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Steel structure fireproof coating is a coating applied on the surface of steel structures of buildings or structures to form a fire-resistant and heat-insulating protective layer. Steel structure fireproof coating can be classified according to the place of use, dispersing medium, fireproofing mechanism, and film-forming substance.
| Classification method | Classifications | Remark |
| Location | Interior Steel Coating | Suitable for indoor or concealed engineering buildings |
| Outdoor Steel Structure Coating | Suitable for outdoor or open engineering buildings | |
| Dispersion medium | Water-based steel structure coatings | Water as a dispersing medium |
| Solvent-based steel coatings | Organic solvents as dispersing medium | |
| Fire protection mechanism | Non-expandable steel coatings | The coating does not expand and foam at high temperatures and becomes a fire-resistant and heat-insulating layer itself. |
| Intumescent Steel Structural Coating | The coating expands and foams in the high-temperature room to form a fire-resistant and heat-insulating insulation layer. | |
| Film-forming substance | Epoxy-based intumescent steel structure coatings | Epoxy resin as a film-forming material |
| Non-epoxy intumescent steel coatings | Non-epoxy materials as film-forming substances |
Remarks:
1. The steel structure of the outdoor or open-air projects should be selected with an outdoor steel structure fireproof coating.
2. The steel structure of outdoor or open-air engineering with harsh environmental conditions should be selected with an outdoor steel structure fireproof coating.
3. steel structure building of ocean engineering and petrochemical engineering shall use outdoor non-intumescent steel structure fireproof coating or outdoor epoxy-type intumescent steel structure fireproof coating.
4. steel structures for ocean engineering and petrochemical engineering may have the risk of jet fire or explosion, so non-intumescent steel structure fireproof coating or epoxy intumescent steel structure fireproof coating should be used.
5. Outdoor steel structure fireproof coating is suitable for applying a coating top coat on the surface of the fireproof coating.
6. Applying a fireproof coating topcoat on the surface of outdoor steel structure fireproof coating can prevent rainwater from penetrating the fireproof coating.
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