Glass flake lining is an important technique used to improve the corrosion resistance of equipment or structures. By using glass flake cement or paint during construction, a corrosion barrier can be formed on the surface of substrates such as metal or concrete. The following are the detailed steps and precautions for the construction of glass flake lining:
Glass flake lining construction
1.Environmental Confirmation:
Ensure that the humidity of the construction environment is below 85% and there is no condensation. Construction is not suitable on windy days, wet surfaces or when the temperature is lower than 5°C.
Confirm that the surface of the equipment or structure being lined is flat and free of oil, rust and scale.
2.Device Check:
Check the smoothness of the tank to ensure that the welds are fully connected, free of undercut defects, and free of sand holes and cracks.
The corners and welds need to be polished to the appropriate groove to ensure that the construction requirements are met.
3.Build scaffolding:
Build scaffolding according to safety requirements to ensure the feasibility and safety of construction.
4.Surface Treatment:
Sandblasting is used to remove foreign substances such as rust and oxide scale on the surface and increase the adhesion between the lining material and the substrate.
The sandblasting pressure is controlled at 6 8kg cm, and the surface roughness after sandblasting should reach SIS SA25 or more standards.
5.Primer application:
The primer should be applied as soon as possible after sandblasting, no later than one day. The primer should be evenly applied to ensure good adhesion to the substrate.
6.Glass flake mastic smearing:
Apply with brushes, rollers or high-pressure airless spraying.
Apply a layer of glass flake cement first, generally with a thickness of 2mm, and then apply a second layer after it solidifies.
7.Topcoat Construction:
After the cement layer has completely dried and cured, it is coated with a coat to enhance the overall protective properties of the anti-corrosion layer.
Precautions for the construction of glass flake lining
1.Material Storage:
Glass flake coatings and hardeners should be stored in a dry, cool environment away from direct sunlight.
2.Construction Safety:
Safety warning signs should be set up in the construction area, and construction personnel should wear appropriate personal protective equipment.
3.Curing time control:
The control of the curing time of the construction material is essential to ensure the quality of the construction and avoid material waste.
4.Bubble Elimination:
Although vacuum stirring technology is used to reduce air bubbles, it is still necessary to pay attention to the problem of bubbles caused by turning and stirring during the construction process.
5.Environmental Protection:
After the construction is completed, measures should be taken to protect the coating from rain and debris washing or people stepping on it.
6.Cleaning and maintenance of construction tools:
After construction, all tools should be cleaned and maintained for the next use.
By following the above construction steps and precautions, you can ensure the high-quality completion of the glass flake lining project, so as to achieve the expected anti-corrosion effect.