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If the old paint is in good condition and the new and old paints are compatible, the new paint can be applied directly by cleaning and sanding. However, if the old paint is severely damaged, incompatible or the paint layer is too thick, it is recommended to completely remove it to ensure the performance of the new coat.

Copper ions can interfere with the cell metabolism and respiration process of aquatic organisms, inhibit the growth of algae, shellfish, plankton and marine microorganisms, thereby preventing these organisms from attaching to the bottom of the hull.

The impact of harmful substances in marine antifouling paint on the marine ecosystem is one of the main reasons for prohibiting its use. The marine ecosystem is complex and sensitive, and harmful substances in marine antifouling paint may destroy the balance of this system.

The waterproof effect of polyurethane waterproof paint is closely related to the number of layers applied. In building construction, it is usually recommended to apply 2 to 3 layers of polyurethane waterproof paint to ensure that the coating thickness is uniform and dense to achieve the best waterproof effect.

The best bottom paints for epoxy resin paint are: 1. Epoxy bottom paint 2. Polyurethane bottom paint 3. Alkyd bottom paint 4. Inorganic zinc silicate bottom paint

The answer is yes! Under the premise of meeting the appropriate construction process, material selection and function enhancement (especially anti-slip treatment), marine paint is fully capable of long-term protection of decks.

Common types of bottom paint for rusty metal are: 1. Zinc-rich bottom paint 2. Epoxy bottom paint 3. Polyurethane bottom paint 4. Acrylic bottom paint 5. Phosphate bottom paint

For some special ships, such as merchant ships or fishing boats, which have long sailing time and are usually in a harsh environment, these ships may require thicker antifouling paint coatings, and the coating thickness is generally between 250 and 300 microns.

The drying time of polyurethane waterproof paint is divided into three parts: surface drying time (4 to 8 hours), actual drying time (24 to 48 hours), and complete curing time (7 days).

Micaceous iron oxide is a natural mineral that is processed to form a flaky iron oxide pigment. Its main component is Fe₂O₃, and its color is usually gray-black or silver-gray. The flaky structure enables it to form a fish-scale-like arrangement in the paint, enhancing the barrier properties of the paint film.