Painting issues inside the steel storage tank lid: 100~150℃
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What paint is good? What are the requirements for allocation? The cover is made of 20# steel and is exposed to steam at 100–150°C on a daily basis; the medium inside the storage tank is iron oxide, which is acidic. Can epoxy asphalt paint be applied in two coats?
Use high-temperature resistant plastic to make the cover plate.
Apply high-temperature resistant resin, three coats of fabric and five coats of oil.
Steam at 100–150°C – such temperature and medium conditions are unsuitable for both plastics and epoxy asphalt paints. The usual operating temperature for plastics should not exceed 90 degrees, while the appropriate temperature range for epoxy coal tar pitch is generally below 70°C (please check the relevant standards for confirmation). It is recommended to use high-temperature resistant anti-corrosion coatings; by searching online, you can find such coatings offered by various major coating manufacturers.
It was sent twice; thanks to the person on floor 5 – I’ve already purchased a high-temperature paint resistant to 200°C
Agreed. Solution approach: 1) High-temperature paint, but the prerequisite is that it must be able to resist corrosion from acidic media at high temperatures. Many high-temperature paints can withstand high temperatures, but they fail to resist corrosion; therefore, this aspect needs special attention when choosing such paint. 2) Do not use coating-based anti-corrosion methods; instead, use resin-based anti-corrosion solutions, such as fiberglass lining or mortar lining. By selecting the right resin and reinforcing it with fibers or glass flake, there is no problem at all in resisting corrosion from acidic gases at such temperatures. For more details, you can seek answers on 51fangfu.
The substrate is sandblasted to ST2.5 grade (shot blasting is also an option), and then coated with a solvent-free epoxy phenolic anti-corrosion paint; this type of paint has good acid resistance and can withstand high temperatures of 150–180 degrees for extended periods of time. Jinda Special Coatings has this product; it’s a safer option, so you should check it out