Chemical Resistant Coatings are protective layers of paint that prevent harsh industrial chemicals from damaging substrate surfaces. They protect structures like concrete floors, walls and sumps from direct contact with dangerous and corrosive substances and reduce the risk of serious accidents for people working in proximity to these environments.
Industrial facilities use a wide variety of liquids, gases and substances that must be stored or transported under regulated conditions. These include solvents, acids and alkalis, caustic cleaning detergents, fuel and hydraulic oils and fatty acids and salt solutions. Without a proper protective coating, these substances can be absorbed by the substrate, causing deterioration and eventually leading to corrosion. A high-performance chemical resistant coating provides a barrier that protects the surface from degradation by these substances, while also reducing or eliminating cleaning, repair and replacement costs.
There are a number of different types of chemical resistant coatings available for your specific project and environment. Choosing the right one requires a thorough understanding of both the specific chemical you will be using and the environment in which it will be used.
Chemical Warfare: How Advanced Coatings Shield Against Corrosion and Degradation
Phenolic-based coatings are resistant to a concentrated form of sulfuric acid, hydrochloric acid, transmission fluid, gasoline and numerous other chemicals. They are typically used for tank linings and immersion service and work well at higher temperatures than epoxy or polyurethane coatings.
Fluoropolymer-based coatings are also highly resistant to a wide range of chemicals, including concentrated sulfuric, nitric and hydrochloric acids. They can also withstand a broad range of temperatures, including high heat, and can be applied in a thin layer. Popular fluoropolymer-based chemical resistant coatings are PTFE (Teflon), ETFE and FEP.
