1. Performance Requirements of Automotive Coatings

Car coatings must withstand complex environmental and mechanical stresses.

Key requirements include:

• High gloss and metallic brilliance

• Uniform flake orientation

• Strong weather resistance

• Scratch and abrasion resistance

• UV and chemical stability

• Environmental compliance

Aluminium pigments are essential for meeting these demands.

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2. Functional Role of Aluminium Paste in Automotive Paints

Aluminium paste contributes to both decorative and protective properties.

2.1 Metallic Effect Enhancement

Precisely controlled aluminium flakes create:

• Smooth metallic appearance

• High reflectivity

• Consistent color tone

• Fine sparkle distribution

2.2 Barrier and Protection Performance

Overlapping flakes form protective layers that:

• Reduce moisture penetration

• Improve corrosion resistance

• Enhance coating durability

2.3 Thermal Reflection

Aluminium pigments reflect infrared radiation, lowering surface temperature and reducing coating aging.

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3. Key Technologies in Automotive Aluminium Paste Manufacturing

High-quality automotive pigments require advanced production processes.

3.1 Ultra-Thin Flake Processing

Uniform thin flakes improve light reflection and orientation.

3.2 Surface Treatment Technology

Special coatings improve compatibility with solvent-based, water-based, and high-solid systems.

3.3 Particle Size Distribution Control

Narrow PSD ensures consistent appearance across batches.

3.4 Low-Gas and Low-Impurity Control

Minimized gas generation improves safety and coating stability.

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4. Compatibility with Automotive Paint Systems

Automotive aluminium paste is compatible with multiple coating systems.

4.1 Solvent-Based Basecoats

Provides strong metallic texture and easy dispersion.

4.2 Water-Based Basecoats

Ensures stable dispersion and low VOC emissions.

4.3 High-Solid and Low-VOC Systems

Supports modern environmental regulations.

4.4 Refinish and Repair Coatings

Ensures color consistency in repair applications.

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5. Application Areas in Automotive Industry

Automotive aluminium paste is widely used in vehicle manufacturing.

5.1 OEM Coatings

Applied in factory original coatings.

5.2 Automotive Refinish Paints

Used in aftermarket repair systems.

5.3 Commercial Vehicles

Applied to trucks, buses, and trailers.

5.4 Automotive Plastic Coatings

Suitable for bumpers and exterior parts.

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6. Formulation and Processing Recommendations

Proper formulation ensures optimal coating performance.

6.1 Recommended Dosage

Typically 5%–15% depending on metallic intensity.

6.2 Dispersion Method

Low-speed mixing prevents flake damage.

6.3 Spray Application Control

Stable atomization ensures uniform distribution.

6.4 Multi-Layer Coating Systems

Basecoat + clearcoat improves durability and gloss.

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7. Quality Testing and Performance Evaluation

Automotive coatings undergo strict testing procedures.

Key evaluation methods include:

• QUV weathering test

• Cross-cut adhesion test

• Stone-chip resistance test

• Salt spray test

• Gloss retention test

These standards ensure long-term reliability.

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8. ZQ Metallic Automotive Aluminium Paste Solutions

ZQ Metallic supplies premium aluminium paste for automotive coatings.

Our advantages include:

• High brightness and smooth appearance

• Excellent dispersion stability

• Consistent batch quality

• Low impurity content

• Customized particle design

• Technical formulation support

We assist customers in achieving superior coating performance.

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Conclusion

Automotive aluminium paste is essential for producing high-quality metallic finishes and durable vehicle coatings. Through advanced manufacturing technology and precise formulation control, manufacturers can meet strict automotive standards and market demands.

ZQ Metallic continues to provide professional aluminium paste solutions for automotive coating systems worldwide.

For product selection and technical support, please contact our team.