Nippon Paint Penetrative Epoxy Primer is a high-performance, two-pack solvent-based epoxy primer specifically modified for deep penetration into concrete substrates. Formulated with a specialized adhesion promoter, it significantly enhances the bond between the concrete surface and subsequent epoxy or polyurethane topcoats. It is an ideal solution for sealing porous concrete and re-strengthening weak or chalky substrates, providing a stable foundation for polymer overlays. Its low viscosity ensures it reaches deep into the capillaries of the concrete, making it a critical component for long-lasting industrial, commercial, and residential flooring systems.
Paint Type: Solvent-based (Two-pack Epoxy)
Finishing: Gloss (as a primer film)
Color: Clear / Specific colors available (refer to Protective Coatings color card)
Binder: Epoxy Resin
Thinning: Not applicable / Ready to use after mixing components
Touch Dry: 2 – 3 Hours
Hard Dry: 16 Hours
Recoating Interval: Minimum 4 Hours
Theoretical Coverage: 7.0 m² per litre (at 50 microns DFT)
No. of Coats: 1 coat
Shelf Life: Up to 24 months in a tightly sealed container
Application Method: Apply using a high-quality Brush or Roller.
Mixing: This is a two-component product consisting of a Base and a Hardener. Mix the two parts thoroughly according to the specified ratio using a mechanical stirrer to ensure a uniform consistency.
Pot Life: Once mixed, the product must be used within its specified pot life (refer to technical datasheet for temperature-specific pot life).
Cleaning: Clean all tools and equipment with an appropriate solvent-based thinner (e.g., Nippon SA-65 Thinner) immediately after use.
Note: Ensure the application environment is well-ventilated. Do not apply if the substrate is damp or if rain is expected shortly after application.
Primer (1 Coat): Nippon Paint Penetrative Epoxy Primer.
Intermediate (Optional): Hi-Ponyl AD High Build or compatible epoxy intermediate.
Finishing (2 Coats): PU Recoatable Finish or compatible solvent-based epoxy topcoat.
General Cleaning: Surfaces must be structurally sound, dry, clean, and free from oil, grease, dirt, and loose contaminants.
New Concrete: Must be cured for at least 28 days before application. Moisture content should be below 6% (measured by Kett HI-520) and pH level between 7 and 9.
Mechanical Preparation: For optimal penetration and adhesion, concrete laitance should be removed via light grinding, captive shot blasting, or diamond grinding to achieve an open-textured surface.
Weak Concrete: For dusty or weak concrete surfaces, ensure all loose material is removed. The penetrative nature of this primer will help bind the remaining sound substrate.
Dryness: The substrate must be completely dry. Trapped moisture can interfere with the penetration process and lead to adhesion failure.
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