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Epoxy Resin
 
P - EPOX - 2800 X 65  
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High Performance Epoxy Resin: P - EPOX - 2800 x 65 is unique “Epoxy Ether” resin developed by reacting alkyl phenol with bis- phenol epoxy resin & further modified to enhance the performance to protect the substrate in adverse climatic conditions.
Applications :
  • One pack air drying epoxy composition
  • Modification of standard two pack epoxy coatings
  • Two pack epoxy- PU hybrid coating
  • One pack stoving epoxy with blocked isocynates
  • One pack stoving epoxy coating with MF / UF / phenolic resins
Physical Properties :
Sr. No. Property Unit Specification
1 Appearance Visual Light Yellow Viscous Liquid
2 Colour Gardner 12 max
3 Viscosity @ 25°C cPs 10000 - 30000
4 Density @ 25° C gm / cm2 0.97 – 1.00
5 Flash point (Closed cup) °C / °F 29 / 110
6 N.V.M [1 hr @120° C] % 65 ± 2
7 Hydroxyl equivalent weight g / eq. 720
Drier Combination :
1. Co – 0.050 %
2. Ca – 0.150 %
3. Zr – 0.05 %
4. Mn – 0.035 %
1 Viscosity in 40 % xylene 40 – 60 sec
2 Viscosity with drier in 40 % xylene 45 – 65 sec
3 Viscosity overnight with drier in 40 % xylene 50 – 70 sec
Drying Time (at 30° C)
i) Set : 5 – 10 mins
ii) T.F. : 1.5 – 2 hrs
Advantages :
I) One Pack Systems :
  a) User friendly protective coatings for mechanically cleaned surfaces could be developed
  b) Fast drying one pack epoxy systems against chlorinated rubber / vinyflex could be developed which gives excellent
      corrosion, acid & alkali resistance
II) Modification of Standard Epoxy Two Pack Coating (Modification up to 30% & Advantages against std. Two Pack Epoxy Systems) :
  a. Cost reduction
  b. Gives good acid, alkali & corrosion resistance
  c.Improves surface wetting properties for maintenance primers/coatings
  d. Higher workable pot life
  e. Increases recoating interval incase of primers & mid coats
  f. Better pigment dispersion & wetting during production
III) Two Pack Epoxy - PU Hybrid Coating
  a. Low temperature curing is better than epoxy / phenalkamine systems
  b. Very good flexibility
  c. Very good solvent & chemical resistance
Starting Formulation for PEPOX-2800 X 65
A) Protective Coatings ( Single Pack )
Sr. No. Raw Material Qty. (kg)
1 Pigment & Extenders 40.00
2 Anticorossive Pigment 08.00
3 Anti Tera (U) 00.40
4 P Epox -2800 x 65 32.00
5 BYK - 410 00.60
6 Thinner 17.60
7 Drier 01.40
Total   100.00
Paint Properties :
Sr. No. Property Specification
1 V.O.C. 434 g / lit
2 P.V.C. in Dry Film 30 %
3 Pigment / Resin Ratio by Volume 1 : 1.75
4 Solid by Weight 70.00 %
5 Mix Viscosity 100 ± 20 sec at 30° C
B) Two Pack Epoxy Primer with Part Replacement by PEPOX-2800 X 65
Raw Material Qty. (kg)
Base
P EPOX 2800 X 65 11.07
Araldite 6071 X 75% 16.78
Tio 2 Rutile 6.00
Silica Micron 12.30
Statite Micron 12.30
Zinc Phosphate 6.00
Baraties 8.00
Anti Terra ‘U’ 0.30
Ben Tone P 27 Jelly 6.00
Cellosolve 2.55
Butanol 1.40
Hardener
PPA- 7125 4.20
Xylene 13.10
Total 100.00
P.B.BY Volume 1:1.60
N.V.M. % 69.20 %
Viscosity Thixo Tropic
SP. Gravity 1.38
Drying
Surface Dry
Hard Dry
30 Min
24 Hrs
S.V.R.% 50
Mixing Ratio Base -
C.A.-
3 Part by Volume
1 Part by Volume
C) Two Pack Epoxy - PU Hybrid Top Coat :
Name of Raw Material Quantity (Kg)
Base
Tio 2 Rutile 4.00
Carbon Black HAF 0.05
Zinc Phosphate 6.00
Baraties 500 Mesh 20.00
Talk 500 Mesh 20.00
Disper BYK -110 0.40
PEPOX - 2800 X 65 22.40
O-XYLENE 15.25
Buytle Acetate 3.50
BYK 410 0.40
   
Hardener
Desmodure L- 75 7.00
Butyl Acetate 1.00
Total 100.00
P.B.BY Volume 1 : 1.77
N.V.M. % 69.86 %
Viscosity Thixo Tropic
SP. Gravity 1.48
Drying
Surface Dry
Hard Dry
30 Min
24 Hrs
S.V.R.% 47
Mixing Ratio Base -
C.A.-
9 Part by Volume
1 Part by Volume
Curing Properties :
Sr. No. Property Specification
1 Surface Dry 10 - 20 min at 30° C
2 Tack free 2 hrs at 30° C
 
Handling & Storage :
Handling: Avoid use of electric band heater or application of direct flame to container. It can cause explosion & fire.

Storage: Good general ventilation should be sufficient for most conditions. Local exhaust ventilation may be necessary for some operations.
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