Novol N90042 Classic Epoxy Primer (3:1) – Grey, 1.0 Litre
The Novol N90042 Classic Epoxy Primer is a high-performance, two-component (2K) anticorrosive primer designed to provide the ultimate foundation for automotive and industrial paint systems. This 1.0-litre unit is the perfect size for single-panel repairs, motorcycle restorations, or spot repairs where long-term rust prevention and superior adhesion are the top priorities.
Renowned for its "barrier-effect" sealing properties, this epoxy primer chemically passivates the metal surface, making it the most effective defense against moisture and oxidation currently available.
Key Features & Benefits
- Industry-Leading Corrosion Protection: Infused with advanced anticorrosive additives that create an airtight seal, stopping rust from forming even in harsh coastal or salted-road environments.
- Exceptional Adhesion: Bonds aggressively to "difficult" substrates, including bare steel, aluminium, galvanized steel, stainless steel, and old sanded paint finishes.
- Superior Insulating Properties: Acts as a chemical barrier that prevents "frying" or lifting when applying modern paints over older, sensitive finishes.
- Wet-on-Wet Versatility: When mixed with Novol N65521 Epoxy Thinner, it can be applied as a smooth, non-sanding sealer, allowing you to move to basecoat in just a few hours.
- High Filling Power: In its standard mix, it effectively fills minor surface pitting and sanding marks (P180–P240), providing a dense, stable base for high-build fillers or topcoats.
- Chemical Resistance: Highly resistant to water, oils, salts, and mild acids, making it the standard choice for chassis and underbody protection.
Professional Application Tips
- The 3:1 Rule: Use the Novol N39699 3:1 Measuring Stick. Epoxy is chemically sensitive; "guessing" the ratio will result in a soft finish or poor adhesion.
- Induction Time: After mixing the primer and hardener, stir thoroughly and let it sit for 10–15 minutes before spraying. This "rest" ensures the chemical reaction is stable for a smoother flow.
- Preparation: Sand the metal with P120–P180 for maximum mechanical "key." Degrease thoroughly with Novol N65503 Silicone Remover immediately before spraying.
- Drying: Epoxy dries slower than acrylic. At 20°C, wait 12–24 hours before sanding. If you are in a hurry, use infrared (IR) heating to speed up the cure.
Why Choose Novol Classic Epoxy?
While acrylic primers are great for filling, they are porous and can eventually let moisture reach the metal. Only an epoxy like N90042 provides a truly waterproof seal. For any restoration project where you want the repair to last for a decade rather than a season, this 1-litre primer is your essential first step.
