Coating inspection technology for ship surveys

Summary. 3. After surface treatment, the primer of the workshop should be sprayed as soon as possible, and it is not allowed to be painted after rusting on the surface of the steel.

Hello dear, the technical requirements for hull painting are.

1. The outer plate of the hull, the orange deck board, the bulkhead board, the bulwark board, the outer plate of the superstructure, the interior grinding sail board and the blind hail composite profile and other internal plates are shot blasted before blanking to meet the Swedish rust removal standard, and the primer of the zinc-rich workshop is immediately sprayed once.

2. The internal profiles of the hull are sandblasted to meet the Swedish rust removal standard, and the primer of the zinc-rich workshop is sprayed immediately.

3. After surface treatment, the primer of the workshop should be sprayed as soon as possible, and it is not allowed to be painted after rusting on the surface of the steel.

4. The surface of the hull that has been coated with the bottom talk mold paint or other coating wheels and materials should be retreated when further coated, and the grade standard should meet the standard of (CB*3230-85).

5. Before opening the can, you should first check whether the paint variety, brand, color and storage period are consistent with the use requirements, and whether the thinner is rolled and smoothed. Once the can is opened, it should be used immediately.

6. After the paint is opened, it should be fully stirred evenly, and the epoxy paint should be reinforced, stirred thoroughly, and pay attention to the mixing time before construction.

7. During construction, if the paint needs to be diluted, the appropriate thinner should be added according to the instructions of the paint manufacturer, and the amount added is generally not more than 5% of the paint amount.

Make a reference, oh, the above is the technical requirements for hull coating.

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Ship painting is the construction of surface painting after grinding and sandblasting the hull, compartment and accessories of the ship during ship repair, and then carrying out surface painting operations after meeting the requirements of rust, pollution removal and scar removal.

In order to make the ship meet the requirements of the ship code and relevant regulations in all aspects, the ship surveying agency starts from reviewing the design drawings and technical documents for the newly built ship, and conducts inspection, test and sea trial in the process of ship construction, until the issuance of various ship certificates. For classified ships, the manufacturing inspection is also known as the construction classification inspection.

Ship coating is generally a brush, roller, air, airless spraying and scraping and other construction methods.

The constructor should adopt the appropriate coating method according to the nature of the coating, the surface state of the coated object and the environmental conditions, and generally use high-pressure airless spraying in order to improve efficiency and obtain an aesthetic coating film. However, for the painting of small cabins, roller coating or hand painting is still used. Pre-coat the running water holes, the reverse side of the angle iron, and the parts that are not easy to spray with brushes and bend brushes.

The contact parts of different metals and rivets, welds and edges should be brushed first, and then sprayed.