Nippon Paint Zinc Phosphate Primer FD is a high-quality, alkyd-based anti-corrosive primer specifically formulated for the protection of iron and steel surfaces. Unlike traditional red oxide primers, this version is enriched with zinc phosphate pigments, which provide superior inhibited corrosion protection through a chemical reaction with the metal surface.
The "Fast Dry" (FD) formulation is engineered for industrial efficiency, allowing for quicker handling and shorter intervals between coating layers. It offers excellent adhesion and forms a robust, matte foundation that is compatible with a wide range of alkyd-based topcoats. It is the ideal choice for structural steel, industrial machinery, and general metalwork in moderately corrosive environments.
Paint Type: Solvent-based (Alkyd)
Finish: Matt
Color: Grey, Reddish Brown, White
Specific Gravity: 1.35 – 1.45 (depending on color)
Theoretical Coverage: 12.0 – 14.0 m² per litre (at 30–35μm DFT)
Drying Time (at 30°C):
Touch Dry: 15 – 30 minutes
Hard Dry: 4 hours
Recoating Interval: Minimum 4 hours
Shelf Life: Up to 24 months in a tightly sealed container
Pack Size: 1 Litre, 5 Litres, 20 Litres
Mixing: Stir the paint thoroughly before use to ensure a uniform distribution of anti-corrosive pigments.
Thinning: Use Nippon General Purpose Thinner.
Brush/Roller: Thin with 5–10% if necessary.
Conventional Spray: Thin with 10–20% for optimal atomization.
Application Method: Brush, roller, or conventional spray. Spraying is recommended for large industrial components to ensure even film thickness.
Cleaning: Clean all tools and equipment immediately with Nippon General Purpose Thinner after use.
For a complete protective system on steel surfaces:
Primer (1 Coat): Nippon Paint Zinc Phosphate Primer FD.
Undercoat (1 Coat): Nippon Paint 9000 Undercoat (Optional, for improved finish).
Topcoat (2 Coats): Nippon Paint Protective Finish FD or Nippon Paint 9000 Gloss Finish.
New Metal: The surface must be dry and free from grease, oil, and dirt. Solvent cleaning is recommended for new steel to remove residual mill oils.
Previously Painted/Rusted Surfaces: Remove all loose rust, mill scale, and peeling paint using wire brushing or power tool cleaning (St 2 or St 3).
Sanding: Lightly sand existing sound coatings to provide a mechanical "key" for the new primer.
Dryness: Ensure the substrate is completely dry before application. Moisture trapped under the primer can lead to premature failure.
Environmental Conditions: Do not apply when relative humidity exceeds 85% or during rain, as this will interfere with the drying and bonding process.
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