Steel structure indoor thick type Fire retardant coating How much is it per ton for fire prevention coating density
The price of one ton thick fireproof coating for steel structure indoor is 40 bags per ton thick fireproof coating for steel structure. The steel structure can be painted with an area of 5-15 square meters. The density of thick fireproof coating for steel structure indoor is 600kg It has good fireproof and thermal insulation properties, and can be used as the fireproof layer of beams, columns, walls, and floors of various building steel structures, tunnels, and reinforced concrete structures. Its fireproof performance, physical and chemical mechanical properties are all up to GB14907-2002.
Spraying interval and angle control of fireproof coating
The fire retardant coating spraying construction must be carried out in several times, and each spraying can only be carried out after the previous coating is completely dry and solidified. The construction environment is well ventilated, and the relative humidity is not greater than 90%. In fine weather, the recoating interval is 24~48 hours; When the wind speed is greater than 5m/s, the relative humidity is greater than 90%, and there is condensation on the surface of the steel structure in rainy days, if there is no other Spraying construction is not suitable for special measures. The spraying operation is under way. In order to avoid falling down due to the excessive thickness of a single coat, which will affect the drying and curing of the entire coat and the quality and beauty of the entire fireproof coating, the spraying thickness of a single coat shall not exceed 1.5mm. The operator must carry a thickness measuring needle with him for measurement to ensure that the single coat does not exceed 1.5mm. The above construction methods shall be repeated repeatedly, Until the thickness requirements specified in the design are met.
When spraying the external corners of components, the vertical base surface can be sprayed from top to bottom or from left to right from the end, and then horizontal spraying can be carried out; When spraying the internal corners, do not directly spray against the corners of the components. First spray from both sides of the corners, vertically from top to bottom, and then spray horizontally. When spraying vertically,
The nozzle should be far away from the top of the angle, so that the generated spray just blends at the top of the intersection, and no sagging will occur; When spraying the beam bottom, in order to prevent the coating falling on the body, stand back as far as possible, and the angle of the spray gun should not be too large, so as not to affect the discharge. If the nozzle is blocked during use, it needs to be dredged with a small bamboo stick to avoid uneven discharge, which will affect the spraying effect. After using the spray gun, immediately use water or diluent clean.
