🧩 PP-TD15 – 15% Talc Filled Polypropylene
(Rigid-semiflexible semi-crystalline material based on Polypropylene (PP) filled with 15% talc (TD15))
🔹 What is PP-TD15
PP-TD15 is one of the most widely used variants for exterior and interior automotive parts, offering a good balance between rigidity, low weight, and thermal stability without compromising processability.
It is a mineralized polypropylene compound featuring fine natural talc powder uniformly distributed throughout the polymer matrix. The 15% concentration provides moderate stiffening while maintaining the necessary elasticity for applications subject to vibrations or slight deformations.
🔧 Composition
| Component | Typical Proportion | Role |
| Polypropylene (PP) | 85 % | Structural matrix, dimensional stability |
| Talc (TD15) | 15 % | Stiffening, shrinkage reduction |
| Additives | < 5 % | Aging protection and processability |
🚗 Automotive Applications
| Component | Example parts | Observations |
| Engine Covers | Upper covers, brackets | Good thermal stability |
| Interior Panels | Under-shields, lower covers | Semi-flexible, lightweight |
| Grilles and Trims | Front grilles, frames, supports | Matte, uniform finish |
| Thick-walled Parts | Sensor mounts, wheel covers | Medium mechanical resistance |
🔩 Welding Compatibility
| Mating Material | Compatibility | Observations |
| Plain PP, TD10/20, MD15/20 | ✅ Excellent | Weldable – identical structure |
| PP-EPDM-TD, TPO-TD | ⚠️ Fair | Partially compatible (elasticity difference) |
| TPE-O, TPE-V | ⚠️ Limited | Partially weldable |
| PA, PC, PVC, ABS, PET | ❌ Incompatible | Thermally and chemically incompatible |
🏭 Manufacturers and Trade Names
- LyondellBasell: Hostacom® PP-TD15
- Borealis AG: Daplen® PP-TD15
- SABIC: PP-TD15 Compound
- Röchling Automotive: RoeBlend® PP-TD15
🧠 How to Identify
- Markings: >PP-TD15<, >PP-TD10<, >PP-TD20<
- Texture: Matte, slightly rigid, smooth
- Density: ~0.98–1.00 g/cm³
- Flame Test: Clean flame, faint PP smell, white ash (talc)
- Thermal resistance up to 110 °C (continuous)
🛠️ PP-TD15 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 | Recommended for high thicknesses |
💡 ReplastMD Recommendation: use PP-TD or pure PP welding rods, clean with isopropyl alcohol, and maintain controlled hot air flow.
Suntem la pagina 28! Putem continua cu următorul material oricând ești gata. Vrei să trecem la varianta de plastic PP-PE sau ai altul pregătit?