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JPOXY JH 8379

JPOXY JH 8378
JPOXY JX 7002

₹6,212.00 – ₹14,909.00 Inclusive of all taxes

Low viscosity, high reactivity, moisture resistant phenalkamine curing agent

SKU: JH8379
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Description

JPOXY JH 8379 is a solvent-free hardener. It has very low viscosity and is easy to apply. It uses Phenalkamine, which gives strong grip and fast curing. Even in wet or damp areas, it works well. So, it is great for use in marine or humid places. It also spreads smoothly and lasts long. Pick JPOXY JH 8379 when you need strong and moisture-proof protection.

  • Amine value[mg KOH/g]: 270-320
  • Viscosity [mPa s] @ 25˚C : 80-200
  • Color [Gardner] : ≤14
  • Density @ 25˚C [g/cc] : 0.93-0.97
  • Anti corrosive coating
  • Mortar
  • Solvent free phenalkamine hardener
  • Fast cure
  • Moisture resistant
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Q1. What type of hardener is JH 8379?

A1. JH 8379 is a phenalkamine-based epoxy hardener that is solvent-free, low in viscosity, and highly moisture resistant. It is designed for fast curing even in damp or humid environments.

Q2. What are the key advantages of JH 8379?

A2. 

  • Very low viscosity (80–200 mPa·s) – flows easily into pores and crevices
  • Fast reactivity – quick setting, even in cooler or wet conditions
  • Moisture resistance – cures well on damp concrete or metal
  • Strong bonding – reliable adhesion to various substrates
  • Solvent-free – safer and more eco-friendly
Q3. What are typical applications for JH 8379?

A3. You can use this product in:

  • Anti-corrosive primers and topcoats
  • Repair mortars for concrete or metal
  • Industrial floor coatings in damp or high-humidity zones
  • Marine and infrastructure protective systems
Q4. Can it cure on moist or wet surfaces?

A4. Yes. This is one of the core strengths of phenalkamine systems. JH 8379 maintains adhesion and cures even on damp, unprepared, or cold surfaces.

Q5. How does it compare to other phenalkamine hardeners like JH 8361, JH 8362, or JH 8378?

A5. 

  • JH 8379: Lowest viscosity & fastest curing
  • JH 8362: Low viscosity, high solids
  • JH 8361: Medium viscosity, high barrier performance
  • JH 8378: Moisture tolerant, benzyl alcohol free Each is tuned for specific needs—8379 is ideal when speed and flowability are most critical.
Q6. Is it suitable for field work in cold or rainy conditions?

A6. Absolutely. JH 8379 performs reliably in low temperature or high humidity, which makes it ideal for on-site repairs, marine docks, or bridges.

Q7. What resin should be paired with JH 8379?

A7. Best results are achieved with liquid Bisphenol-A epoxy resins such as JPOXY JR 3013 or JR 3000, depending on desired flexibility, reactivity, or chemical resistance.

Q8. What kind of finish and appearance does it offer?

A8. JH 8379 generally delivers a semi-gloss or matte finish, depending on formulation. Due to its low yellowing tendency, it’s suitable for pigmented or industrial finishes.

Q9. How fast does it cure?

A9. 

  • Touch dry: 3–5 hours at 25°C
  • Full cure: ~5 days
  • Recoat window: 6–24 hours, depending on ambient temperature and humidity
Q10. Is it compliant with environmental safety norms?

A10.  Yes. It is free from solvents, making it low-VOC and safer for indoor and outdoor use. Always use PPE and follow MSDS guidelines during application.