Method of coating anticorrosive paint on steel structure workshop
Steel structure workshops generally require a long service life, so they need to be painted to ensure that the structure is anti-corrosive and anti-rust, so as to improve the service life of the workshop. The anti-corrosion construction and paint selection of different building materials are not the same. Among them, steel structure workshops have higher requirements for anti-corrosion, so today we will learn how to construct anti-corrosion paints for steel structure workshops and which paints should be used.
The anticorrosive paint for steel structure workshops generally uses supporting schemes such as epoxy zinc-rich primer, epoxy intermediate paint, acrylic topcoat or epoxy iron red primer, epoxy mica intermediate paint, polyurethane topcoat, etc., according to anti-corrosion design requirements And age requirements to choose the topcoat.
The plant anti-corrosion paint construction steps are divided into base surface treatment, spray primer, spray top paint.
1. Surface treatment
Firstly, the steel structure should be trusted, sandblasting, pickling and other methods can be used. At the same time, the welding place should be polished to make the metal surface smooth. After the rust treatment is completed, the dust and oil on the surface of the steel structure should be removed to improve the paint. The adhesion.
2. Spray primer
The primer generally uses zinc-rich primer, Hongdan antirust paint or iron red antirust paint. The paint should be configured according to requirements and the paint viscosity should be controlled. When spraying, move evenly from left to right to prevent the paint layer from being too thick.
3. Spray top coat
The topcoat can be sprayed after the primer is dry. Roller, spray, or brush can be used. The paint should be applied evenly, and the layers should be crisscrossed to avoid missing brushes.
The specific construction process should be determined according to the purpose of the steel structure workshop and the selected paint.