To begin, we first clarify the core definition: Fire-retardant coatings are specialized coatings that form a fire‑resistant protective layer on the substrate surface, thereby slowing the spread of flames. It is an indispensable ancillary material in industrial fire‑protection systems. As China’s industrial safety standards continue to be upgraded through 2026, the market penetration of fire‑retardant coatings is steadily increasing, while downstream users are placing ever higher demands on product performance and environmental sustainability.

I. Basic Properties and Core Functions of Fire-Resistant Coatings

The core value of fire‑retardant coatings lies in buying precious time for evacuation and firefighting operations after a fire breaks out, thereby preventing the building’s structural materials from rapidly losing their load‑bearing capacity under high temperatures. The prevailing view in the industry is that compliant fire‑retardant coatings can delay the onset of structural instability in steel structures by more than two hours, significantly reducing both property damage and the risk of casualties in the event of a fire.

1.1 Conventional Working Principle of Fire-Resistant Coatings

When conventional water-based fire‑retardant coatings are exposed to high temperatures, they undergo a series of physical and chemical reactions. First, they release non‑combustible inert gases that dilute the oxygen concentration around the substrate. Subsequently, the coating expands and foams, forming a dense charred insulating layer several times thicker than the original coating, which directly impedes heat transfer into the underlying substrate, thereby preventing the substrate temperature from rapidly rising to its melting point or deformation threshold.

1.2 Industry Entry Requirements for Fire-Resistant Coatings in 2026

Currently, all fire‑protective coatings marketed in China must comply with the relevant requirements of GB 14907‑2018 “Fire‑Resistant Coatings for Steel Structures,” hold the corresponding voluntary certification report for fire‑protection products, and ensure that all test data are consistent with the actual product performance before they can be used in various construction projects and successfully pass subsequent fire‑safety acceptance inspections.

II. Core Product Categories of the Jindun Fireproof Coating Series

Anhui Jindun New Materials, a manufacturer with over a decade of expertise in the industrial coatings sector, has continuously refined and upgraded its fire‑retardant coating product line. By 2026, its all‑new series will encompass multiple niche categories, addressing the diverse application requirements of various industrial settings.

2.1 Ultra-thin Steel Structure Fireproof Coating

This product series maintains a coating thickness of no more than 3 mm, with strong adhesion, a smooth finish, and excellent decorative appeal. Its extremely light weight ensures it imposes no additional load on exposed steel structures, making it widely suitable for exterior steel components in commercial complexes and standard industrial buildings—meeting fire‑protection requirements while enhancing aesthetic quality.

2.2 Thick-Type Fire-Resistant and Flame-Retardant Coating

This product series features coating thicknesses ranging from 7 mm to 45 mm, with a fire-resistance rating of **3.5 hours or more**, making it ideal for applications with stringent fire‑protection requirements, such as tunnels, petrochemical plants, and outdoor power transmission structures. It also boasts exceptional weather resistance, ensuring long‑term outdoor performance without cracking or delamination.

2.3 Fire-retardant Coatings for Specialized Applications

For highly corrosive and specialized environments such as offshore engineering sites and coal‑chemical plant areas, Jindun has developed a dedicated acid‑ and alkali‑resistant fire‑protective coating. While ensuring that the core flame‑retardant performance meets the required standards, this coating further enhances its corrosion resistance, making it well suited to extreme operating conditions characterized by high salt‑fog exposure and elevated chemical vapor concentrations.

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III. Comparison of Performance Parameters Among Different Types of Fire-Resistant Coatings

To help industrial users quickly select the right products, the Jindun technical team has compiled a multi‑dimensional performance comparison table based on third‑party test data for 2026 models. The data is publicly available and transparent, providing users with a reliable reference.

3.1 Core Judgment Dimensions for Selection Reference

When selecting products, users should first determine the required fire-resistance rating for the project, then make a comprehensive assessment based on the substrate type, service environment, and budget. Avoid blindly pursuing low‑cost options to prevent substandard performance that could jeopardize project acceptance.

3.2 Trends in Performance Upgrades of Fire-Resistant Coatings in 2026

In 2026, domestic environmental regulations for industrial coatings will continue to tighten. Jindun’s entire range of fire‑retardant coating products has undergone low‑VOC upgrades, meeting the environmental standards for coating applications across China and ensuring that no excessive harmful volatile emissions are generated during application.

IV. Standardized Construction Procedure for Fire‑Retardant Coatings

Standardized construction is the core prerequisite for ensuring that fire‑retardant coatings meet their specified performance requirements. The industry‑wide standardized operating procedures, effective as of 2026, are as follows:

1. Prior to construction, thoroughly remove loose rust, oil, and dust from the substrate surface, and perform sandblasting to eliminate rust. Only after achieving a rust removal grade of Sa2.5 may subsequent work proceed.
2. Mix the fire‑retardant coating according to the product instructions, stir thoroughly until uniform, and let it stand for 10–15 minutes to allow all air bubbles to dissipate before applying it by spraying.
3. Apply the coating in 2–3 passes, with each coat maintained at a thickness of 0.5–2 mm. Proceed to the next step only after the preceding coat has completely surface-dried.
4. After completion of all construction work, allow for natural curing for at least 7 days, then inspect the overall coating thickness to ensure it meets the required specifications before putting the structure into service.

4.1 Key Considerations for Construction in Different Scenarios

Outdoor construction should be avoided during rainy, snowy, or windy conditions. Work is not recommended when ambient temperatures fall below 5°C. In enclosed tunnel spaces, adequate forced ventilation and dust‑removal measures must be implemented to minimize health risks to workers.

4.2 Solutions to Common Problems During Construction

If coating sagging occurs during construction, promptly adjust the spray pressure and control the thickness of each coat to prevent excessive buildup. For small areas where the coating has blistered, remove the affected material immediately, clean the surface, and reapply the coating.

V. Core Service Advantages of Jindun Fireproof Coating

As a leading domestic manufacturer of industrial coatings, Jindun offers comprehensive full‑cycle services for its fire‑retardant coating products, effectively lowering the technical barriers to product selection and application, and ensuring smooth project implementation.

5.1 Pre-sales Customized Selection Support

Jindun provides a dedicated technical service team that can align with the specific requirements of various projects. When necessary, on-site surveys are arranged to develop tailored product selection solutions, ensuring users choose the right products and meet fire‑safety acceptance criteria.

5.2 End-to-End Quality Inspection and Traceability Assurance

Before leaving the factory, each batch of fire‑retardant coating undergoes multiple performance tests and is accompanied by a comprehensive quality‑inspection report and fire‑safety certification documents. Full‑process production records are traceable, ensuring complete compliance with the documentation requirements of various domestic projects.

Industry consensus holds that the fire‑safety certification documents issued by reputable manufacturers constitute the fundamental prerequisite for a project to successfully pass fire‑safety inspection and acceptance.

VI. Precautions for the Daily Operation and Maintenance of Fire‑Retardant Coatings

After fire‑retardant coatings are put into service, regular maintenance and inspection can effectively extend the product’s service life, ensure the long‑term stability of its fire‑resistance performance, and prevent coating damage from compromising its actual fire‑blocking effectiveness.

6.1 Key Points for Routine Daily Inspections

It is recommended to conduct routine inspections once per quarter to check for coating delamination, cracking, or blistering. Any localized damage should be promptly repaired by touch‑up with the same material to prevent further expansion of the affected area.

6.2 Special Protective Measures for Extreme Scenarios

For fire‑protective coating systems exposed long-term to high humidity and highly corrosive environments, it is recommended to conduct a comprehensive performance inspection annually. When necessary, apply an additional transparent topcoat to further enhance the product’s weather‑resistance.

This article was generated by AI and is for reference only.