🧩 ASA+ABS – Acrylate Styrene Acrylate + Acrylonitrile Butadiene Styrene
(Universal, durable, and aesthetic automotive material, combining the UV resistance and stability of ASA with the elasticity and gloss of ABS. Frequently found in automotive housings, frames, caps, bumpers, and interior-exterior parts.)
🔹 What is ASA+ABS
ASA+ABS is a versatile thermoplastic blend that combines two very popular materials:
- ASA (Acrylate Styrene Acrylate) – for UV resistance, color stability, and hardness.
- ABS (Acrylonitrile Butadiene Styrene) – for impact resistance, gloss, and processability.The result is a material with a perfect balance between aesthetics, flexibility, and environmental resistance, ideal for car parts that must be both visually appealing and mechanically durable. It is especially used for bumpers, frames, caps, mirrors, and exterior decorative parts.
🔧 Composition
- ASA (Acrylate Styrene Acrylate) – 40–60 %
- ABS (Acrylonitrile Butadiene Styrene) – 40–60 %
- UV Additives / Colorants / Stabilizers – 1–5 %
- Density: 1.07–1.10 g/cm³
- Melting Point: ≈ 240–260 °C
- Impact Resistance: Excellent, even in cold temperatures.
🚗 Where ASA+ABS is used in the automotive industry
| Component | Example parts | Observations |
| Body Exterior | Bumpers, mirror caps, headlight frames | UV resistance, uniform gloss |
| Car Interior | Panels, consoles, decorative caps | Aesthetic finish, scratch resistance |
| Bodywork / Tuning | Covers, inserts, colored parts | Maintains gloss and shape over time |
| Accessories | Sensor housings, protective caps | Good thermal and chemical stability |
🔧 Welding Temperature and Methods
| Method | Optimal Temperature | Observations |
| Hot Air | 260 – 280 °C | Clean weld, no surface burning |
| Heat Plate (Mirror) | 250 – 270 °C | Uniform joint, gloss preserved |
| Manual Extrusion | 240 – 260 °C | Recommended for long cracks |
🔩 What to Weld ASA+ABS With (Material Compatibility)
As a 100% styrenic material, ASA+ABS is fully compatible with most materials in the ABS and ASA families.
✅ Compatible with:
- ASA+ABS ↔ ASA+ABS / ASA / ABS / SAN – ideal combination.
- ASA+ABS ↔ PC/ABS / ABS-HI / ABS-FR – good compatibility.
- ASA+ABS ↔ PS-HI / HIPS – partially compatible.
❌ Incompatible with:
- PP, PE, PA, PVC – completely different melting points.
💡 ReplastMD Recommendation:
Use ASA+ABS or standard ABS rods at a temperature of 270 °C. Heat uniformly and apply light pressure. After welding, for a glossy finish, quickly pass hot air and a soft cloth over the joint area.
🏭 Manufacturers and Trade Names
- INEOS Styrolution: Terblend® N, Luran® S
- BASF: Terluran® ASA-ABS
- SABIC: Cycolac® ASA+ABS
- LG Chem: LUPOY® ASA/ABS
- Trinseo: Magnum™ ASA/ABS
🧠 How to Identify ASA+ABS
- Engraved marking: >ASA+ABS<, >ABS/ASA<, >LURAN-S<, >ACRYL-ABS<.
- Glossy or semi-matte surface, hard, pleasant to the touch.
- Yellow-blue flame, sweet (styrenic) scent.
- Softens at ≈ 260 °C without bubbling.
- Does not discolor under hot air.
🛠️ ASA+ABS Welding at ReplastMD:
At our service center in Chisinau (Ciocana sector), ReplastMD performs professional ASA+ABS welding for bumpers, caps, frames, and exterior decorative elements, providing a solid, aesthetic, and UV-resistant finish.