Novol 99511 Ultra Hardener (160ml) – The Perfect Activator for Ultra Fuller 100
Complete your primer setup with the Novol 99511 Ultra Hardener. This 160ml unit is the dedicated second component (activator) required to chemically cure the Novol Ultra Fuller 100 acrylic primer.
Specifically measured for the 800ml primer tin, this hardener ensures the mixture reaches its full structural integrity, chemical resistance, and ease of sanding. Without this precise activator, the primer will not harden correctly, leading to "soft" spots and total paint failure.
Key Features & Benefits
- Precision Volume: The 160ml size is exactly calculated to match the 800ml Ultra Fuller 100 tin at the required 5:1 mixing ratio.
- Engineered Chemistry: Formulated to trigger the cross-linking process in Ultra Line acrylic resins, ensuring a rock-hard finish that won't shrink.
- Standard Curing Speed: Provides a balanced working time (pot life) at room temperature, giving you enough time to spray large panels without the product thickening in the gun.
- UV & Chemical Stability: Contributes to the overall durability of the primer layer, helping it resist environmental degradation once overcoated.
- Leak-Proof Seal: Designed for long-term storage, keeping the sensitive isocyanates inside fresh until you are ready to mix.
Professional Mixing Strategy
To get the most out of your Ultra Fuller 100 system, follow these mixing guidelines:
- The Perfect Ratio: Pour the entire 160ml of 99511 Hardener into a full 800ml tin of Ultra Fuller 100. This achieves the 5:1 ratio perfectly.
- Stirring: Mix thoroughly for at least 1–2 minutes, ensuring you scrape the sides and bottom of the container.
- Thinning (Optional): Once the hardener is fully incorporated, you can add Novol Ultra Thinner (approx. 10–20%) to reach your desired spraying viscosity.
- Strain It: Always pour the mixed product through a 125-micron or 190-micron paint strainer into your spray gun to remove any micro-clumps.
Expert Insight: Hardener is sensitive to humidity. Once opened, the moisture in the air can start to degrade the product. Always keep the cap tightly sealed and try to use the contents within a few weeks of opening for the best chemical performance.
