Phenalkamine PPA - 7040 is Mannich base, a reaction product of distilled cashew nutshell liquid & polyamine.
Chemical Structure :
Features :
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 novolacs
iv) Most of the organic solvents & their combinations
Non-critical mixing ratios
Excellent curing under humid & damp conditions
Good adhesion to mechanically cleaned surfaces
Superior corrosion resistance
Very good flexibility
Workable pot life
Low viscosity
Applications :
Solvent free, High solid coatings
Pipeline & Tank coatings
Adhesives
Surface tolerant primers for metallic substrate
Marine & Industrial coatings
Typical Properties :
Sr. No.
Property
Unit
Specification
1
Appearance
Visual
Reddish Brown Clear Liquid
2
Colour
Gardner max
17 max
3
N.V.M.
%
Solvent free
4
Amine Value
mg KOH / g
490 - 550
5
Viscosity @ 25° C
cPs
1000 - 4000
6
Density @ 25° C
g / cm3
0.98 - 1.01
7
Flash point (Closed cup)
°C / °F
107 / 225
8
AHEW
g/eq.
81
9
Recommended PHR (EEW –190)
--
30 - 40
Curing Properties :
Formulation :
Liquid epoxy resin (EEW -190)
100
100
Paladin PPA - 7040
30
40
Optimum curing schedule 7 days at 25° C
Gel time ( 100g @ 25° C ) Mixing
50 min
40 min
B.K Drying Recorder, set time, (200 microns) 8 mil
(Liquid Epoxy resin EEW - 190)
@ 25° C
6 - 8 hrs
@ 5° C
14 - 16 hrs
@ 0° C
30 - 35 hrs heavy blush at 42° F & 100 RH
Storage & Stability :
Hardener PPA - 7040 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 & reduce 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
