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Amine Adduct
 
PPA – 7351 X 70 PHENALKAMINE EPOXY HARDENER
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Phenalkamine PPA- 7351 X 70 is Mannich base. A reaction product of distilled cashew nutshell liquid & polyamine. It is an Epoxy Adduct solution of phenalkamine, based on suitable polyamine.
 
Chemical Structure :
Features :
  • Low viscosity
  • Excellent rapid cure even at low temperature
  • Good chemical, solvent & water resistance
  • Very good compatibility with
    I) Epoxy resin based on bis- phenol A
    ii) Epoxy resin based on bis- phenol F
    iii) Epoxy resin based on phenolic novolacs
  • Non-critical mixing ratio
  • Excellent curing under humid as well as damp conditions
  • Good adhesion to mechanically cleaned surfaces
  • Superior corrosion resistance
  • Offers very good flexibility, to high DFT coatings, even at wide temperature changes
  • Workable pot life at lower temperatures
Applications :
  • Anticorrosive primer for galvanized surfaces with high DFT
  • Medium to high solid coatings
  • Flooring & construction
  • Marine & industrial maintenance coatings
  • Tank linings
  • Adhesives
  • Surface tolerant primers for metallic substrates
 
Typical Properties :
Sr. No.
Property Unit Specification
1 Appearance Visual Reddish brown viscous liquid  
2 Colour Gardner 17 Max
3 Amine Value mg KOH / g 180 - 210
4 N.V.M. (1 hr @105° C) % 67 - 71
5 Viscosity  @25° C cPs 1500 - 3000
6 Density @25° C gm / cm3 0.99 - 1.01
7 Flash point (Closed Cup) °C / °F 33 / 91.40
8 AHEW g / eq. 291(70%) / 204(100%)
9 Recommended PHR  (EEW -190) ---- 153
 
Curing Properties :
Formulation :  
Liquid Epoxy Resin (EEW-190) 100
PPA 7351 X 70 100
Optimum Curing Schedule 7 days at 25 C
Gel Time (100g@25 C) Mixing 30 - 40 min
B.K Drying Recorder, set time, ( 200 microns ) 8 mil
(Liquid Epoxy Resin EEW-190)
@ 25° C 1 - 2 hrs
@ 5° C 6 - 8 hrs
@ 0° C 10 - 12
Storage & Stability :
Hardener PPA - 7351 X 70 should be stored in a cool dry place at 18 - 25°c in the sealed containers to achieve shelf life of minimum one year. Product can react with moisture & carbon dioxide in the air. This may result in increased viscosity & reduced activity.
Handling & Precaution :
May be harmful if ingested or absorbed through the skin & can cause sensitization. Will cause severe inflammation in contact with eye & skin. Wash thoroughly after handling. Adequate ventilation is essential during application. Containers should be tightly closed when not in use or during transportation. Do not inhale mist or vapours. It is recommended to use gloves, safety glasses & protective clothing for safe handling.
First AID :
In case of
Inhalation : Remove to fresh air & give oxygen if breathing is difficult
Ingestion : Give plenty of water. Do not induce vomiting. Contact a physician
Contact with Eyes : Flush eyes with plenty of clean water for at least 15 minutes
Contact with skin : Immediately wash with mild soap & water
 
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