How to Prevent The Coating From Cracking And Hollowing after Painting?

The environmental temperature and relative humidity for the construction of steel structure fireproof coating should comply with the requirements of the coating product manual. When there are no requirements in the product manual, the construction environment temperature should be between 0-45 ° C, the relative humidity should not exceed 90%, and the air should be well ventilated. When the wind speed is greater than 5m/s, rainy days, or when there is condensation on the surface of the component, it is not easy to carry out construction. Before applying fireproof coating, the dust, oil stains, scales, rust spots, welding slag, burrs, etc. on the surface of the component should be cleaned up. It is strictly prohibited to carry out coating operations on damp surfaces, if not in accordance with standard requirements. Cracking, hollowing, and even detachment are prone to occur during the construction process.