Curing Agents

Curing agents are a vital part of the Epotec® Epoxy Resin and Curing Agent System. The selection of right curing agent is equally important as it influences the viscosity, reactivity and working time in general and mechanical, chemical and optical properties in specific.

Phenalkamines

Click on individual product to download the Technical Data Sheet. 

Grade Color1 Viscosity2  Sp.Gr3  %SOLIDS  A.H.E.W4  phr5 Gel time6  TFST7 Features
TH 7940 17 2,000 - 3,000 0.97 - 1.0 100 80 40 30 - 40 2 - 5 High solids coaltings,potable water pipe lines, concrete coatings.
TH 7940NB 17 1,000 - 3,000 0.95 - 0.99 95 +/- 2 84 178 70 - 908 2 - 48 Solvent containing variant of Epotec® Curing Agent TH 7940
TH 7941 17 20,000 - 50,000 0.98 - 1.01 100 140 70 65 - 90 6 - 9 Medium to high solids marine and industrial maintenance coatings, potable water tank coatings,ballast tank coatings.
TH 7941S10 17 200 - 700 0.93 - 0.98 75 +/- 2  150 80 100 - 1509 6 - 8 Solvent based industrial coatings.
TH 7942 17 10,000 - 20,000 0.96 - 1.02 75 +/- 2  155 258 60 - 809 1 - 38 Fast Curing coatings with good gloss.
TH 7966 17 1,000 - 4,000 0.98 - 1.01 100 95 50 18 - 30 2 - 4 Fast-stting high solids coatings.

1Gardner Color Scale (Maximum), 2Brookfield Viscosity @25°C (cP), 3Specific Gravity @25°C (cP) ,4Equivalent Weight per Active-H, 5Parts per hundred of Resin with EpotecYD 128 (EEW = 186 gleq), 6Gel Time in minues, 100 grams 25°C with EPOTEC YD (EEW = 186 g/eq), 7 Thin Film Set Time in hours @ 25°C (cP) , 75  thick film EPOTEC YD 128 (EEW = 186 g/eq), 8 with standard Bisphenol A epoxy resin EPOTEC YD 011 X 75 (EEW = 630 g/eq on solution), 9 By GElnorm @35°C 

Modified Aliphatic Amine Curing Agents

Modified Aliphatic Amines are room temperature reacting curing agents derived from aliphatic amines. The basic aliphatic amines are modified to reduce their vapor-pressure and thereby reduce their corrosiveness. The modification is also done to optimize the hardness, reactivity, handling time of system and also to improve the carbonation resistance.

Click on individual product to download the Technical Data Sheet. 

Grade Color1  Viscosity2  Amine value3  Sp. Gr4  A.H.E.W.5  phr6 Gel time7  TFST8 Features
TH7201 3 20 - 60 475 - 520 1.06 60 33 18 - 30 2 - 3 High reactivity combined with excellent chemical resistance.
TH7202 3 80 - 130 1,050 - 1,080 1.04 31 15 10 - 16 2 - 3 Good Chemical and heat resistance.
TH7203 3 250 - 400 360 - 380 1.1 88 46 25 - 30 2 - 3 Excellent chemical resistance, with low temperature curing.
TH7207 3 150 - 350 615 - 675 0.97 95 50 5 - 12 1 - 2 Faster cure in presence of high humidity.
TH7210 4 3,000 - 4,500 770 - 820 1.07 38 20 12 - 16 3 - 4 Provide excellent resistance to solvents and alcohols.
TH7211 2 35 - 80 300 - 330 0.95 76 40 80 - 120 9 - 12 Good color.
TH7212 2 15 - 30 690 - 720 1.05 48 25 30 - 50 2 - 4 Low temperature curing, excellent mechanical strength with good adhesion to concrete.
TH7222N 8 450 - 700 430 - 490  1.05  112 60 20 - 35 3 - 5 Curing at room temperature giving high glossy finish.
TH7227 2 18537 1,430 - 1,475  0.99  24 13 5 - 15 4 - 6 Good adhesion, good penetration in smaller cracks.
TH7903 10 1,200 – 2,100 760 – 800 1.08 50 26 10 -18 1 - 3 High reactivity at low temperature and curable in highly humid conditions.
TH7905 5 400 – 600 350 – 390 1.02 75 40 15 - 20 1 - 2 High reactivity and low temperature.curable in highly humid conditions with excellent chemical resistance. Good adhesion to concrete and steel..
TH 8276 50 10 - 20 1200 - 1400 0.9 - 1.0 43 23 5 - 20  
High-boiling tri-amine containing primary, secondary and tertiary amine groups.Clear, mobile liquid completely soluble in water. It is used as hardener to cure epoxy resins
either alone or in formulation with other polyamine curatives.

 1Gardner Color Scale (Maximum), 2Brookfield Viscosity @25°C (cP), 3 mg of KOH/g, 4Specific Gravity @25°C (cP) 5Equivalent Weight per Active-H, 6Parts per hundred of Resin , 7Gel Time in minues, 150 grams 25°C , 8 Thin Film Set Time in hours @ 25°C (cP) , 75  thick film.

Modified Cycloaliphatic Amine Curing Agents

Modified Cycloaliphatic Amines are room temperature curing agents. Excellent color and lower corrosiveness makes them the preferred choice for self-leveling floorings, primers, top coats, mortars and water-wipeable tile grouts. These Epotec® Curing Agents posses low yellowing tendency and offer good early water spotting resistance.

Click on individual product to download the Technical Data Sheet. 

Grade Color1  Viscosity2  Amine value3  Sp. Gr4  A.H.E.W.5 phr6 Gel time7 TFST8 Features
TH7301 1 270 - 380 260 - 285 1.03 115 60 28 - 45 6 - 8  Excellent color stability providing high gloss surface with good chemicals resistance. 
TH7302 3 280 - 420 300 - 320 1.03 95 50 25 - 35 6 - 7 High mechanical strength and resistance to amine blush and water spotting.
TH7310 2,000 - 3,500 300 - 325 1.01 110 58  20 - 30 5 - 7 Light color and develop fast hardness and strength.
TH7901 4 100 – 200 280 – 325 1.02 102 55 23 – 27 5 – 8 High reactivity at low temperature , curable in highly humid conditions with excellent chemical resistance.
TH7902 3 120 – 320 345 – 375 1 102 55 23 – 27 3 – 5 Phenol-free version of Epotec® Curing Agent TH 7901. 
TH7320 1 250-500 235 - 270  1.04  95 50 30 - 45 5 - 8 Provides clear, glossy, hard surface.

  1 Gardner Colour Scale (Max), 2 Brookfield Viscosity @ 25°C (cPs), 3 mg of KOH, 4 Specific gravity @ 25°C, 5 Equivalent Weight per Active-H, 6Parts per hundred of resin, 7 Gel Time in minutes, 150 grams @ 25°C, 8 Thin Film Set Time in hours @ 25°C, 75 μ thick film.

Phenolic Curing Agents

Phenolic Epotec® Curing Agents are used with Poly-Functional Epotec® Epoxy Resins. They give excellent chemical resistance and adhesion to the surface and retain properties to give good service life at elevated temperatures when formulated properly. They are also widely used in functional coatings like FBE coatings for re-bars and pipe line coatings.

Click on individual product to download the Technical Data Sheet. 

Grade Hydroxyl EW1  Melt Viscosity2  Color3  S.P.4  Features
TH981 250 - 280 290 - 750 1 75 - 90 Phenolic curing agent to adjust the reactivity when using Epotec® Curing Agent TH982 / TH983.
TH982 250 - 290 290 - 470 1 75 - 90 Accelerated phenolic curing agent for chemical resistant coatings for re-bar and pipes.
TH983 250 - 290 290 - 470 Milky Flakes 75 - 90 Accelerated and flow modified phenolic curing agent for chemical resistant coatings for re-bar and pipes.
TH984 370 - 400 1,000 - 2,000 1 90 - 102 Phenolic curing agent with better flexibility for chemical resistance coatings for re-bar and pipes.

1 Hydroxyl Equivalent Weight (grams / equivalent), 2 ICI Melt Viscosity @ 150°C (cPs), 3 Gardner Colour Scale (max),   4 Softening Point °C (Mettler Ball and Cup)

Waterborne Curing Agents

Epotec ® waterborne curing agents are based on modified polyamines. In addition to cross-linking liquid epoxy resins in the final film they also act as emulsifiers allowing the formulation of zero VOC systems and avoiding the need for additional emulsifiers. They find wide applications in self-leveling, trowelable flooring, coatings, water wipeable tile grouts etc.

Click on individual product to download the Technical Data Sheet. 

Grade % NV1 Color Viscosity2  Phr3 Pot life4 TFST5 Features
THW4502 55 Translucent emulsion 20,000 - 55,000 130 - 150 180 - 200 6 - 8 Long pot life, high gloss
THW4503 70 Amber liquid 2,500 - 6,000 80 50 - 75 6 - 7 High strength, low colour
THW4504 60 Pale yellow liquid 1,500 - 2,500 110 55 - 70 3 - 5 Long pot life, low colour and high strength

 1 % Non-volatile (+/- 2%) , 2 Brookfield Viscosity @ 25°C (cPs), 3 Parts per hundred of resin, 4 Pot life in Minutes, @ 25°C ,5 Thin Film Set Time in hours @ 25°C.