As industries shift towards low-VOC, safer, and more stable formulations, the demand for water-based metallic pigments continues to grow. What is the difference between water-based aluminum paste and water-based aluminum granules?
This news article will provide you with a concise and easy-to-understand expert answer.

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What Is Water-Based Aluminium Granule?

Water-Based Aluminium Granule is an all-solid SiO₂-coated aluminum pigment designed for safe handling and easy dispersion. Unlike traditional pastes, the granule form is dust-free and VOC-free, making it ideal for precision formulations.

Key Features

• Granular, non-paste solid form

• Coated with SiO₂ for excellent storage stability

• Disperses directly in water, alcohol, or alcohol ether

• Suitable for high-performance inks such as food packaging ink or cigarette packaging ink

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What Is Water-Based Aluminium Paste?

Water-Based Aluminium Paste is produced by treating aluminium powder with special inorganic or organic coatings to minimize gas generation and enhance dispersion stability.

Typical Characteristics

• Soft paste form, easy to integrate into coating systems

• Available in passivated, single-coated, and double-coated grades

• Narrow particle size distribution for uniform metallic effects

• Ideal for waterborne coatings requiring smooth laydown

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Key Differences Between Paste and Granule

1. Physical Form

2. Storage Stability

• Granule → better long-term stability due to SiO₂ surface treatment

• Paste → stable but more sensitive to temperature and resin compatibility

3. Application Focus

• Paste → coatings, automotive finishes, protective films

• Granule → high-end inks, food packaging inks, cigarette packaging inks

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Application & Performance Comparison

Water-Based Aluminium Paste Applications

• Industrial waterborne coatings

• Wood coatings

• Anti-corrosion coatings

• General metallic decorative finishes

Water-Based Aluminium Granule Applications

• High-performance printing inks

• Food packaging inks (due to VOC-free structure)

• Precision applications requiring clean dispersibility

Performance Insights

• Leafing paste provides higher water resistance and stronger reflectivity

• Flake aluminium powder-based paste delivers smoother metallic effects

• Granules provide superior dispersion for ink industries

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FAQ

1. Is Water-Based Aluminium Granule safer than paste?

Yes. Its dust-free, VOC-free solid form makes it safer and easier to store.

2. Can both products be used in coatings?

Paste: Yes, commonly used
Granule: Typically not recommended for coatings; targeted for inks.

3. How does SiO₂ coating improve performance?

It enhances oxidation resistance, storage stability, and compatibility with waterborne systems.

4. Are the prices different?

Generally, aluminium granule may be higher due to additional SiO₂ processing and higher purity requirements.

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Conclusion – Choose the Right Product with an Expert Team

Understanding the difference between Water-Based Aluminium Paste and Water-Based Aluminium Granule helps formulators achieve better performance, stability, and compliance.

As a global manufacturer with 30+ years of experience, ZHANGQIU METALLIC PIGMENT CO., LTD provides tailored solutions for coatings, inks, plastics, and more.

Contact us for free samples & technical support:
Email: info@zqmetallic.com
Website: https://zqmetallic.com/