Scraping method: Using metal or non-metal scrapers, such as hard rubber sheets, fiberglass scrapers, and ox horn scrapers, for manual scraping, it is used to apply various high-build fireproof coatings and putties.

Roll coating method: The roller is a hollow cylinder with a small diameter, and its surface is covered with long fluff made of synthetic fibers. The two ends of the cylinder are equipped with two washers, and there is a hole in the middle through which the curved handle passes. When using, the roller is first soaked in the paint, and then rolled onto the desired surface with force. Nowadays, roll coating devices using air compressors to deliver paint have been developed.

Brush coating method: The brush coating method is suitable for painting objects of any shape, and most of Jiangxi Youlinsheng fire-resistant coatings can be applied using this method. The brush coating method easily penetrates into the fine pores of metal surfaces, thus enhancing the adhesion of the coating to the metal surface. The disadvantages are low production efficiency, high labor intensity, and sometimes brush marks remain on the coating surface, affecting the decorative properties of the coating.

Spraying method: A construction method that uses compressed air and a spray gun to atomize paint. It is characterized by uniform coating quality after spraying and high production efficiency. The disadvantage is that some paint is lost, and the health of the operator is affected due to the large evaporation of solvents. The key equipment for air spraying is the spray gun. Spray guns are usually divided into three types based on the paint supply method: gravity type, suction type, and pressure feed type, and are further divided into small and large types based on spraying capacity. If the paint viscosity is high, requiring high air pressure, a large-diameter nozzle should be selected; if the paint viscosity is low, requiring low pressure, a small-diameter nozzle can be chosen. The air pressure for air spraying is generally 0.3~0.6MPa.

   During the practical application of steel structure fire-resistant coatings, some rust may inevitably appear on the surface to varying degrees. Naturally, many friends are interested in learning how to remove rust from these areas.

If you want to remove rust, you must thoroughly wipe the surface of the Jiangxi Youlinsheng fireproof coating and manually polish it to remove rust. This is the simplest way to achieve the result. Of course, if the surface has some loose oxide scale, you can use this method to remove rust, and it can achieve a better removal effect. 

If rust removal for steel structure fire-resistant coatings is carried out mechanically, it is entirely dependent on the use of relevant machinery to eliminate all the oxide layers on the surface of the coatings. A commonly used tool is the rust remover, which can quickly remove surface rust through a wire brush during the rotation of the entire steel material. Only in this way can it provide us with a series of assistance.

If chemical methods are used to remove some rust from the surface of fire-resistant coatings on steel structures, acid solutions are often used for chemical dilution to achieve the purpose of rust removal. However, the selected acid solutions must ensure a certain pH value is maintained. Jiangxi Youlinsheng Fire-resistant Coatings