Painting of marine paint

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General requirements for ship paint coating process:

Surface treatment of hull raw materials (referred to as first treatment)

1. Interior panels of hull plates, deck slabs, bulkhead slabs, bulwarks, superstructure outer panels, inner floors, and composite profiles should be sandblasted before blanking to meet the Swedish rust standard Sa2.5, and then immediately sprayed with a zinc-rich shop primer for the first coat.

2. The interior surfaces of the hull should also be sandblasted to reach Sa2.5 standard and immediately coated with a zinc-rich shop primer.

3. After surface treatment, the shop primer must be applied as soon as possible, and direct painting on the steel surface is strictly prohibited.

Second treatment

Surface treatment of the hull with primer or other coatings (second treatment)

1. If the primed surface of the hull is damaged or defective, it should be treated according to the procedures outlined in Schedule 1.

2. When repainting the hull that has already been primed or coated, the surface must be treated twice, following the standards specified in CB*3230-85.

Proper surface preparation and timely application of primers are essential to ensure long-term protection and durability of the ship's structure. Following these guidelines helps maintain high-quality finishes and prevent corrosion over time. It is important to strictly adhere to the recommended procedures during both initial and secondary treatments to achieve optimal results.

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