Method for improving fire resistance of color steel tile
A technology of color steel tile and fire resistance, which is applied in fireproof coatings, devices for coating liquid on the surface, coatings, etc., to achieve the effects of improving fire resistance, good anti-seepage effect, and high sunlight resistance
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Embodiment 1
[0015] A method for improving the fire resistance of color steel tiles, comprising the following steps:
[0016] (1) Use 200-mesh and 400-mesh sandpaper to polish the protective paint on the surface of the color steel tile to roughness, and wipe it with oil solvent, which contains 0.5% urea and 1.5% ammonia water, and the rest is gasoline , after wiping, use oxalic acid solution with a mass concentration of 1.0% to scrub, and finally rinse with clean water and dry in hot air;
[0017] (2) Brush two layers of anti-rust primer on the surface of the color steel tile after surface treatment. In the primer, epoxy resin accounts for 45%, basic lead chromate accounts for 8.5%, and the first layer of anti-rust primer film The amount is 120 g / m2, and after brushing, dry it under hot air at 40°C for 4 hours, then apply the second anti-rust primer, the coating amount is 80 g / m2, and dry naturally after brushing;
[0018] (3) Spray the refractory material after the second primer is appli...
Embodiment 2
[0023] A method for improving the fire resistance of color steel tiles, comprising the following steps:
[0024] (1) Use 200-mesh and 400-mesh sandpaper to polish the protective paint on the surface of the color steel tile to roughness, and wipe it with oil solvent. The oil solvent contains 0.65% urea and 1.7% ammonia water, and the rest is gasoline , after wiping, use oxalic acid solution with a mass concentration of 1.1% to scrub, and finally rinse with clean water and dry in hot air;
[0025] (2) Brush 2 anti-rust primers on the surface of the color steel tile after surface treatment. In the primer, epoxy resin accounts for 46%, basic lead chromate accounts for 8.8%, and the first anti-rust primer film The amount is 125 g / m2, and after brushing, dry it under hot air at 45°C for 5 hours, then apply the second anti-rust primer, the coating amount is 85 g / m2, and dry naturally after brushing;
[0026] (3) Spray the refractory material 11 hours after the second primer is appli...
Embodiment 3
[0031] A method for improving the fire resistance of color steel tiles, comprising the following steps:
[0032] (1) Use 200-mesh and 400-mesh sandpaper to polish the protective paint on the surface of the color steel tile until rough, and wipe it with an oil solvent. The oil solvent contains 0.8% urea and 2.0% ammonia water, and the rest is gasoline. , after wiping, use oxalic acid solution with a mass concentration of 1.2% to scrub, and finally rinse with clean water and dry in hot air;
[0033] (2) Brush two layers of anti-rust primer on the surface of the color steel tile after surface treatment. In the primer, epoxy resin accounts for 48%, basic lead chromate accounts for 9.0%, and the first layer of anti-rust primer film The amount is 130 g / m2, and after brushing, it is dried under hot air at 50°C for 6 hours, and then the second anti-rust primer is applied. The film amount is 90 g / m2, and it is naturally dried after brushing;
[0034] (3) Spray the refractory material ...
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