PPA - 7140 PHENALKAMIDE (PHENALKAMINE MODIFIED WITH POLYAMIDE) EPOXY HARDENER

Phenalkamide PPA - 7140 is a Mannich base reaction product. It shows rapid cure with workable pot life, superior corrosion resistant properties & adhesion to damp surfaces. It has light colour, superior colour stability & 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 :

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, damp surfaces
Superior corrosion resistance
Very good flexibility
Workable pot life
Light colour
Colour stable on heat & U.V. exposure

Applications :

Pipeline & tank coatings
Adhesives
Surface tolerant primers for metallic substrates
Marine, protective & industrial coatings

Typical Properties :

Sr. No.	Property	Unit	Specification
1	Appearance	Visual	Pale Yellow Viscous Liquid
2	Colour	Gardner max	10 max
3	N.V.M.	%	Solvent free
4	Amine Value	mg KOH / g	350 - 400
5	Viscosity @ 25° C	cPs	10000 - 35000
6	Density @ 25° C	g / cm³	0.99 ± 0.01
7	Flash point (Closed cup)	°C / °F	> 1800° C
8	AHEW	g/eq.	97
9	Recommended PHR (EEW –190)	--	51

Curing Properties :

Formulation :
Liquid epoxy resin (EEW -190)	100
Paladin PPA - 7140	51
Optimum curing schedule 7 days at 25° C in Minutes
Gel time ( 100g @ 25° C ) mixing	100

B.K Drying Recorder, set time, (200 microns) 8 mil
(Liquid Epoxy resin EEW - 190)

@ 25° C	03 – 05 hrs
@ 5° C	10 – 16 hrs
@ 0° C	--

Storage & Stability :

Hardener PPA – 7140 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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