PRODUCT DESCRIPTION

Nippon Paint Penetrative Epoxy Primer is a high-performance, two-pack amidoamine-cured solvent-based epoxy primer specifically engineered for concrete floor surfaces. Formulated with low viscosity, it is designed for deep penetration into the concrete substrate, effectively sealing porosity and re-strengthening weak or powdery concrete. It is enhanced with specialized adhesion promoters to create a powerful bond between the concrete and subsequent coating layers. This primer serves as an essential "tie coat" for solvent-based topcoats like Nippon EA4 Finish and EA7 Finish, ensuring long-lasting durability and preventing peeling in high-traffic environments.

TECHNICAL DATA

• Paint Type: Solvent-based (Two-Pack Epoxy)

• Finishing: Gloss / Yellowish Clear

• Binder: Amidoamine-cured Epoxy

• Mixing Ratio: 1 : 1 (Base to Hardener by volume) or specialized weight ratios (refer to specific pack size)

• Pot Life: 4 hours (at 25°C – 30°C)

• Thinning: Ready for use; thinning is generally not required (Cleaning with SA-65 Thinner)

• Touch Dry: 2 – 3 hours

• Hard Dry: 16 hours

• Recoating Interval: Minimum 4 – 16 hours (depending on temperature); Maximum 7 days

• Theoretical Coverage: 6.25 – 7.00 m² per litre per coat (at 50 microns DFT)

• Shelf Life: Up to 24 months in a tightly sealed container

APPLICATION INSTRUCTIONS

• Mixing: Stir the Base (Part A) thoroughly. Gradually add the Hardener (Part B) and continue stirring until a completely homogeneous mixture is obtained.

• Application Method: Apply using a high-quality Brush or Roller (short nap/mohair roller recommended).

• Technique: Ensure the primer is worked into the pores of the concrete. For extremely porous surfaces, a second coat may be required.

• Cleaning: Clean all tools and equipment with Nippon SA-65 Thinner immediately after use.

• Safety: Ensure the area is well-ventilated. This product is flammable; keep away from heat, sparks, and open flames.

RECOMMENDED COATING SYSTEM

• Primer (1 Coat): Penetrative Epoxy Primer.

• Intermediate Coat (1 Coat): Nippon EA4 Finish / EA9 Finish (if required for build).

• Topcoat (2 Coats): Nippon EA4 Finish / EA7 Finish / FloorShield Series.

• Note: The topcoat should be applied once the primer is tack-free but before it completely hardens (within 7 days).

SURFACE PREPARATION

• General Cleaning: Substrate must be structurally sound, dry, and free from oil, grease, laitance, and other contaminants.

• Acid Etching: It is highly recommended to treat the concrete with a 5% sulphuric acid solution until effervescence stops. Wash thoroughly with clean water and allow to dry completely.

• Moisture Content: The concrete moisture content must be below 4% by weight (measured by a moisture meter).

• Repair: Cracks and hollow spots must be repaired using a suitable epoxy filler before the priming stage.

• Environmental Conditions: Do not apply if the relative humidity exceeds 85% or if the temperature is below 10°C.