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Phenalkamine Curing Agent
 
PPA - 7088 PHENALKAMIDE (PHENALKAMINE MODIFIED WITH POLYAMIDE) EPOXY HARDENER
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Phenalkamide PPA - 7088 is an epoxy adduct of Mannich base reaction product. It shows rapid cure with workable pot life, superior corrosion resistant properties & adhesion to damp surfaces. It has longer pot life to card phenol based Phenalkamines. It offers superior resistance to humidity, acids, alkali, water, solvents & various chemicals.
 
Chemical Structure :
R  = H, ALKYL, ARYL
R’ = MONOMERIC, DIMERIC OR POLYMER OF FATTY ACID 
Features :
  • Low viscosity
  • Excellent rapid cure even at low temperature
  • Good chemical, solvent & water resistance
  • Very good compatibility with
    I) Epoxy resin based on bisphenol A
    ii) Epoxy resin based on bisphenol 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
  • Very good flexibility
  • Workable pot lives lower temperature
Applications :
  • Medium to high solid primers / mid coats
  • Flooring & Construction
  • Marine & Industrial maintenance coatings
  • Tank lining
  • Adhesives
  • Surface tolerant primers for metallic substrates
 
Typical Properties :
Sr. No.
Property Unit Specification
1 Appearance Visual Dark brown viscous liquid
2 Colour Gardner 16 max
3 N.V.M. (1 hr @105° C) % 65 ±2
4 Amine Value MgKOH / g 130 - 180
5 Viscosity @25° C cPs 500 - 1500
6 Density @25° C kg / litre 0.96 - 0.98
7 Flash point (Closed cup) °C / °F 26.5 / 80
8 AHEW g / eq. 462
9 Recommended PHR (Liquid epoxy resin –190) ---- 243
 
Curing Properties :
Formulation :  
Liquid epoxy resin ( EEW–190 ) 30
Paladin PPA - 7088 70
Optimum curing schedule 7 days at 25° C
Gel time (100g @ 25° C) mixing 120 - 180 min
B.K Drying Recorder, set time, (200 microns) 8 mil
(Liquid Epoxy resin EEW - 190)
@ 25° C 3 - 6 hrs
@ 5° C 18 - 20 hrs
@ 0° C -
Storage & Stability :
Hardener PPA-7088 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 vapors. 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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