I would like to ask whether there is a reliable method for using fiberglass-reinforced plastic for corrosion protection in steel structures with square grooves that are prone to deformation

The FRP coating is an effective anti-corrosion method, particularly suitable for combating chemical corrosion and moisture. First, ensure that the surface of the steel structure is clean, dry, and free of oil, then apply a specialized primer to enhance adhesion. After that, fiberglass material can be used for covering, usually by spraying or hand-laying. If it is taken into account that the rectangular groove may undergo slight deformation due to temperature changes or mechanical forces, reinforced fiberglass can be used, with an increased fiber content to enhance its tensile and impact resistance. In addition, other anti-corrosion measures can also be considered, such as: 1. Stainless steel coating: Replacing or adding a stainless steel layer to the surface of the existing steel structure. 2. Thermal spraying galvanizing: creates a robust protective layer, suitable for various environments. 3. Epoxy resin coating: It possesses good chemical stability and corrosion resistance. It is recommended to choose the most suitable anti-corrosion method based on the specific usage environment and budget. .

Fiberglass becomes quite hard after curing; if the square groove deforms, the fiberglass layer will break. To prevent the groove from deforming, some method of reinforcement is necessary. If reinforcement is difficult, a flexible anti-corrosion coating can be used; if a thicker anti-corrosion layer is required, fluorocarbon or plastic lining, or Halar lining can be employed, while if a thinner layer is sufficient, spray-on coatings can be used. There are many other anti-corrosion coatings to choose from.