Duram NS4 is a premium-quality, solvent-based anti-rust coating engineered to provide long-term protection for steel and iron. Known for its exceptional adhesion and “acid-etch” properties, it chemically bonds to the metal surface to create a rugged, corrosion-resistant barrier that outperforms standard primers in harsh environments.
Key Performance Features
- Active Anti-Corrosive Pigments: Contains high-performance inhibitors that actively stop rust from forming and prevent existing corrosion from spreading.
- Superior “Acid-Etch” Adhesion: Formulated to bite into the metal substrate, creating an incredibly strong mechanical bond that won’t peel or flake.
- Excellent “Hide” & Filling: The high-build formula helps smooth out minor surface pits and imperfections, providing a uniform base for topcoats.
- Quick-Drying Versatility: Touch-dry in approximately 30 minutes, allowing for a fast turnaround on large-scale industrial or domestic projects.
Ideal Applications
- Heavy-Duty Steelwork: Perfect for structural steel, industrial machinery, and agricultural equipment (like tractors and plows).
- Home & Garden: The gold standard for gates, fences, burglar bars, and garage doors.
- Corrugated Iron: Ideal for priming new or weathered galvanized roof sheets and IBR piping.
- Automotive & Marine: Excellent for chassis protection and marine metalwork above the water line.
Product Benefits
- Tough Finish: Provides a hard-wearing matte finish that can be left as is or overcoated with any solvent-based enamel or water-based acrylic.
- UV Resistant: Unlike some primers that degrade when exposed to the sun, NS4 can withstand UV rays for short periods before the final topcoat is applied.
- Available in Key Industrial Colors: Typically available in Red Oxide, Grey, Black, and White to suit your project requirements.
Pro Tip: For the best results on new galvanized iron, clean the surface with Duram NS7 Metal Etch first to remove factory grease. If you’re dealing with heavy, existing rust, use Duram NS1 Rust Buster before applying your NS4 primer.
