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Applications of Aluminum Paste in the Coil Coating Industry

Applications of Aluminum Paste in the Coil Coating Industry

October 18, 2025

1. What is Coil Coating?

Coil coating is a specialized coating used to coat steel and aluminum surfaces, after the pre-coated coil is formed. Aluminum generally requires only a single coat, while galvanized steel and cold-rolled steel require a primer and topcoat.

 

 

2. Requirements for aluminum pastes for coil coatings:

① Common particle size: 8-10μm fine white and imitation electroplating, 20μm/40μm saprkling

② Coverage: Good coverage is required, and high white brightness is not particularly required

③ Cleanliness: Coil coatings are baked varnishes, so cleanliness requirements are high and must be free of impurities

④ Adhesion: Good adhesion is required, and pigments must not flake off

 

 

3. Recommended Products

① Based on customer requirements and user feedback, we recommend Fine white 3508, sparkling 5784, 5770, and 5760.

② For some coil coatings requiring exceptional weather resistance, we recommend using resin-coated aluminum silver paste.

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