The Outdoor Expansion Type Steel Structure Fireproof Coating (Water-Based) is a high-performance intumescent coating specially developed for exterior steel structures.
Product Introduction
The Outdoor Expansion Type Steel Structure Fireproof Coating (Water-Based) is a high-performance intumescent coating specially developed for exterior steel structures. When exposed to fire, the coating expands into a dense, stable carbonized foam layer, effectively insulating the steel and prolonging its load-bearing capacity. Its water-based, low-VOC formulation is environmentally friendly while offering excellent weather resistance, ensuring reliable protection in outdoor conditions. Designed to meet modern fire safety standards, it combines durability, fire resistance, and sustainability for diverse outdoor construction projects.
Product Details
This coating is formulated with advanced fire-retardant additives, high-quality resins, and weather-resistant fillers. It can be applied by spraying, brushing, or rolling, producing a smooth and uniform film with strong adhesion to steel substrates. The system is designed to withstand ultraviolet (UV) exposure, rain, and temperature fluctuations. Dry film thickness varies according to fire-resistance rating requirements (e.g., 1.5–3.5 mm for 30–120 minutes of protection). It is usually applied over an anti-corrosion primer and can be finished with a weather-resistant topcoat for enhanced durability and decorative appeal.
Product Advantages
Reliable Fire Protection: Provides up to 2–3 hours of fire resistance for outdoor steel structures.
Water-Based & Eco-Friendly: Low odor, non-toxic, safe for workers and the environment.
Weather Resistance: Excellent resistance to UV radiation, rain, and outdoor atmosphere.
Strong Adhesion: Prevents cracking, peeling, and delamination under long-term service.
Lightweight: Thin-film coating reduces additional structural load.
Versatile Finish: Can be overcoated with decorative paints to match architectural design.
Product Features
Expands 20–30 times its original thickness when exposed to fire.
Resistant to outdoor aging and long-term climate exposure.
Compatible with various primers and topcoats.
Easy to apply, quick to dry, and simple to maintain.
Available in neutral or light colors for design flexibility.
Product Applications
This outdoor fireproof coating is widely used in:
Bridges, airports, and transportation hubs.
Large-span steel structures such as stadiums and exhibition halls.
Industrial facilities, warehouses, and chemical plants.
Outdoor commercial buildings and public facilities.
High-rise steel towers and infrastructure projects.
Factory Shipment
Our factory follows strict production and quality control standards to guarantee performance and consistency. Each batch undergoes fire-resistance testing, weathering evaluation, and adhesion checks. The product is packed in 20kg or 25kg sealed pails to ensure stability during storage and transport. We provide fast delivery schedules, bulk supply, and customized packaging solutions for international clients.
FAQ
Q1: What is the shelf life of this product?
A1: The shelf life is 12 months in unopened containers stored in a cool, dry place.
Q2: Can it be used directly on steel without primer?
A2: A corrosion-resistant primer is recommended for best adhesion and durability.
Q3: Is it necessary to apply a topcoat?
A3: Yes, for outdoor projects, a UV- and weather-resistant topcoat is recommended to extend service life.
Q4: What fire ratings can it achieve?
A4: Depending on thickness, it can achieve 30, 60, 90, or 120 minutes of fire resistance.
Q5: Is it safe for workers during application?
A5: Yes. Being water-based, it is low-VOC and safer to apply with proper ventilation and protective equipment.
