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Solvent Free Curing Agent

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We offer a wide range of Solvent Free Curing Agent.
Item No: PPA - 7115 (PHENALKAMINE EPOXY HARDENER )
Phenalkamine PPA -7115 is a Mannich base reaction product with rapid cure & workable pot life. It shows superior corrosion resistant properties & adhesion on wet surfaces. It has the superior color stability to card phenol based Phenalkamines. Also, resistant to humidity, acids, alkali, water, solvents & various chemicals.
Novel Features:

  • Light colour
  • Colour stable
  • Rapid cure even at low temperatures
  • Good chemical solvent & water resistance
  • Very good compatibility with
    1. Epoxy resin based on bis- phenol A
    2. Epoxy resin based on bis- phenol F
    3. Epoxy resin based on Novolacs
    4. 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
Applications

  • Pipeline & tank coatings
  • Surface tolerant primers for metallic substrates
  • Marine, protective & industrial coatings
  • Adhesives
Typical Properties:

Sr. No. PropertyUnitSpecification
1AppearanceVisualPale yellow viscous liquid
2ColourGardner11 max.
3Amine ValuemgKOH/g230 – 280
4Viscosity @250CcPs250000 – 450000
5Density @250Cgm/cm30.98 – 1.01
6Flash Point (Closed Cup)0C / 0F> 200
7AHEWg/eg.220
8Recommended PHR (EEW–190)----115

Curing Properties:

Liquid epoxy resin (EEW –190 ) 100
PPA – 7115115
@ 250C2.5 – 3.5 hrs
@ 50C18 – 20 hrs
Mixing Ratio:
Liquid Epoxy Resin EEW=190) =46
PPA – 7115 =54
Optimum curing schedule 7 days at 250C
Gel time 100g@250C80 min
Thin film set times, 8 mils (200 microns)
75 microns@25°C =03 – 05 hrs
75 microns@5°C =18 – 20 hrs

Storage & Stability:
Hardener PPA - 7115 should be stored in a cool dry place at 18 - 25°C in the sealed containers to achieve shelf life of minimum one year. The product can react with moisture & carbon dioxide in the air. This may result in increased viscosity & reduced activity.

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