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PPA - 7108 PHENALKAMINE EPOXY HARDENER
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Phenalkamine PPA - 7108 is Mannich base, a reaction product of distilled cashew nutshell liquid & polyamine. It is epoxy adduct of Phenalkamine in solution form.
 
Chemical Structure :
Features :
  • Low viscosity
  • Excellent rapid cure even at low temperatures
  • 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 & wet conditions
  • Good adhesion to mechanically cleaned surfaces
  • Very good adhesion over wet surfaces
  • Superior corrosion resistance
  • Very good flexibility
  • Workable pot life at lower temperatures
Applications :
  • Coatings for sweating lines / wet surfaces
  • 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 Orange Brown liquid
2 Colour Gardner 14 max
3 Amine Value mgKOH/g 320 – 370
4 N.V.M. (1 hr @105° C) % 75 ± 2
5 Viscosity @25° C cPs 500-3000
6 Density @25° C gm/cm3 0.95 0.97
7 Flash Point (Closed cup) °C / °F 35 / 95
8 AHEW g/eg. 125
9 Recommended PHR (EEW–190) ---- 66
 
Curing Properties :
Formulation :  
Liquid epoxy resin (EEW –190) 100
Paladin PPA - 7108 66
Optimum curing schedule 7 days at 25° C
Gel time 100g@25° C mixing 50 - 60 min
B.K Drying Recorder, set time, ( 200 microns ) 8 mil
( Liquid Epoxy resin EEW - 190 )
@ 25° C 3 - 5 hrs
@ 5° C 15 - 18 hrs
@ 0° C --
Storage & Stability :
Hardener PPA - 7108 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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