1. Surface Preparation

• First, inspect the concrete surface to check for laitance (fine dust layer on the surface), other contaminants, and damaged epoxy layers. Any defects on the surface should be removed.
• Use a grinder to remove laitance, oil, contaminants, and damaged epoxy layers. This process smoothens the surface and flattens uneven or rough areas.
• After grinding, use a sand grinder to further refine the surface and correct any minor defects or uneven areas. Sanding helps achieve a more precise finish.
• After grinding and sanding the surface, use a vacuum cleaner to thoroughly remove dust and contaminants. This step is essential to clean the surface for subsequent work.
• Once the surface is completely dry, it is ready for the next steps. Ensure there is no moisture or water left, as it may affect the adhesion of coatings.

2. Priming

• Preparation: Stir the paint thoroughly before use to achieve a uniform consistency.
• Precaution: Ensure the correct ratio of the base and hardener is followed to prevent issues such as poor drying or adhesion failure.
• Mixing: After mixing the base and hardener, stir thoroughly with a mixer to ensure even blending before use.
• Application: Use a roller or brush to apply a single coat with a thickness of 50µm on the surface, ensuring that the paint is fully absorbed and the coating is applied evenly. Additionally, areas with high absorption during the first coat should receive an extra layer of primer.

3. Crack Filling

• After priming, apply filler to any cracks on the surface. Use the filler to fill in any cracks or surface defects, spreading it evenly and allowing it to dry. Crack filling smooths the surface and helps subsequent coatings adhere properly. Once the filler has fully cured, sanding may be necessary to level the surface.
  
  
  

4. Intermediate Coating (Epoxy Lining)

• After applying the base coat, wait at least 12 hours before calculating the required amount of epoxy lining based on the coating area and film thickness (1.5mm). Mix the epoxy resin and hardener in the correct ratio. After mixing, use a rake or spatula to apply the mixed epoxy evenly across the surface, ensuring that the coating is spread uniformly.
• If the surface shows uneven color or texture after application, wait for the coating to cure (at least 8 hours at 20°C). If necessary, apply a second layer of liquid to adjust the color and texture to make it uniform.

5. Topcoat Application

• If needed, proceed with the top coat application after sufficient drying time. After 6 to 12 hours of drying at 20°C, inspect the surface and ensure it is fully dry and in good condition before proceeding with the top coat.
• If applying the top coat over an insufficiently dried base coat or over a layer with moisture due to condensation, defects such as bubbles and poor adhesion may occur. Therefore, ensure that the surface is fully dry before applying the top coat.
  
  
  For more details, please refer to the Technical Data Sheet (TDS) or the specifications.