene + Modified Talc 15%
(Rigid semi-crystalline material based on Polypropylene (PP) with 15% treated talc (TX15) additive)
🔹 What is PP-TX15
PP-TX15 is part of the modified talc-filled PP family, where the TX talc is chemically treated (silane, titanate, or coupling agents) to ensure improved adhesion between the mineral phase and the polymer matrix.
The result is a more homogeneous compound with increased UV stability and low shrinkage, preferred for body parts, covers, and rigid panels. It offers enhanced mechanical strength and a technical matte finish while being lighter than PP-TD20 or PP-TD30 variants. Commonly found in Renault, Dacia, VW, PSA, and Ford applications under TX10, TX15, TX20, and TX25 markings.
🔧 Composition
| Component | Typical Proportion | Role |
| Polypropylene (PP) | 80–85 % | Structural matrix, rigidity |
| Modified Talc (TX15) | 15 % | Stiffening, dimensional stabilization |
| Additives | < 5 % | UV protection and outdoor durability |
🚗 Automotive Applications
| Component | Example parts | Observations |
| Engine Covers | Upper covers, technical panels | Rigid, thermally stable |
| Bumpers / Sills | Sill extensions, lower corners | Semi-flexible, matte |
| Wheel Arches | Arched panels | Good UV stability |
| Technical Interior | Brackets, grilles, housings | Clean finish, uniform texture |
🔩 Welding Compatibility
| Mating Material | Compatibility | Observations |
| Plain PP, TD10/20, MD20 | ✅ Excellent | Weldable – common structure |
| PP-EPDM-TX10/20, TPO | ⚠️ Fair | Partially compatible (elasticity difference) |
| TPE-O, TPE-V | ⚠️ Limited | Limited weldability |
| PA, PC, ABS, PET, PVC | ❌ Incompatible | Chemically and thermally incompatible |
🏭 Manufacturers and Trade Names
- LyondellBasell: Hostacom® TX Series (PP-TX10 / TX15 / TX20)
- Borealis AG: Daplen® TX Series (PP-TX15)
- SABIC: PP-TX15 Compound
- Röchling Automotive: RoeBlend® PP-TX15
🧠 How to Identify
- Markings: >PP-TX15<, >PP-TX10<, >PP-TX20<
- Texture: Matte, rigid, smooth, medium density (~1.00 g/cm³)
- Flame Test: Clean flame, PP smell, white-grey ash (talc)
- Melts uniformly, does not become rubbery, snaps cleanly when cold-bent
🛠️ PP-TX15 Welding at ReplastMD
| Method | Temperature | Observations |
| Hot Air | 230 – 250 °C | Recommended – Plain PP or PP-TD20 rod |
| Heat plate (Mirror) | 220 – 240 °C | Stable bonding, no shrinkage |
| Extrusion | 230 – 250 °C | For long technical joints |
💡 ReplastMD Recommendation: use PP or PP-TD welding rods, keep the surface clean and maintain constant air flow.