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JPOXY JH 8378

JPOXY JH 8362
JPOXY JH 8379

₹5,760.00 – ₹13,824.00 Inclusive of all taxes

Solvent free, moisture resistant phenalkamine curing agent

SKU: JH8378
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Description

JPOXY JH 8378 is a solvent-free and benzyl alcohol-free hardener. It uses Phenalkamine, which ensures strong bonds. Additionally, its low viscosity helps it flow easily and mix well. As a result, it works great in coatings, adhesives, and laminates. Furthermore, it cures quickly and holds up in tough jobs. Therefore, choose this solution for easy use and strong results.

  • EEW [g/eq] : 320-360
  • Viscosity [mPa s] @ 25˚C : 500-1,500
  • Color [Gardner] : ≤17
  • Density @ 25˚C [g/cc] : 0.95-1.0
  • High solid coatings
  • Primers
  • Pipe application under damp and cold conditions
  • Solvent free phenalkamine hardener
  • Excellent adhesion to unprepared substrates
  • Moisture resistant
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Q1. What kind of hardener is JH 8378?

A1.  JH 8378 is a phenalkamine-based epoxy curing agent that is solvent-free and benzyl alcohol-free. It is formulated to deliver high performance under moist, cold, and poorly prepared conditions.

Q2. What makes JH 8378 unique compared to regular amine hardeners?

A2. 

  • No benzyl alcohol → Less odor, improved safety
  • Excellent surface tolerance → Bonds well even on damp or rusted surfaces
  • Fast cure at low temperatures
  • High mechanical and chemical resistance
Q3. Where can JH 8378 be used?

A3. It is suitable for:

  • High-solids primers and coatings
  • Adhesives for construction and repair
  • Pipeline coatings and repairs in cold or damp environments
  • Protective coatings on steel, concrete, or composite substrates
Q4. Can this be applied on wet or moist substrates?

A4. Yes, it is specially formulated to cure effectively even in high humidity, damp, or wet environments, making it ideal for marine, infrastructure, and utility coatings.

Q5. Is JH 8378 a good choice for cold weather applications?

A5. Absolutely. It cures at temperatures as low as 5°C, maintaining pot life and recoat windows suitable for field applications in winter or moist conditions.

Q6. Is it compatible with all epoxy resins?

A6. Best results are obtained when paired with standard Bisphenol-A based liquid epoxy resins such as JR 3013 or JR 3000, depending on end-use performance needs.

Q7. Can this be used for potable water tanks or hygiene-sensitive applications?

A7. While it is low-VOC and solvent-free, for potable water certification, final system testing and compliance to standards (like BIS 9833 or NSF 61) must be verified.

Q8. What finish and appearance does it give?

A8. When used correctly, it gives a semi-gloss to matte finish, depending on filler and formulation. Its low yellowing tendency supports clear or tinted topcoats.

Q9. How long does it take to cure?

A9.

  • Touch dry: 4–6 hours at 25°C
  • Full cure: 5–7 days (faster in warm conditions)
  • Overcoat window: 8–24 hours depending on environment and film thickness
Q10. Is it safe to handle?

A10. JH 8378 is free from solvents and benzyl alcohol, reducing skin and inhalation risks. However, standard PPE (gloves, goggles, mask) should still be used during application.