Two-component epoxy heavy-duty anticorrosive paint and preparation method thereof

Through the specific formulation and process design of the two-component epoxy anti-corrosion paint resistant to strong acids and alkalis, the problems of corrosion resistance and construction complexity of existing epoxy coatings in extreme environments have been solved, achieving efficient and environmentally friendly multi-substrate coating protection.

CN122146139APending Publication Date: 2026-06-05SHENZHEN QIONGBA WATERPROOF TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN QIONGBA WATERPROOF TECH CO LTD
Filing Date
2026-05-08
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing epoxy coatings have insufficient corrosion resistance in extreme chemical environments, are complex to apply, and are difficult to apply to various substrates. In addition, traditional solvent-based coatings have high VOC content, and water-based coatings have shortcomings in terms of corrosion resistance and drying speed.

Method used

A two-component epoxy heavy-duty anti-corrosion paint resistant to strong acids and alkalis is adopted. Through specific epoxy resin compounding, polyamine synergistic curing network, functional filler composite structure and high solids content and low VOC formulation design, a coating system integrating primer and topcoat integration, multi-substrate adhesion, super chemical corrosion resistance and low VOC emissions is constructed.

Benefits of technology

It achieves the simultaneous cathodic protection of the primer and the resistance to strong acids and alkalis of the topcoat in a single coating, is suitable for a variety of substrates, extends service life, reduces construction difficulty and maintenance costs, and meets environmental protection requirements.

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Abstract

The application relates to the technical field of paint, in particular to a two-component epoxy strong-acid-and-strong-base-resistant heavy-duty paint and a preparation method thereof, which comprises a main paint and a curing agent, the main paint contains a compounded system of bisphenol A epoxy resin and bisphenol F epoxy resin, a composite diluent, a functional filler synergized by flaky glass flake and spherical filler, a silane coupling agent and a special anti-rust pigment; the curing agent is compounded by polyamide, phenolic amine, modified alicyclic amine and modified aliphatic amine, the paint has high solid content and low VOC, has strong adhesion to various substrates, has a bottom-surface-combined function in a single coating layer, is resistant to strong acid, strong base and extreme corrosive environment, is simple to construct, is fast to cure and has a long service life.
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