🧩 ABS+PA – Acrylonitrile Butadiene Styrene + Polyamide (Nylon)

(High-performance technical material, with high mechanical resistance, controlled elasticity, and superior thermal stability. Used in brackets, covers, fastening parts, and automotive elements exposed to high stress and temperatures.)

🔹 What is ABS+PA

ABS+PA (ABS + Polyamide) is a technical hybrid blend that combines ABS (for gloss, dimensional stability, and processability) with polyamide (PA6 or PA66) (for high mechanical, thermal, and chemical resistance).

The result is a durable, slightly elastic, and heat-stable material, ideal for automotive parts working under vibration and temperatures of 80–120 °C. ABS+PA is used especially for structural and technical components where simple ABS would be too soft and pure PA too rigid or brittle.

🔧 Composition

• Acrylonitrile – 10–20 %
• Butadiene – 10–15 %
• Styrene – 30–40 %
• Polyamide (PA6 or PA66) – 30–50 %
• Density: 1.10–1.20 g/cm³
• Melting Point: ≈ 240–260 °C
• Impact Resistance: very good (up to 25 kJ/m²)
• Thermal Resistance: up to 120 °C continuous

🚗 Where ABS+PA is used in the automotive industry

Component	Example parts	Observations
Engine Bay	Sensor covers, brackets, fasteners	Heat-stable and vibration resistant
Technical Interior	Brackets, clips, structural covers	Elastic but very strong
Exterior	Concealed elements, power mounts	Good paint adhesion, medium gloss
Electrical Equip.	Housings and guides	Good insulation, but watch for humidity

🔧 Welding Temperature and Methods

Method	Optimal Temperature	Observations
Hot Air	260 – 280 °C	Possible, but requires compatible ABS-PA rod
Heat Plate (Mirror)	250 – 270 °C	Recommended for flat joints
Manual Extrusion	240 – 260 °C	Requires careful control, uneven melting

🔩 What to Weld ABS+PA With (Material Compatibility)

The question “what to weld ABS+PA with” is important because ABS and PA are polymers with different thermal properties and polarities.

✅ Compatible with:

• ABS+PA ↔ ABS+PA / PA6 / PA66 / ABS – ideal combination.
• ABS+PA ↔ PC/ABS / ABS-GF / ABS-HI – good compatibility.
• ABS+PA ↔ PA-GF / modified PA+ABS – partially compatible.

❌ Incompatible with:

• PP, PE, TPO, PVC – completely different melting points, no adhesion.

💡 ReplastMD Recommendation:

Use ABS+PA or PA6 rods at a temperature of 270–280 °C. Heat slowly to avoid burning the ABS component. During cooling, apply constant pressure for good diffusion between layers. For structural parts, we recommend local reinforcement through inserts.

🏭 Manufacturers and Trade Names

• BASF: Terblend® N, Novodur® Blend PA
• SABIC: Cycolac® PA
• LG Chem: LUPOY® PA
• Chi Mei: Polylac® PA
• INEOS Styrolution: Terlux® PA

🧠 How to Identify ABS+PA

• Engraved marking: >ABS+PA<, >PA/ABS<, >ABS-PA6<, >TERBLEND N<.
• Matte black or dark grey color, slightly textured surface.
• Yellow-blue flame, faint chemical smell (styrene + amide).
• Softens at ≈ 270 °C, but melting is slow and elastic.
• Very rigid, but not brittle when bent.

🛠️ ABS+PA Welding at ReplastMD:

At our service center in Chisinau (Ciocana sector), ReplastMD performs professional ABS+PA welding for brackets, housings, fasteners, and technical covers, ensuring heat and vibration-resistant repairs.