Novol Novakryl H5140 Fast Hardener (500ml) – High-Speed Curing for 540 Express Clearcoats
Get back on the road faster with the Novol Novakryl H5140 Hardener. This specialized activator is the dedicated partner for Novol Novakryl 540 Express Clearcoat, creating a high-performance system designed specifically for Smart Repairs and rapid panel refinishing.
As a Fast (Express) Hardener, the H5140 is engineered to trigger rapid chemical cross-linking, allowing the clearcoat to reach operational hardness in record time, even in ambient workshop temperatures.
Key Features & Benefits:
- Express Curing Speed: Dramatically reduces booth time; the Novakryl 540 system achieves operational hardness in just 20 minutes at 60°C or 8 hours at 20°C.
- Precision Compatibility: Specifically formulated to work with Novakryl 540, ensuring the clearcoat retains its high-gloss and scratch-resistant (SR) properties.
- Ideal for Spot Repairs: The quick "out-of-dust" time makes it perfect for small, fast repairs where minimizing airborne contamination is a priority.
- UV & Weather Stability: Ensures the final finish does not yellow or lose its deep gloss over time, even when exposed to harsh environmental conditions.
- Enhanced Flow: Despite its speed, it maintains the excellent leveling properties required for a factory-smooth finish.
Application Strategy
The Novol H5140 is designed for efficiency. When mixed with the 540 Clearcoat, it allows for a "one and a half coat" application - one thin grip coat followed by one full wet coat - speeding up the painting process without sacrificing the build or protection of the finish.
Pro Tip: Due to the fast nature of this hardener, it is highly recommended for use on 1-3 panels max. For full-body resprays or in extremely high temperatures, a standard-speed hardener might be preferred to maintain a "wet edge" during application.
