Nippon Paint EA4 Finish: High-Performance Protective Epoxy Coating

PRODUCT DESCRIPTION

Nippon Paint EA4 Finish is a high-quality two-pack, amine-adduct cured epoxy coating designed for exceptional durability on both metal and concrete surfaces. Engineered to withstand demanding environments, EA4 Finish provides a hard, glossy film that offers superior resistance to abrasion, impact, and a wide range of chemicals, including oils, solvents, and alkalis.

Ideally suited for industrial floorings, steelwork, and internal tank linings, this epoxy coating ensures long-lasting protection against corrosion and wear. Its versatile formula makes it a top choice for factories, warehouses, laboratories, and workshops where a clean, hygienic, and resilient surface is paramount.


 

TECHNICAL DATA 

1. Product Type: Two-pack amine-adduct cured epoxy (Base and Hardener).

2. Finish: High Gloss.

3. Mixing Ratio: 4 parts Base to 1 part Hardener (by volume).

4. Pot Life: 6–8 hours after mixing (at 25-30°C).

5. Drying Time (at 30°C): * Touch Dry: 2 hours.

   • Hard Dry: 16 hours.

6. Theoretical Coverage: 9.0 m² per litre (at 40 microns DFT) to 6.0 m² per litre (at 60 microns DFT).

 APPLICATION INSTRUCTION

1. Mixing: Stir the Base thoroughly. Add the Hardener and continue stirring until the mixture is completely uniform. Allow a 10–15 minute induction time (sweat-in time) before starting the application.

2. Application Methods:

   • Brush/Roller: Ideal for smaller areas; thin up to 10% with Nippon SA-65 Thinner for better workability.

   • Airless Spray: Recommended for large areas (Tip size: 0.015”–0.017” at 140–170 kg/cm²).

3. Thinning: Use only Nippon SA-65 Thinner. For spray application, thin 5–10% as needed; for brush/roller, thin no more than 5% to maintain film thickness.

RECOMMENDED COATING SYSTEM (2-3 Points)

• For Concrete Floors:

  • Primer: 1 coat of Nippon EA4 Finish (diluted 15% with SA-65 Thinner to act as a sealer).

  • Finish: 2 coats of Nippon EA4 Finish.

• For Steel Surfaces:

  • Primer: 1 coat of Nippon EA9 Red Oxide Primer or Zinc Phosphate Blast Primer.

  • Finish: 2 coats of Nippon EA4 Finish.

• For Tiles/Non-Porous Surfaces:

  • Primer: 1 coat of Nippon Tile Primer or Nippon Ultra Sealer III.

  • Finish: 2 coats of Nippon EA4 Finish.

SURFACE PREPARATION

1. General Cleaning: The surface must be dry and free from grease, oil, dirt, and other contaminants. Use solvent cleaning (SSPC-SP1) for oily residues.

2. Concrete Substrates: Concrete must be cured for at least 28 days. Remove laitance and loose material via acid etching, light grit blasting, or mechanical grinding to ensure a porous surface.

3. Steel Surfaces: For best results, abrasive blast to Sa 2½. If blasting is not possible, mechanical cleaning to St 3 (power tool cleaning) is required.

4. Moisture Check: Ensure concrete moisture content is below 6% (measured by a Sovereign moisture meter) and air humidity is below 85%.

5. Previously Painted Surfaces: Remove all loose or flaking paint. For existing epoxy coatings, the surface must be thoroughly sanded or abraded to provide a mechanical "key" for the new layer