Guangzhou New Baiyun Airport Terminal
Airport terminal steel structure · Guangzhou — Baiyun District
Guangzhou New Baiyun Airport's terminal uses about 21,000 t of steelwork and was designed for a 30-year coating life. Exterior steel uses an arc-sprayed aluminium build-up, interior steel an inorganic zinc silicate system, with thin-film fire protection added up to 8 m above floor level (2-hour rating). The case is taken from Kansai's public project brochure.
Project overview
The main terminal of the new Baiyun Airport measures 325 m × 235 m and uses about 21,000 t of steelwork beneath roughly 165,000 m² of roof. Designed for a 30-year coating life, it is a representative early Chinese hub-airport steelwork protection project. It is documented in Kansai's case book (infrastructure volume).
Corrosion-protection challenges
- The main building's chevron composite columns rise 14.7–35.7 m, and the long-span steel roof places high demands on adhesion and durability;
- Interior and exterior zones are managed differently — exterior topcoats must resist UV, interior coatings also serve as fire protection (2-hour rating);
- Welds and high-strength bolt nodes need on-site touch-up while keeping the system continuous.
Coating system
| Location | System | Design parameter |
|---|---|---|
| Exterior steelwork | Arc-sprayed aluminium 150 µm + epoxy sealer 30 µm + MIO epoxy 100 µm + acrylic polyurethane topcoat 60 µm | 30-year coating life |
| Interior steelwork | Inorganic zinc silicate primer 80 µm + epoxy sealer 30 µm + MIO epoxy 100 µm + polyurethane topcoat 60 µm | Thin-film fire protection added up to 8 m above floor (2 mm, 2 h) |
The table reflects the system or system direction stated in the manufacturer's material; specific products and film thicknesses are governed by the project's technical documents.
Sources
Kansai Industrial Anti-Corrosion Coatings case book (infrastructure volume, p. 9); published literature on the terminal's steelwork protection design.
Related product categories
Related products
Brand involved
The projects shown are documented in the coating manufacturers' own public material, and the coating work was carried out within the manufacturers' own systems. They are provided purely as a technical reference on coating application and have no supply, application or other connection with RichTech Industrial Technology (Shanghai) Co., Ltd.
Not sure which product fits? Tell us the substrate and service conditions
Share your substrate, corrosivity category and target service life — we will come back with a coating system and quantity estimate.