Novol N65521 Classic Epoxy Thinner – 1.0 Litre
The Novol N65521 Classic Epoxy Thinner is a specialized solvent blend specifically engineered for use with the Novol Classic Epoxy Primer (N65203). While many technicians attempt to use standard acrylic thinners, epoxy resins require a specific chemical solvency to break down their high viscosity without affecting the anti-corrosive properties or the final cure of the primer.
This 1.0-litre unit is the essential "third component" for fine-tuning your epoxy application, whether you are looking for a heavy-duty high-build layer or a smooth, non-sanding "wet-on-wet" sealer.
Key Features & Benefits
- Dedicated Epoxy Chemistry: Formulated to be 100% compatible with epoxy resins, preventing "clumping," "seeding," or separation during the mixing process.
- Viscosity Optimization: Allows the primer to flow out smoothly, which is critical for epoxy systems that naturally tend to be thicker and more "orange-peel" prone than acrylics.
- Wet-on-Wet Versatility: By increasing the thinning ratio (typically up to 20%), N65521 allows the epoxy primer to be used as a thin, glass-smooth sealer that can be overcoated without sanding.
- Enhanced Atomization: Helps the spray gun break the heavy epoxy into a fine mist, ensuring total coverage in tight corners, welds, and complex chassis sections.
- High Purity Solvent: Contains no recycled materials or moisture, ensuring the moisture-sensitive epoxy curing process is never compromised.
- Consistent Evaporation: Designed to "flash off" at a controlled rate, preventing solvent entrapment which can lead to blistering or loss of adhesion in later stages.
Application & Mixing Pro Tips
- The 3-Step Mix: First, mix the Epoxy Primer (N65203) with the Epoxy Hardener (N65252) at a 3:1 ratio. Stir thoroughly. Only after the primer and hardener are combined should you add the N65521 Thinner.
- Induction Time: After adding the thinner and stirring, let the mixture sit for 10–15 minutes. This "rest" allows the thinner to fully integrate with the activated resins for a more stable spray.
- Nozzle Choice: If you thin by 5–10%, use a 1.6mm – 1.8mm nozzle for high-build protection. If you thin by 15–20%, use a 1.3mm – 1.4mm nozzle for a smooth sealer coat.
- Cleaning: This thinner is also the most effective solvent for cleaning your spray gun immediately after using epoxy products, as standard thinners may struggle to dissolve cured epoxy residue.
Why Is N65521 Essential?
Epoxy is the most durable layer of your paint system, but it is also the most chemically "fussy." Using a standard acrylic thinner (like N65511) in an epoxy primer can lead to a "soft" finish that never fully cures or, worse, loses its chemical resistance. The Novol N65521 ensures that the laboratory-tested durability of your epoxy primer remains 100% intact.
