Learn how to apply fire retardant coatings

Summary:

Learn how to apply fire retardant coatings:

Scratch coating method: Use metal or non-metal scraper, such as hard rubber sheet, fiberglass scraper, horn scraper It is used for scraping all kinds of high-build fire retardant coatings and putty by hand.

Roller coating method: The roller is a hollow cylinder with a small diameter, and the surface is glued with long fluff made of synthetic fibers. Two washers are installed at both ends of the cylinder, and the center has a hole. The curved handle passes through this hole. Dip the roller into the paint first, then roll hard onto the desired surface. Now develop a roller coating device that uses an air compressor to transport paint.  

Brush method: Brush method is suitable for painting objects of any shape, most fire retardant coatings Can be constructed in this way. The brushing method can easily penetrate into the pores of the metal surface, thus enhancing the adhesion to the metal surface.

Spraying method: A construction method that uses compressed air and a spray gun to atomize the paint. It is characterized by spraying The quality of the finished coating is uniform and the production efficiency is high. The key equipment for air spraying is the spray gun. Spray guns are usually divided into three types: gravity type, suction type and pressure feeding type according to the coating supply method, and are divided into small and large types according to the spraying capacity. If the paint has high viscosity and requires high air pressure, the nozzle should be large-diameter; if the paint has low viscosity and requires low pressure, the nozzle should be small-diameter. The air pressure of air spraying is generally 0.3~0.6MPa.