🧩 PC+ASA – Polycarbonate + Acrylonitrile Styrene Acrylate

(Technical exterior material, combining the rigidity of polycarbonate with the UV and weather resistance of ASA. Ideal for car parts exposed to sun, vibrations, and temperature shifts. Offers toughness, stability, and a long-lasting glossy finish.)

🔹 What is PC+ASA

PC+ASA is a bistructural technical blend resulting from the combination of polycarbonate (PC) and ASA (acrylonitrile-styrene-acrylate).

This combination offers high mechanical and thermal strength (from PC) along with exceptional UV and weather stability (from ASA). Unlike PC+ABS, PC+ASA does not fade or turn matte and withstands long-term solar exposure, making it the preferred choice for exterior parts and highly visible areas.

🔧 Composition

Polycarbonate (PC): 50–70 %
ASA (Acrylonitrile Styrene Acrylate): 30–50 %
UV / Thermal Additives: 1–3 %
Density: 1.10–1.15 g/cm³
Softening Point: ≈ 230–250 °C
Chemical Resistance: Good (oils, detergents, mild solvents).
UV Resistance: Excellent (intended for exterior use).

🚗 Where PC+ASA is used in the automotive industry

Component	Example parts	Observations
Body Exterior	Mirror caps, grille frames, sensor housings	Durable gloss, very good UV resistance
Interior (Sun-exposed)	Dashboard frames, trims, ornaments	Maintains color and gloss over time
Technical / Struct.	Sensor brackets, supports, panels	High dimensional stability
Exterior Decorative	Colored or glossy parts	Premium look, UV aging resistance

🔧 Welding Temperature and Methods

Method	Optimal Temperature	Observations
Hot Air	250 – 270 °C	Clean weld, no yellowing
Heat Plate (Mirror)	240 – 260 °C	Ideal for flat and glossy edges
Manual Extrusion	240 – 260 °C	For long cracks and reinforcements

🔩 What to Weld PC+ASA With (Material Compatibility)

The PC+ASA blend combines the compatibility of PC with ASA styrenics, offering a wide range of possible welds.

✅ Compatible with:

PC+ASA ↔ PC / ASA / ABS / PC+ABS / ASA+PC – ideal.
PC+ASA ↔ SAN+ABS / ABS+ASA / PC+PBT – good compatibility.

❌ Incompatible with:

PP, PE, PA, PVC, PS, TPO – completely different melting points.

💡 ReplastMD Recommendation:

Use PC+ASA rods or PC+ABS rods at 255–270 °C. Heat gradually to avoid burning the glossy layer. For visible parts, you can restore the gloss with controlled hot air or UV polish.

🏭 Manufacturers and Trade Names

SABIC: Cycoloy® ASA+PC / Lexan® ASA-PC
Covestro: Makroblend® ASA-PC
LG Chem: LUPOY® PC+ASA
Trinseo: Pulse™ ASA-PC

🧠 How to Identify PC+ASA

Engraved marking: >PC+ASA<, >ASA/PC<, >Makroblend<, >Cycoloy<.
Glossy, dense, uniform surface.
Withstands UV well — does not turn matte after exposure.
Softens at ≈ 250 °C without bubbling.
Faint styrenic odor, yellow-blue flame.

🛠️ PC+ASA Welding at ReplastMD:

At our ReplastMD service center (Chisinau, Ciocana sector), we perform professional PC+ASA welding for mirror caps, frames, and exterior decorative panels, ensuring an invisible joint and excellent sun resistance.