S355J0H seamless steel pipe needs maintenance and regular anti-corrosion treatment during application. The most common treatment is rust removal, the following is a detailed introduction of derusting method for S355J0H seamless steel pipe.
1. Rust removal of S355J0H seamless steel pipe
Before the primer is applied, the surface of S355J0H seamless steel pipe shall be cleaned of oil dirt, ash, rust and scale. The quality standard of sand blasting is Sa2.5.
2. After rust removal, primer shall be applied to the surface of S355J0H seamless steel pipe, and the interval between them shall not exceed 8 hours. The base surface shall be dry when applying primer. The primer shall be applied evenly and fully, and there shall be no clot and blister. The paint shall not be applied within the range of 150-250mm at both ends of S355J0H seamless steel pipe.
3. After the primer is dry, apply the top coat and wrap the glass fiber cloth, and the interval between the primer and the first top coat shall not exceed 24 hours.
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