Descrição
STI-A is a high-performance indoor non-intumescent fire retardant paint for steel structures, featuring a two-component, cement-based, water-based formulation that utilizes non-toxic, odorless inorganic materials to ensure no harmful emissions during application, service, or fire incidents. This premium fireproof coating delivers exceptional passive fire protection with low smoke emission (AQ1 certified) and minimal toxicity, effectively delaying heat transfer to steel substrates while maintaining structural integrity during fires. With 1-3 hour fire ratings compliant to GB14907-2018 standards and CCCF certification, this non-combustible solution is ideal for industrial plants, commercial buildings, and infrastructure projects requiring reliable indoor steel fire protection. The coating’s low thermal conductivity provides superior resistance to temperature transfer, making it a safe, durable choice for critical structural applications where smoke suppression and environmental safety are paramount.
Key features:
✔ Pouco fumo e toxicidade – Minimal smoke emission (AQ1 certified)
✔ Passive fire protection – Delays heat transfer to steel substrates
✔ Non-combustible & low thermal conductivity – Effectively resists fire for 1-4 horas
✔ Wide compatibility – Works with epoxy zinc-rich primers for optimal adhesion
Certifications & Test Reports
STI-A complies with China’s GB14907-2018 standard, offering certified fire ratings:
1.0h, 1.5h, 2.0h, 2.5h, 3.0h, 4.0h
CCCF certified (China Compulsory Fire Product Certification)
Classificação de toxicidade AQ1 (low smoke hazard)
Código do produto | Relatório de ensaio n.º. | Resistência da ligação (MPa) | Classificação de fogo real (h) | Espessura (mm) | Utilização (kg/m²) |
---|---|---|---|---|---|
GT-NSF-Fp1.00-STI-A | Gn201905429G1 | 0.16 | 1.27 | 15 | 9.75 |
GT-NSF-Fp2.00-STI-A | 2019700968A | 0.26 | 2.46 | 25 | 16.25 |
GT-NSF-Fp3.00-STI-A(4h) | 2019700966 | 0.26 | 4.00 | 40 | 26 |
Surface Preparation Guidelines for Indoor Fire Retardant Paint Application on Steel Structures
Primer System Requirements
After sandblasting, steel surfaces must be coated with a compatible anti-corrosion primer system. We recommend the “Jinyu” brand epoxy zinc-rich primer combined with epoxy micaceous iron oxide intermediate coat for optimal adhesion with the indoor fire retardant paint for steel.
Both primer and intermediate coats must form a continuous, unbroken film to completely seal the substrate, preventing potential delamination of the fireproof coating and substrate corrosion.
Teste de compatibilidade de primários alternativos
When using other primer systems, mandatory compatibility testing must be conducted either by certified laboratories or through on-site brush-out tests to ensure proper bonding with the non-intumescent fireproof coating.
Restrições de aplicação
Never apply fire resistant paint for steel directly onto:
Superfícies de aço não impregnadas
Revestimentos galvanizadosDirect application may lead to coating failure and accelerated steel corrosion.
Inspeção prévia ao pedido
Before applying the indoor fire protection coating, thoroughly inspect for:
Cobertura completa do iniciador
Contaminantes da superfície (poeiras, resíduos de óleo)
✓ Structural defects (cracks, inadequate welds)Application of the cement-based fireproof coating should only proceed after passing all inspections.
Guia de aplicação
Camada de base (Texturizada):
Mix STI-A powder : adhesive = 1:1, add water, and spray to 3–4mm thickness. Cure for 24h.
Revestimento principal:
Mix STI-A powder : adhesive = 4–5:1. Spray in 6–8mm layers (0.5–0.6m nozzle distance, 0.6–0.8MPa pressure).
Reforço:
Com uma espessura de cerca de 10 mm, colocar uma rede de fibra de vidro (sobreposição de 5-10 cm).
Ambiente:
Temperatura: 15-30°C (limites: 5-35°C).
Humidade: 10-70% (limites: 0-80%).
Armazenamento e transporte
Store in dry, ventilated areas (≥5°C).
Prazo de validade: 6 months (avoid moisture).
Embalagem
Cada embalagem inclui:
Fire product ID label (A-tag) + verification label (B-tag).
GT NSF FP STI-A fire retardant paint being professionally applied to steel beams at an industrial facility, with workers in safety gear ensuring even coating coverage for optimal fire protection. Close-up detail of GT NSF FP STI-A non-intumescent fireproof coating on structural steel columns, highlighting its smooth finish and adherence to ASTM safety standards in a commercial construction project. Project Case: Beijing Daxing International Airport Fireproof Coating Application
The Beijing Daxing International Airport project (2017-2021) utilized advanced fireproof coatings, including STI-A and BTCB-1, to protect critical structural components of its 207-meter span terminal. Our solutions ensured compliance with the highest fire safety standards, enhancing the airport’s resilience and passenger safety. This landmark project highlights our expertise in delivering reliable fire protection for world-class infrastructure.
Project Case: Fuzhou Digital China Convention & Exhibition Center High-Rise Fireproof Coating Application
This project involved the application of premium fireproof coatings (STI-A, SB-2, and BTCB-1) to a 217-meter high-rise structure in 2018. Our solutions provided critical fire protection for the building’s structural elements, ensuring compliance with stringent safety regulations while enhancing the building’s overall fire resistance. The project demonstrates our capability to deliver reliable fireproofing solutions for modern skyscrapers.