How to choose steel structure fireproof coating?
When selecting fireproofing coatings, the following points should be noted? fireproof coating (1) Don't use the finish type fireproof coating for steel structures, the finish type fireproof coating is the fire retardant coating to protect the combustible substrate such as wood structure, and the thin coating film can't reach the purpose of improving the fire resistance limit of steel structure. (2) Thin-coated steel structure intumescent fireproof coating should not be used to protect steel structures with a fire resistance limit above 2.5h. Thin-coated intumescent fire-resistant coating is not too long fire-resistant limit is determined by its own raw materials and fire prevention principles. This type of coating contains more organic components, coating at high temperatures will cause physical and chemical changes, and the formation of carbonaceous bubble film can play a role in heat insulation. Expanded bubble film strength is limited, easy to crack, and fall off, charcoal...