How to Use Epoxy on a Concrete Floor

Updated on Mar 21, 2025

Applying epoxy to a concrete floor can improve its appearance, durability, and resistance to stains, chemicals, and wear. Follow this step-by-step guide to ensure a smooth and long-lasting result:


🧼 Step 1: Prepare the Surface

  • Remove dirt, grease, oil, and any coatings from the concrete.
  • Use a degreaser and a stiff brush to scrub the floor.
  • Rinse thoroughly and allow the surface to dry completely.
  • Repair any cracks or holes before proceeding.

💧 Step 2: Test for Moisture

  • Use a moisture meter or follow the manufacturer’s recommended test method.
  • Excess moisture can interfere with epoxy bonding and cause failure.
  • Only proceed once the surface is confirmed dry.

🛠️ Step 3: Etch or Mechanically Prepare the Surface

  • Concrete needs to be textured for proper adhesion.
  • Options include:
    Etching with an acidic solution or etching compound
    Grinding or shot blasting for mechanical surface prep
  • Always wear PPE and follow safety instructions for prep materials.

🖌️ Step 4: Apply a Primer (If Required)

  • Some epoxy systems perform best with a primer coat.
  • Apply evenly with a roller and allow it to cure fully as per the product's instructions.
  • This step improves adhesion and coverage.

⚗️ Step 5: Mix the Epoxy Resin

  • Carefully mix the resin and hardener in the correct ratio.
  • Use a clean mixing container and stir slowly to avoid air bubbles.
  • Follow the epoxy manufacturer’s timing and mixing instructions precisely.

🧹 Step 6: Apply the Epoxy Coating

  • Use a roller, brush, or squeegee to apply the epoxy in manageable sections.
  • Work systematically to ensure even coverage and thickness.
  • Use a brush for edges and corners for clean detail work.

Step 7: Add Decorative Flakes or Additives (Optional)

  • While the epoxy is still wet and tacky, sprinkle in:
    Colour flakes
    Anti-slip additives
    Metallic or reflective elements
  • This adds visual interest, texture, and durability.
  • Let the layer cure per product instructions before adding more coats.

Step 8: Allow to Cure & Apply Additional Coats (Optional)

  • Let the epoxy cure for the full recommended time — often 12 to 24 hours.
  • You can apply additional coats for a thicker, more durable surface.
  • Always follow curing times between coats.

🧴 Step 9: Apply a Topcoat (Optional)

  • For added protection and a professional finish, apply a clear topcoat.
  • Options include glossy, satin, or matte finishes.
  • This step improves resistance to wear, UV, and chemicals.

🕒 Step 10: Final Curing

  • After the last coat is applied, allow the surface to cure completely.
  • Final cure time may range from 3–7 days, depending on conditions.
  • Avoid heavy traffic, cleaning, or moisture exposure during this time.

⚠️ Important Tips for Success

  • Always wear gloves, goggles, and work in a well-ventilated area.
  • Follow your epoxy brand’s specific instructions for the best results.
  • Proper surface prep is key to long-term durability.