🧩 ABS+PMMA – Acrylonitrile Butadiene Styrene + Acrylate (PMMA)
(Technical material with superior glossy finish and good impact and UV resistance, used for caps, frames, consoles, decorative elements, and visible auto parts with high aesthetic requirements.)
🔹 What is ABS+PMMA
ABS+PMMA is a two-component thermoplastic blend, combining ABS (for strength and flexibility) with PMMA (Polymethyl Methacrylate — for gloss, hardness, and UV stability).
The result is a rigid, glossy, and durable material, scratch-resistant, with a superior visual appearance compared to simple ABS. It is frequently used for visible automotive parts — mirror caps, grilles, frames, and housings — where aesthetics matter as much as mechanical resistance.
🔧 Composition
- Acrylonitrile – 15–25 %
- Butadiene – 10–20 %
- Styrene – 30–40 %
- PMMA (Acrylate) – 20–40 %
- Density: 1.08–1.15 g/cm³
- Melting Point: ≈ 230–250 °C
- UV Resistance: Excellent (superior to ABS)
🚗 Where ABS+PMMA is used in the automotive industry
| Component | Example parts | Observations |
| Body Exterior | Mirror caps, frames, headlight housings | Intense gloss, UV resistant |
| Car Interior | Decorative elements, consoles, panels | Aesthetic texture, premium finish |
| Technical Equip. | Sensor caps, protective housings | Thermally stable and rigid |
| Aftermarket | Glossy accessories and covers | Ideal for painting and polishing |
🔧 Welding Temperature and Methods
| Method | Optimal Temperature | Observations |
| Hot Air | 250 – 270 °C | Uniform weld, watch for gloss retention |
| Heat Plate (Mirror) | 240 – 260 °C | Clean joint, gloss maintained |
| Manual Extrusion | 230 – 250 °C | For cracks or supports |
🔩 What to Weld ABS+PMMA With (Material Compatibility)
Being a styrenic-acrylic hybrid, ABS+PMMA is compatible with ABS, ASA, and PC/ABS.
✅ Compatible with:
- ABS+PMMA ↔ ABS+PMMA / ABS / ASA / SAN – ideal combination.
- ABS+PMMA ↔ PC/ABS / PMMA / ABS-HI – good compatibility.
- ABS+PMMA ↔ PS-HI / HIPS – partially compatible.
❌ Incompatible with:
- PP, PE, PA, PVC – different melting points, no adhesion.
💡 ReplastMD Recommendation:
Use ABS+PMMA or standard ABS rods at a temperature of 260–270 °C. Heat uniformly and work in thin layers to avoid losing the gloss. After welding, you can restore the finish with fine acrylic polish or clear coat.
🏭 Manufacturers and Trade Names
- LG Chem: LUPOY® AM
- Chi Mei: Polylac® PMMA
- BASF: Terlux® / Novodur® Blend
- SABIC: Cycolac® PMMA Blend
- Trinseo: Magnum™ PMMA-ABS
🧠 How to Identify ABS+PMMA
- Engraved marking: >ABS+PMMA<, >ABS/PMMA<, >PMMA-ABS<.
- Glossy, rigid, scratch-resistant surface.
- Yellow-blue flame, sweet chemical scent.
- Softens at ≈ 250 °C without bubbling.
- Does not easily discolor under hot air.
🛠️ ABS+PMMA Welding at ReplastMD:
At our service center in Chisinau (Ciocana sector), ReplastMD performs professional ABS+PMMA welding for caps, frames, consoles, and decorative elements, providing an invisible, durable, and original-gloss finish.