PC-ABS

PC-ABS is a high-performance engineering alloy that represents the perfect synergy between Polycarbonate and ABS. It offers the high impact strength and thermal stability of PC along with the exceptional processability and aesthetic versatility of ABS. This makes it the premier choice for demanding applications in the automotive, telecommunications, and medical industries. Jucheng Precision specializes in the precision CNC machining of PC-ABS, delivering complex prototypes and low-volume production parts with integrated features like snap-fits and threaded bosses. Our expertise in advanced surface finishing—including custom painting and texturing—ensures your PC-ABS components provide the rugged durability and premium look required for high-stakes product development.

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ABS & PC Alloy Variants

Grade	Common Name	Key Characteristics	Typical Applications
PC-ABS	Polycarbonate/ABS Alloy	Best balance of toughness, heat resistance, and processability. High impact strength even at low temperatures.	Automotive interiors, rugged electronics, medical enclosures.
Standard ABS	General Purpose ABS	Excellent impact resistance and low cost. Best for basic functional prototypes and toys.	Consumer goods, simple housings, early-stage models.
Standard PC	Polycarbonate	Highest impact strength and heat resistance, but more difficult to machine and finish than alloys.	Safety shields, lenses, high-heat structural parts.

PC-ABS Machining Capabilities

Capability	Technical Description	Jucheng Advantage
Ergonomic 5-Axis Milling	Machining complex, organic curves for handheld devices and automotive consoles.	Our 5-axis Haas/Mazak centers achieve seamless surface transitions, ensuring prototypes have the exact ergonomic feel of the final product.
Deep-Rib & Boss Machining	Milling tall, thin internal structural ribs and mounting bosses with high aspect ratios.	We utilize specialized long-reach tools and vibration-dampening strategies to ensure internal features are robust and dimensionally accurate.
Advanced Surface Finishing	Integrated post-processing including sand-blasting, chemical smoothing, and soft-touch painting.	Jucheng provides “A-Class” surface finishes that meet automotive and medical aesthetics, ready for assembly or marketing displays.
Insert Overmolding Simulation	CNC machining PC-ABS parts with precise recesses for the manual installation of brass or steel threaded inserts.	Ensures that prototypes can undergo rigorous mechanical testing and repeated assembly cycles without stripping threads.

Fabrication Guidelines for PC-ABS

Thermal Balance:
PC-ABS has a higher heat deflection temperature than standard ABS. Tip: We use high-speed spindles with optimized feed rates to prevent localized melting while maintaining high productivity.

Internal Stress Management:
The blend of two polymers can harbor internal stresses. Tip: For large or asymmetrical parts, we perform a stabilizing rest period between roughing and finishing passes to ensure zero warping.

Tooling Selection:
PC-ABS is tougher and slightly more abrasive than pure ABS. Tip: We use sub-micrograin carbide tools with polished flutes to shear the alloy cleanly, resulting in a superior surface finish (Ra 0.8μm).

Post-Processing Compatibility:
PC-ABS reacts exceptionally well to adhesives and paints. Tip: It is the best material for complex assemblies where multiple machined sections must be joined or cosmetically finished to a high standard.

Primary Applications

Automotive Interior Components
Dashboards, center consoles, glove box latches, and trim panels where high impact strength and heat resistance are required.

Rugged Handheld Electronics
Enclosures for industrial scanners, mobile terminals, and diagnostic tools that must survive drop tests and daily abuse.

Medical Device Housings
Covers and structural frames for clinical equipment that require a balance of impact toughness and chemical resistance to disinfectants.

Power Tools & Appliances
Internal structural components and external housings for high-end appliances that operate under mechanical stress.

Properties

Density	1.12 - 1.15 g/cm³
Tensile Strength	50 - 60 MPa
Elastic Modulus	2.3 - 2.7 GPa
Hardness	110 Rockwell R
Impact Strength	450 - 600 J/m
Heat Deflection Temp	105 - 125 °C
Continuous Service Temp	95 - 105 °C
Water Absorption	0.25%
Dielectric Strength	18 - 25 kV/mm
Machinability Rating	Excellent
Max Part Size	2000 x 800 x 600 mm