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 and Embossed Lining)

• After applying the primer, wait at least 24 hours before calculating the required amount based on the painting area and a film thickness of 0.5mm. Mix the base and hardener of the epoxy lining product in the correct ratio. The mixed epoxy product should be evenly applied using a rake or spatula to achieve a total film thickness of 3mm. Any air bubbles formed during the application can be removed by adding epoxy thinner.
• Additional Coating (2nd Lining Work): If, after the first coat, areas with excessive absorption or uneven film thickness are found, an additional layer should be applied. In some cases, the coating may not have been fully absorbed or the film thickness may not be evenly distributed. To correct these issues and ensure uniform coating, a second lining layer is necessary. This additional coating will improve the consistency of the film thickness and enhance the overall coating quality.
• For areas with frequent vehicle movement, such as the entrance or turns in underground parking lots, apply epoxy embossed lining to provide anti-slip and noise-reducing effects.
• Use of Pattern Roller: Epoxy embossed lining should not be applied using a trowel. It must be applied using a pattern roller to properly form the embossed pattern. The roller creates a uniform embossed pattern, maximizing the anti-slip effect.
• Preventing Substrate Pores: To prevent air bubbles from forming due to substrate pores and to avoid defects caused by contaminants on the substrate, apply DK-140 with a 1mm thickness, then proceed with the second lining (embossed) application.

5. Topcoat Application

• After the intermediate work has cured sufficiently, apply the topcoat if necessary. The epoxy topcoat provides the final protective layer, shielding the floor from continuous load, friction, impact, and other stressors. This layer helps prevent wear and damage.
• Ensure adequate curing time before applying any additional coating or topcoat. Strictly follow the product instructions for optimal result.
  
  
  For more details, please refer to the Technical Data Sheet (TDS) or the specifications.