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First, use coarse-grain sandpaper (P40-P80) for rough sanding to completely remove rust or old paint film. Then, use medium-grain sandpaper (P120-P180) for secondary sanding to reduce the deep marks left by the coarse sandpaper and provide a good adhesion surface for anti corrosive epoxy primer.

Due to the anti-biological adhesion function of antifouling marine coatings, the frequency of cleaning the bottom of the ship is effectively controlled. On ships using antifouling marine coatings, the bottom of the ship hardly needs to be frequently cleaned and seaweed, shellfish and other organisms are removed.

Marine anti corrosion paint is a paint specially designed to prevent corrosion in the marine environment. Its ingredients include various chemicals such as resins, pigments, solvents, fillers and additives. Each ingredient has different functions and characteristics.

Chemicals contained in self polishing antifouling paint: 1. Polymer matrix 2. Antifouling active substances 3. Fillers and additives 4. Solvents The polymer matrix is ​​the main component of self-polishing antifouling paint and directly determines the dissolution behavior and durability of the coating.

For anti slip paint, full cure usually takes 24 to 48 hours, and in some cases, it may take longer (such as 72 hours or more), especially when the coating is thick or the environmental conditions are not favorable.

Commercial transport ships, especially large ships such as tankers, container ships, and bulk carriers, are often exposed to seawater during long-term voyages. Since these ships need to sail for a long time in a large area of ​​sea, the bottom of the ship is exposed to seawater for a very long time, so antifouling bottom paint is essential for them.

Zinc-rich anti-rust paint is an anti-rust paint that is particularly suitable for saltwater environments. The zinc layer can not only isolate the metal from contact with external corrosive substances, but also, when mechanical damage occurs, the zinc layer itself can continue to protect the metal substrate from corrosion through the "sacrificial anode" effect.

Common types of anti-corrosion primers: 1. Epoxy primers 2. Polyurethane primers 3. Alkyd primers 4. Zinc-rich primers 5. Phosphate primers There are many types of anti-corrosion primers on the market, each with its own unique composition and function.

Common types of anti-rust paints are 1. Zinc-rich primer 2. Epoxy primer 3. Iron oxide red primer 4. Polyurethane paint In the selection of anti-rust paints, there are many types available on the market, and each paint has its specific anti-rust mechanism and applicable scenarios.

Epoxy anticorrosion primer is particularly suitable in the following cases: Highly corrosive environment Marine environment Heavy industrial equipment Buried pipelines and storage tanks Bridges and building steel structures Concrete protection