Beskrivning
STI-C represents China’s pioneering water-based inorganic outdoor fire retardant paint for steel structures, delivering exceptional hydrocarbon fire resistance while maintaining outstanding environmental credentials. As the country’s first exterior-grade non-intumescent fireproof coating, this innovative solution combines a non-toxic, asbestos-free and VOC-free formulation with proven performance – capable of withstanding over 15 annual seasonal cycles in harsh outdoor environments. The coating provides superior passive fire protection for various structural steel profiles including H-beams, featuring AQ1-certified low smoke emission and minimal toxicity during fire incidents. With GB14907-2018 certification and CCCF compliance, this mature-technology product offers reliable thermal insulation for critical infrastructure applications such as railway stations, industrial plants, power facilities and petrochemical complexes. Its unique water-based inorganic composition ensures both exceptional fireproofing performance and environmental safety, making it the preferred choice for sustainable steel protection in demanding outdoor conditions.
Key features include:
Excellent fire resistance – Proven performance with mature production technology.
Superior weather resistance – Withstands over 15 seasonal cycles in open environments.
Low smoke & toxicity – Minimal smoke emission and low toxicity during fires.
Wide applications – Suitable for H-beams and various steel structures in railway stations, industrial plants, metallurgy, power facilities, petrochemical plants, and more.
Test Reports & Certifications:
STI-C complies with China’s GB14907-2018 fire resistance standard, achieving certified耐火时长 (fire ratings): 1.0h, 1.5h, 2.0h, 2.5h, 3.0h. It also holds:
CCCF certification from the National Emergency Management Ministry.
AQ1 toxicity rating for low smoke hazard.
| Produktkod | Cert. Nej. | Bond Strength (MPa) | Faktisk brandklassning (h) | Tjocklek (mm) | Användning (kg/m²) |
|---|---|---|---|---|---|
| GT-WSF-Ft1.50-STI-C | Z2020081809000573 | 0.34 | 1.5 | 24 | 15.6 |
| GT-WSF-Ft2.00-STI-C | Z2020081809001030 | 0.34 | 2.0 | 29 | 18.85 |
| GT-WSF-Ft3.00-STI-C | Z2020081809000572 | 0.34 | 3.0 | 38 | 24.7 |
Surface Preparation Requirements for Outdoor Fire Retardant Paint Application on Steel Structures
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Primer System Application
- After sandblasting, steel surfaces must be coated with a compatible anti-corrosion primer system. We specifically recommend the “Jinyu” brand epoxy zinc-rich primer combined with epoxy micaceous iron oxide intermediate coat to ensure proper adhesion with the outdoor fire retardant paint for steel.
- Both primer and intermediate coats must form a continuous, defect-free film to completely seal the substrate, preventing potential delamination of the fireproof coating and steel corrosion.
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Kompatibilitetstest för alternativa primrar
- When using other primer systems, comprehensive compatibility testing must be conducted either by certified laboratories or through on-site brush-out tests to verify proper bonding with the weather-resistant fireproof coating.
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Begränsningar för ansökan
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Never apply the outdoor fire resistant paint directly onto:
✓ Obehandlade stålytor
✓ Galvaniserade beläggningar - Direct application may compromise coating performance and accelerate substrate corrosion.
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Never apply the outdoor fire resistant paint directly onto:
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Inspektion före ansökan
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Prior to applying the hydrocarbon fire resistant coating, conduct thorough inspections for:
✓ Fullständig primertäckning
✓ Ytföroreningar (damm, oljerester)
✓ Structural integrity (cracks, weld defects) - Proceed with the industrial fireproof coating application only after passing all quality checks.
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Prior to applying the hydrocarbon fire resistant coating, conduct thorough inspections for:
Application Guide:
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Base Layer (Textured):
- Mix STI-C powder : adhesive = 2:1, add water, and spray to 1–3mm thickness. Cure for 24h.
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Main Coating:
- Mix STI-C powder : water = 1:0.8–1.2. Spray in 6–8mm layers (max 0.6m nozzle distance, 0.6–0.8MPa pressure).
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Förstärkning:
- At ~10mm thickness, embed fiberglass mesh (5–10cm overlap).
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Miljö:
- Temperatur: 15-30°C (gränsvärden: 5-35°C).
- Luftfuktighet: 10–70% (limits: 0–80%).
- Avoid rain/snow; protect unfinished areas.
Storage & Transport:
Store in dry, ventilated areas away from sunlight and moisture.
Hållbarhetstid: 6 months (≥5°C).
Förpackning:
Each package includes:
Fire product ID label (A-tag).
Verification label (B-tag) on the quality certificate.


Project Case: Ordos Guotai Chemical Plant Fireproof Coating Application
The Ordos Guotai Chemical Plant project (2014-2015) implemented STI-C fireproof coating across its 157-meter structural components to ensure critical fire protection in high-risk industrial environments. Our solution delivered durable, high-temperature resistance while complying with strict chemical industry safety standards, demonstrating effective fire safety management for hazardous facilities. This project highlights our expertise in specialized industrial fireproofing applications.
Project Case: Chongqing Raffles City Fireproof Coating Application
The Chongqing Raffles City complex (2017-2018) utilized STI-A and STI-C fireproof coatings to protect critical structural elements of its 207-meter towers. Our advanced fire protection solutions ensured compliance with international safety standards while maintaining architectural integrity in this mixed-use urban development. The project demonstrates our capability to deliver high-performance fireproofing for landmark skyscrapers in dense urban environments.







