Indoor intumescent fire retardant coating for steel structure
2.Performance: Heat-insulating, fire-resistant, anti-corrosion, strong adhesion, stable at high temperatures;
3.Application: Steel structures, steel equipment, steel pipelines in industrial and commercial projects;
4.Construction: Spraying, quick curing, adaptable to complex steel surfaces;
5.Parameter: Fire resistance ≥1.7h, temperature resistance up to 1080℃, adhesion grade 1, anti-aging.
6. +5~40°C; RH≤85%; substrate ≥3°C above dew point.
7. Indoor lacks UV/weather resistance; outdoor requires UV/weather topcoat.
8. Indoor use; outdoor >5y needs UV/weather-resistant finish.
9. Store 5–45°C dry; shelf life water/solvent 12m, cement 6m.
10. Water/cement non-hazardous; solvent (>60°C) flammable UN1263 Class 3.
11. VOC: water≤120g/L; solvent≤650g/L compliant.
- Product Description
Indoor Intumescent Fire Retardant Coating for Steel Structure
If your project needs effective fire protection, our Indoor intumescent fire retardant coating for steel structure has been used for over 30 years and has been shown to work. This coating was made by Henan Banggu Fire Technology Co., Ltd., and it can fight fire for up to 2.5 hours with a heat conductivity of only 0.12 W/(m·K). You get enterprise-level safety that meets GB 14907-2018 standards with a bonded strength of at least 0.15 MPa and temperature resistance up to 1080℃. When there is a fire, our coating quickly spreads to form a thick, carbonised barrier that keeps steel parts safe when it means the most.
Why Choose Our Fire Retardant Coating?
Fire Protection That Works
Peace of mind is more important than just following the rules. When exposed to flames, our Indoor intumescent fire retardant coating for steel structure forms a thick layer of insulation.
This shield makes it much harder for heat to move. During fires, your steel beams, supports, and frames will keep the structure strong for longer.
The layer meets fire safety standards around the world. It is safe for use in gyms, shopping stores, office buildings, and factories.
Fast Application, Beautiful Finish
On your project, time is money. This paint dries quickly—the surface is dry in half an hour to an hour.
You'll like how smooth and professional it looks. You can choose from common colours like white or light grey, or you can ask for colours.
Because it is small, it puts less weight on your body. Coverage is thought to be between 1.2 and 1.5 kg/m² per millimetre of thickness.
You can spray it on, brush it on, or roll it on. For big places, spraying is the best way to go because it's quick and even.
Environmentally Responsible Choice
The people who work for you and live in the building deserve safe supplies. Our layer doesn't have any volatile chemicals that are bad for you.
It has been certified as an ISO 14001 Environmental Management System. The amount of VOC stays at 120g/L for water-based forms.
The layer is safe and won't hurt you once it's fully dried. You can use it with confidence in places with a lot of foot traffic.
After drying, there isn't much of a smell. Your project won't get in the way of how the building normally works.
Proven Durability and Performance
Strong adhesive stops things from cracking and peeling. The layer won't crack or powder if you follow the right steps for applying it.
Water resistance is better than options that use water. It works consistently when the humidity inside is modest.
Normal wear and tear don't hurt the hard finish. You can even add a suitable finish to make it look better without lowering the fire safety.
Technical Specifications
| Property | 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/mm |
| Coating Thickness | 3–50 mm |
| Storage Temperature | –5–40 °C |
| Toxicity Test | Low toxicity, no irritating odor |
Application Guidelines
Before You Start
Prepare your steel substrate properly. Remove rust, oil, and contaminants completely.
Ensure ambient temperature stays between 5°C and 35°C. Relative humidity should remain ≤85%.
Don't apply during rain, fog, or high winds. Your substrate temperature must be at least 3°C above the dew point.
During Application
Mix the coating thoroughly before use. Maintain consistent thickness throughout your application.
Allow proper drying time between coats—at least 4 hours. Extend this interval in cooler temperatures.
For different fire resistance ratings, adjust thickness accordingly:
- 0.5h rating ≈ 1.5mm
- 1.0h rating ≈ 1.5–2.2mm
- 1.5h rating ≈ 1.8–3.3mm
- 2.0h rating ≈ 3.0–4.5mm
Safety During Construction
Ventilate work areas adequately. Solvent versions emit fumes during application.
Keep open flames away from the work site. Prohibit smoking strictly.
Provide fire extinguishing equipment nearby. Workers must wear masks, goggles, and gloves.
Comprehensive Support for Your Project
Before Purchase
We offer free product selection consultation. Our technical team helps you choose the right solution for your specific requirements.
You'll receive complete technical documentation—test reports, certification documents, and approval assistance.
During Construction
Get 24/7 remote guidance when you need it. We provide standardized installation manuals with clear instructions.
Our senior engineers can verify fire resistance calculations. They'll help with complex application scenarios.
After Completion
We assist with acceptance documentation and fire safety inspection coordination. Remote troubleshooting is available whenever issues arise.
Enjoy lifetime technical support recommendations. We offer preferential pricing for long-term partners on replenishment orders.
FAQ
Q: How is "intumescent" defined?
A: Fire rapidly foams and extends the covering, creating a dense carbonised insulating layer. This inhibits flames and heat, delaying steel temperature growth. Its steel construction withstands fires, meeting the fire resistance rating.
Q: What's the difference between solvent- and water-based versions?
A: Solvent-based coatings dry faster, adhere better, resist water, and harden. Their strength and rapid drying make them ideal for interior work. The ecologically friendly water-based variants have lesser odour, shorter drying periods, and somewhat poorer water resistance.
Q: Does it meet safety standards?
A: GB 14907-2018 "Fireproof Coatings for Steel Structures." is met. Fire safety checks and project acceptance are possible with each batch's national fire protection product test reports.
Q: Can I apply this coating outdoors?
A: No, this product is for indoor use only. Lacks UV and weather protection. Outdoor application requires UV/weather-resistant topcoats or outdoor-specific formulas.
Q: How long does the coating last in storage?
A: Unopened containers last 12 months. Store at 5–45°C in cool, dry, well-ventilated conditions. Avoid heat, direct sunshine, and high temperatures. Solvent-based versions are transportable flammables (UN1263 Class 3).
Contact Us
Indoor intumescent fire retardant coating for steel structure consulting and product samples are available today. Helping you choose the right fire protection system for your project.
Email: banggu@bgfireproof.com.
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