5Outdoor thin steel structure fireproof coating
Water-based Fire Retardant Coating · Category: Fire retardant coating
Intumescent water-based fire retardant coating for steel structures. Provides certified fire resistance up to 2.5 hours, expanding under heat to form a protective char layer that insulates steel from extreme temperatures.
Key Features
- Fire resistance rating up to 2.5 hours
- Water-based, low VOC, low odor
- Compatible with most anti-rust primers
- Indoor and outdoor applications (with topcoat)
- Smooth finish, easy to spray, brush or roll
Typical Applications
Building steel structuresIndustrial facilitiesWarehousesOffshore platformsPower plants
Technical Specifications
| Type | Water-based intumescent |
|---|---|
| Color | White / off-white |
| Solid content | ≥ 65% |
| Fire rating | 30-150 minutes (depending on DFT) |
| Dry to touch | ≤ 2 hours @ 25°C |
| Adhesion | Excellent on primed steel |
| VOC | < 50 g/L |
| Coverage | 1-2 m²/kg @ 1000μm DFT |
Application Notes
Surface preparation: Remove all oil, grease, dirt, and loose rust. Abrasive blast to Sa 2½ (ISO 8501-1) for best results, or power tool clean to St 3 minimum. Apply on dry surface with substrate temperature at least 3°C above dew point.
Mixing: Stir component A thoroughly, then add component B (if applicable) in the correct ratio. Mix with mechanical stirrer for 3 minutes until uniform. Pot life varies by product, typically 2 hours at 25°C.
Application: Airless spray is recommended for best results. Brush or roller suitable for small areas and touch-up. Apply in even, wet coats to specified DFT. Do not exceed recommended film thickness to avoid sagging.
Storage & Safety
Store in original sealed container between 5-35°C, away from direct sunlight and freezing. Shelf life is 12 months from date of manufacture in unopened container. Refer to product SDS for detailed safety, handling, and first-aid information. Use appropriate PPE during application.
