NEWS

Raiso Wheel loader: Full vehicle structural parts Electrophoretic Coating
2025-08-15

Advantages of Electrophoretic Coating for Loaders

Electrophoretic coating (e-coating) is a widely used anti-corrosion painting process for wheel loader, such as loaders. Compared to traditional spray painting, e-coating offers several key advantages:  

1.Superior Corrosion Resistance

✅ Uniform Coverage: The electro-deposition process ensures even coating adhesion, including complex structures, welds, and internal cavities that are hard to reach with spray painting.  

✅ Salt Spray Resistance: E-coated parts can withstand 800–1000+ hours in salt spray tests (compared to 200–300 hours for conventional paint), making them ideal for humid, coastal, or chemical-heavy environments.  

✅ Long-Term Protection: Extends the lifespan of critical components (e.g., chassis, frames) by 3–5 times, reducing rust-related maintenance costs.  

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2. Exceptional Adhesion Strength  

Chemical Bonding: E-coat forms a molecular bond with the metal surface, offering far stronger adhesion than spray paint (verified via cross-cut tests).  

Impact Resistance: Withstands rocks, collisions, and harsh working conditions without chipping.  

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3. Environmental & Cost Benefits

Low VOC Emissions: Uses water-based coatings, minimizing solvent emissions and complying with regulations (e.g., EU RoHS).  

High Material Utilization: Achieves 95%+ paint transfer efficiency (vs. 3050% for spray painting), reducing waste.  

Automation-Friendly: Ideal for mass production, lowering labor costs.  

4. Surface Quality & Process Advantages  

Smooth Finish: Eliminates drips, orange peel, and uneven textures, improving aesthetics.  

Complete Coverage: Effectively coats hidden areas (e.g., pipe interiors, box sections) that spray methods often miss.  

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5. Comparison with Other Coating Methods  

Feature

E-Coating

Spray Painting

Powder Coating

Corrosion Resistance

⭐⭐⭐⭐⭐ (Best)

⭐⭐

⭐⭐⭐⭐

Edge/Internal Coverage

Full coverage

Risk of misses

Moderate edge coverage

Eco-Friendliness

Water-based, low pollution

High VOC emissions

Solvent-free but generates dust

Cost Efficiency

Medium-high (long-term savings)

Low (short-term)

High

Best For

Critical parts (frames, booms)

Cosmetic parts

Cosmetic parts

6. Typical E-Coating Applications in Loaders  

- Key Anti-Corrosion Parts: Frames, booms, buckets, hydraulic mounts.  

- Harsh-Environment Models: Loaders used in mining, ports, and construction.  

Raiso wheel loader all structural parts include the cab is formed on the Structual parts surface after four processes: Degreasing--Washing--Re-washing--Electrophoresis, which significantly improves the corrosion resistance and wear resistance of the surface of the object.