What is Chlorinated Rubber Paint and What are Its Advantages?

Chlorinated rubber paint is a type of thick paste coating, which, along with room temperature cured epoxy resin coatings, is one of the two major systems of anti-corrosion coatings in the world today. Chlorinated rubber paint made from chlorinated rubber resin is used to paint ships, steel structures, bridges, offshore oil drilling platforms, nuclear power plants, containers, and cement building roofs, all of which have excellent protective properties.

Composition of Chlorinated Rubber Paint

Chlorinated rubber paint usually consists of chlorinated rubber resin, modified resin, pigments/fillers, additives, and solvents.

Advantages of Chlorinated Rubber Paint

• Not limited by temperature during construction: chlorinated rubber coatings can be applied in environments ranging from -20 to 50°C, without being limited by season or temperature.

• Convenient to use: most chlorinated rubber coatings are single can packaging systems, and do not require temporary mixing of other components at the construction site. After opening the packaging drum and mixing it uniformly, the coating can be used.

• Quick drying: chlorinated rubber coatings are physically drying coatings that dry by solvent evaporation. The solvent release rate is fast, and after painting, it dries quickly into a film. After 4 to 6 hours at room temperature, the second coat can be applied.

• Thick coating can be obtained: chlorinated rubber thick paste coatings, if sprayed with high-pressure airless spraying, can achieve a dry film thickness of about 55-85μm for each pass. The highest dry film thickness can reach 120μm, so a few less coatings can obtain a thick coating and shorten the construction period.

• Good adhesion: chlorinated rubber coatings have good adhesion to steel and metal surfaces. At the same time, the solvent in the film-forming material can infiltrate between the layers, making them stick together, thereby enhancing the adhesion between the coating layers.

• Good anti-corrosion properties: since chlorinated rubber itself is a chemically inert film-forming material, the permeability of the coating film to water vapor and oxygen is ultra-low, only 1/10 of that of alcohol and acid. Moreover, it has good resistance to water, salt, acid, alkali, oxidants, and various corrosive gases.

• Convenient for maintenance: during maintenance, there is no need to remove the firmly adhered old paint film. The new and old paint films can have mutual dissolution due to the penetration of solvents, which results in strong adhesion. Chlorinated rubber paint can also be applied on some other types of paint films, making maintenance very convenient.

• Good anti-toxicity and flame-retardancy: due to the high content of "chlorine" polymers in the components of chlorinated rubber coatings, it has the property of inhibiting the growth of poisonous bacteria. If the surface of the equipment encounters a fire source, the coating film can decompose chlorine gas, which has a certain flame-retardant effect.