Structural Steel Fireproof Coating
2.Performance: Excellent heat insulation, strong adhesion to structural steel, fire-resistant, anti-cracking;
3.Application: Load-bearing structural steel in buildings, industrial facilities and public projects;
4.Construction: Spraying, fast curing, adaptable to structural steel surface defects;
5.Parameter: Fire resistance ≥2.3h, compression strength ≥25MPa, adhesion grade 0, anti-aging.
6. +5~40°C; RH≤85%; substrate ≥3°C above dew point.
7. Indoor not UV/weather resistant; outdoor requires UV/weather coating.
8. Indoor only; outdoor >5y needs UV/weather system.
9. Store 5–45°C dry; shelf life water/solvent 12m, cement 6m.
10. Water/cement non-hazardous; solvent (>60°C) flammable UN1263.
11. VOC water≤120g/L; solvent≤650g/L.
- Product Description
Structural Steel Fireproof Coating – Professional Fire Protection for Load-Bearing Steel Structures
When your project needs fire safety for structural steel that you can count on, you need an option that has been used before and worked well. The Henan Banggu Fire Technology Structural Steel Fireproof Coating is enterprise-grade fire resistant and has a ≥2.3-hour fire protection rating, a ≥25MPa shear strength, and a grade 0 adhesive. Based on more than 30 years of experience making coatings, our intumescent fireproof coating quickly grows when it comes into contact with flames, creating a thick carbonised insulation layer that keeps steel from deforming and keeps its ability to hold weight. Certified by ISO 9001, ISO 14001, and ISO 45001, as well as CE, you can be sure of quality that meets international standards.
What Makes Our Fireproof Coating Different?
You're not just buying a covering; you're also buying tested technology that will keep your building safe from fire.
Fire Resistance Performance
When it gets hot, our Structural Steel Fireproof Coating quickly grows bigger to make a tough shield that can't be damaged by heat. This keeps the steel beams, shafts, and frames from getting too hot and breaking. Your buildings stay stable longer during fire situations, which keeps people and property safe.
Environmentally Safe & Low Toxicity
People who work for you and live in the building are safe because you care about them. Our covering does not have any volatile chemicals that are dangerous and meets all global environmental standards. It's great for shopping areas, office buildings, workplaces, and home projects because it has a low smell while it's being applied and almost no smell when it's dry.
Fast Application & Quick Drying
On building projects, time is money. Our coating dries quickly. The top layer is dry in just 50–100 minutes, and the whole thing is fully set in 12–24 hours. This means shorter building times and faster project finish, even when time is limited.
Lightweight & Decorative Finish
Our thin-film coating doesn't add much structure stress, unlike thick, heavy fireproofing materials. You get a smooth, professional finish that comes in white and light grey, or you can ask for a different colour. This keeps you safe from fire and looks good at the same time without sacrificing style.

Technical Specifications
| Parameter | Value |
|---|---|
| Appearance State | Uniform paste/powder, free from impurities |
| Bonding Strength | ≥0.15 MPa |
| Compressive Strength | ≥0.3 MPa |
| Water Resistance | No blistering or peeling after 72 hours |
| Fire Resistance Limit (Thin Type) | 0.5–3 hours |
| Fire Resistance Limit (Thick Type) | 2–6 hours |
| Thermal Conductivity | ≤0.12 W/(m·K) |
| Applicable Substrate | Various steel structural components |
| Construction Temperature | 5–38 °C |
| Theoretical Coating Quantity | 0.8–1.5 kg/m² |
| Coating Thickness | 3–50 mm |
| Storage Temperature | –5–40 °C |
| Toxicity Test | Low toxicity, no irritating odor |
How Our Structural Steel Fireproof Coating Works?
The Intumescent Advantage
Minutes matter when there is a fire. With our intumescent technology, the material quickly foams and expands, making a thick layer of carbonised insulation. This wall stops fires and strong heat, which makes the steel's temperature rise much more slowly. The steel in your structure keeps its load-bearing ability for longer, which keeps the building from falling apart completely and gives people more time to get out safely.
Application Versatility
Our covering can be sprayed on, brushed on, or rolled on. We suggest spraying for big jobs because it is the most efficient way to get a smooth, even finish. The coating sticks very well to steel space frames, columns, beams, and trusses in factories, shopping malls, office buildings, and public places.
Comprehensive Support Throughout Your Project
Pre-Sales Assistance
We provide free product selection consultation and technical documentation support. Our team helps you navigate test reports, certification documents, and project design submissions. You get the right solution for your specific fire protection requirements.
Construction Guidance
Our 24/7 remote technical support ensures smooth installation. You receive standardized installation manuals, construction guidance, and real-time troubleshooting assistance. Whether you're an experienced contractor or tackling your first fireproofing project, we're here to help.
After-Sales Service

We support you through acceptance documentation, fire safety inspection coordination, and long-term maintenance recommendations. Our senior engineers provide tailored construction solutions and fire resistance calculation verification for complex applications.
Why Choose Henan Banggu Fire Technology?
With 20 million RMB in investment and more than three decades of coating expertise inherited from Henan Tiantan Anti-corrosion Co., Ltd., we deliver reliability you can trust. Our facility in Changyuan City—China's "Capital of Anti-Corrosion"—benefits from excellent transportation networks and strong industrial resources.
We hold land and sea transportation permits for efficient domestic and international shipping. Our flexible OEM and ODM services allow you to customize logos, packaging, colors, and branding for rapid market entry.
Most importantly, we're guided by the philosophy: "Quality Wins Customers, Reputation Creates Value, and Sincerity Builds Long-Term Cooperation." You're not just a transaction—you're a valued partner.
FAQ
Q1: What is fireproof intumescent coating?
A: The coating immediately foams and expands to produce a dense carbonised insulating layer that prevents flames and heat when exposed to fire. This reduces steel temperature increase, guaranteeing your steel structure doesn't quickly lose stability during a fire and meeting the fire resistance rating.
Q2: What distinguishes solvent- and water-based coatings?
A: Fast drying, great adhesion, water resistance, and hardness characterise solvent-based coatings. Indoor projects requiring strength and weather resistance benefit from them. Water-based coatings are greener, smell less, dry slower, and have lesser water resistance.

Q3: Is this coating compliant?
A: Yes. Our product meets national standard GB 14907-2018 "Fireproof Coatings for Steel Structures" and has a national fire protection product test report for fire safety inspections.
Q4: Can I apply this coating outside?
A: The product is only for indoor usage. Outdoor applications require UV- and weather-resistant intumescent or non-intumescent fire-retardant coatings.
Q5: Will fire safety inspectors approve this coating?
A: Your coating will usually pass fire safety assessments with adequate application thickness and documentation (test results, certificates of conformity, factory inspection records). Acceptance documentation and fire safety coordination are our services.
Contact Us
Ready to protect your steel structures with Structural Steel Fireproof Coating? Contact us at banggu@bgfireproof.com for technical consultation, free samples, and customized solutions for your project.
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