Novol 35865 Protect Hardener H5950 (0.8L) – The Essential Catalyst for Protect 360 Epoxy
The Novol H5950 is the dedicated reactive hardener required to activate Novol Protect 360 Anticorrosive Epoxy Primer. This 0.8-litre unit is specifically formulated to create a chemical cross-linking reaction that results in an incredibly dense, non-porous, and chemically resistant protective shield.
Without this specific hardener, the epoxy primer will not cure, and its legendary anti-corrosive properties will not be activated.
The Perfect Mix: 1:1 Ratio
This system is designed for simplicity and maximum performance through a balanced volume mix.
- Mixing Ratio: 1:1 (1 part Epoxy Primer : 1 part H5950 Hardener).
- Precision Matching: This 0.8L hardener is the exact partner for the 0.8L tin of Protect 360 Primer, creating a total of 1.6 Litres of ready-to-spray material.
- No Thinner Required: When mixed at 1:1, the product typically reaches the correct spraying viscosity without additional thinners.
Key Features & Benefits
- Industrial-Grade Corrosion Resistance: Works with the epoxy resins to seal the metal substrate from oxygen and moisture.
- Superior Chemical Bonding: Triggers the high adhesion levels that allow Protect 360 to stick to steel, galvanized steel, aluminum, and stainless steel.
- High Thermal Stability: Contributes to a coating that remains stable under wide temperature fluctuations.
- Long Pot Life: Once mixed at 20°C, the product remains usable for approximately 4 hours, giving you plenty of time for complex spray jobs.
- Isolation Power: Ensures the primer acts as a perfect "barrier coat" to prevent solvent reactions between old paint and new topcoats.
Professional Mixing Strategy
To ensure the epoxy reaches its full "tank-like" durability, follow these steps:
- Agitation: Shake the Protect 360 Primer tin thoroughly before pouring.
- The Mix: In a clean graduated mixing cup, pour equal parts of Protect 360 and H5950 Hardener.
- Induction (Critical): After mixing, wait 5 to 10 minutes before pouring the mixture into your spray gun. This "induction period" allows the chemical reaction to stabilize.
- Application: Apply in 1 to 2 layers.
- For Anti-corrosion: 2 layers
- As an Isolator: 1 layer
Expert Insight: Protect 360 is unique because it allows for polyester putty to be applied directly over it once dry. This makes the 360/H5950 combination the "gold standard" for classic car restorations - you seal the bare metal with epoxy first, then do your body filling on top of the sealed surface for maximum rust prevention.
