Why steel products to be fire-resistant coating of paint? 1. The purpose of fire retardant paint coating. Steel corrosion is slowly, but the fire was quickly indeed destroyed the entire building. So fireproof steel construction is more important than corrosion. According to fire rating requirements, fire retardant paint on the building has been widely adopted. 2. How to paint fire retardant paints and coatings can not be directly painted on the surface of steel structures, steel underside rust request or to the rust to be responsible. Common rust epoxy primer, epoxy zinc-rich primer and inorganic silicate zinc-rich primer. Epoxy primer can be sprayed in the middle of the above in order to increase rust paint, then apply a fire-resistant coating, the thickness depending on the product, or to determine the fire resistance without. In order to have a beautiful and decorative coatings, fire retardant paint above can also be coated with 1-2 layers of acrylic paint. If you are using an epoxy-based fire retardant paint, you can also add coated polyurethane topcoat. General Provisions 3. Make painting (1) fireproof paint protection, by trained qualified professional construction team construction, or have developed the fire-resistant coating to guide the construction of engineering and technical personnel to ensure project quality. After (2) Under normal circumstances, should be installed in place of steel, boom attached thereto, bridleways, pipe racks and other associated components installed and inspected and accepted before embarking spray. Should the advance construction of the steel components were implemented after the lifting spray fire, the installation is damaged after a good response node layer and steel were up spray. (3) Before spraying, steel surface should be rust, and in accordance with the former using four spraying, dust steel surface. Oil. And other debris should be removed. (4) Construction fireproof coatings should be done before the interior will not be damaged under and post-project conditions. (5) For most fire-resistant coating, the construction process and before the coating is dried and cured, the ambient temperature should be maintained at 5 ~ 38 °, not more than 90% relative humidity, air should circulate. When the wind speed is greater than 5m / s, or rain and component surface condensation, not jobs. Dry chemical curing coatings, construction temperature temperature range can be relaxed, such as LG fireproof coatings, may be applied at -5 ° C. (6) thick coating steel structure fire retardant coating: Coating thickness is 7 ~ 45mm, granular surface, smaller density, low thermal conductivity, fire resistance of up to 0.5 ~ 3.0h. Thin coating of steel structure fire retardant coating: Coating thickness not exceeding 3mm, when expansion foam paint a fire, form a dense insulation, fire resistance of up to 0.5 ~ 2.0h. http://www.yntaiyang.com Yunnan Steel | Steel Works Yunnan | Yunnan Steel Design