MR. JO JH 8363 – High Reactivity Phenalkamine for Fast & Reliable Cures
MR. JO JH 8363 – High Reactivity Phenalkamine for Fast & Reliable Cures
In demanding repair and protection projects, time is often the most valuable resource. JH 8363 has been engineered for situations where fast reactivity, reliable curing, and strong adhesion are critical. Designed as a phenalkamine curing agent comparable to NC540i, it strikes the balance between speed and performance for field and factory use alike.
What is JH 8363?
JH 8363 is a high amine value phenalkamine that delivers accelerated cure speed, even in cold, damp, or high-humidity conditions. Unlike conventional polyamines that slow down in adverse weather, JH 8363 keeps working — giving applicators the confidence to finish projects on schedule without compromising strength or durability.
Technical Profile
- Amine Value (mg KOH/g): 390–420
- Viscosity @ 25 °C: 1,800–2,200 mPa·s
- Color (Gardner): ≤14
- Density @ 25 °C: 0.93–0.97 g/cc
- Mix Ratio (phr with Bis-A epoxy resin): 40–45
- Pot Life (100 g @ 25 °C): ~25–30 minutes
- Tack-Free Time: ~4–5 hours (thin film)
- Hardness (Shore D): 75–80 after cure
This unique profile makes it one of the most reactive hardeners in the phenalkamine series, suited for applications where speed cannot be compromised.
Applications
- Industrial floor coatings – where fast return-to-service is essential.
- Protective coatings – shipyards, steel structures, and marine applications.
- Repair systems – crack filling and patch mortars that need fast strength gain.
- Cold weather jobs – reliable performance even near 10 °C with damp substrates.
Why Choose JH 8363?
- High Amine Value – ensures faster reactivity and early hardness.
- Quick Turnaround – short pot life and faster tack-free time save project hours.
- Excellent Moisture Tolerance – bonds strongly to damp concrete or humid surfaces.
- Optimized Mix Ratio (40–45 phr) – delivers performance with lower dosage.
The Bottom Line
For projects that demand fast curing without compromising durability, JH 8363 stands out. With its high reactivity, excellent adhesion, and proven field performance, it is the preferred solution for time-sensitive coatings, repair, and flooring jobs.
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