Pre-treatment Equipment for Plastic Plating
Pre-treatment Equipment for Plastic Plating (JYC-PP-Pre-Series)
Built to Make Plastics Platable
ABS, PC/ABS, and PP plastics are non-conductive. They cannot be plated directly. Our Pre-treatment Equipment for Plastic Plating solves this problem. The core process includes: degreasing, conditioning, etching, neutralization, pre-dip, activation, acceleration, and electroless nickel or electroless copper plating. After treatment, the plastic surface forms a conductive layer. Adhesion strength reaches 1.5 N/cm or above. This is tested per ASTM B533. Some products achieve over 2.0 N/cm. This is suitable for automotive grilles, bathroom handles, and phone housings.
Materials and Construction for Harsh Chemistry
Tanks use SUS316L or PP-lined heat-resistant PVC. The key etching tank contains chromic acid plus sulfuric acid at 65 to 70°C. Forced circulation and condenser reflux systems prevent chrome mist escape. All tanks have automatic temperature control with ±1°C precision and circulation filtration. Racks use stainless steel spring contacts. These ensure plastic parts are fixed and conduct electricity well. We have proven cases in the automotive interior parts industry.
Three Core Advantages
First, etching is uniform.
Spray plus ultrasonic synergy is used. It forms uniform micro-pores of 0.5 to 2 microns on the plastic surface. This anchoring effect makes the coating grip tightly. Peel strength exceeds 2.0 N/cm.
Second, precious metal activation is efficient.
Palladium colloid activation with 30 to 60 ppm palladium is used. Activation time is only 2 to 4 minutes. Palladium consumption is as low as 0.01 g/m². With the acceleration step, electroless nickel deposition is fast at 2 to 4 microns per 10 minutes.
Third, chrome-free etching is available.
We offer a potassium permanganate-based chrome-free etching process. This replaces traditional chromic acid. It reduces hexavalent chromium emissions. It meets RoHS and REACH requirements.
What Buyers Often Ask
Buyers ask us: "Plastic plating customers fear coating peeling most. How do you guarantee adhesion?" This equipment supports horizontal linear or vertical lift structures. Capacity is designed for 3 to 8 minute cycle times per rack. All dosing systems are automated. pH and ORP are monitored online. We provide complete line integration from pre-treatment to electroless plating to copper-nickel-chrome plating.
Technical Specifications
|
Parameter |
Specification |
|
Adhesion Strength |
≥ 1.5 N/cm (up to 2.0 N/cm+) |
|
Etching Micro-pore Size |
0.5 – 2 µm |
|
Palladium Concentration |
30 – 60 ppm |
|
Activation Time |
2 – 4 min |
|
Palladium Consumption |
≤ 0.01 g/m² |
|
Electroless Nickel Deposition Rate |
2 – 4 µm/10 min |
|
Cycle Time |
3 – 8 min/rack |
|
Temperature Control Precision |
±1°C |
|
Applicable Standards |
ASTM B533, RoHS, REACH |
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