Carbon steel pipe painting standards

Carbon steel pipe & tube painting

1) Surface treatment standards
1. The surface of carbon steel pipe must be clean, dry and smooth. There should be no rust, grease, dust, water vapor and other impurities.
2. The surface is in a rusty state and requires rust removal.
3. After the surface of the carbon steel pipe has been sandblasted and shot peened, the surface roughness should reach Sa2.5 level.
4. The roughness should be measured after each surface treatment to ensure construction quality.

2) Primer coating standards
1. The primer coating uses anti-corrosion primer and must comply with national standards.
2. The thickness of the primer should comply with national standards, generally not less than 50 microns.

3. After the primer is completely dry, apply the top coat.

3) Topcoat coating standards
1. The thickness of the topcoat coating should comply with national standards, generally not less than 40 microns.
2. The topcoat color should be consistent with the product requirements.
3. The topcoat must be even and there must be no sagging, bubbling, cracking, etc.

The above is an introduction to the painting standards for carbon steel pipes. In order to ensure the anti-corrosion performance and aesthetics of carbon steel pipes, surface treatment, primer coating, topcoat coating and other construction work must be carried out in strict accordance with standards. In the actual process, it is also necessary to pay attention to safety issues during construction operations to ensure the personal safety of workers.

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