A moisture-proof and stain-resistant acrylic resin coating and its preparation process

By using a specific type of acrylic resin compound and dispersant, the problems of insufficient adhesion and poor water resistance of traditional coatings on alloy substrates are solved, forming a dense paint film and improving moisture-proof, stain-proof performance and gloss.

CN121045890BActive Publication Date: 2026-04-21BAOHONG COATINGS (GUANGDONG) CO LTD
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Patent Information

Application Number
CN202511338258.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-04-21
Estimated Expiration
2045-09-18

AI Technical Summary

Technical Problem

Traditional acrylic coatings have insufficient adhesion to alloy substrates, poor water resistance and moisture resistance, and insufficient molecular density, making it difficult to effectively block the penetration of water vapor and corrosive media, thus affecting long-term protective performance.

Method used

By using a specific type of acrylic resin compounded with a specific dispersant, hydrogen bonds and chemical bonds are formed to improve adhesion, and a dense network structure is formed through cross-linking to block water molecule penetration. At the same time, the dispersant improves the dispersibility of fillers and pigments, forming a dense paint film.

Benefits of technology

It achieves excellent adhesion, water resistance and filling and sealing properties on alloy substrates, and improves the coating's moisture-proof, stain-proof and gloss properties.

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Abstract

This invention belongs to the field of coating technology, specifically relating to a moisture-proof and stain-resistant acrylic resin coating and its preparation process. The moisture-proof and stain-resistant acrylic resin coating comprises 100 parts by weight of a main agent and 20-25 parts by weight of a curing agent. The main agent comprises the following raw materials in weight percentages: dispersant 1.5-3%, butyl acetate 10-15%, xylene 5-10%, filler 10-20%, titanium dioxide 10-20%, carbon black 1-5%, cellulose acetate butyrate 1-2%, anti-settling agent 1-1.5%, leveling agent 0.5-1%, defoamer 0.1-0.5%, with the balance being acrylic resin. The moisture-proof and stain-resistant acrylic resin coating of this invention exhibits excellent comprehensive performance, high filling and sealing properties, strong adhesion to alloys, and good stain resistance, water resistance, and gloss retention.
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