Curing Agents

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Curing Agents

QR Polymers provide curing agents for epoxy resins, mainly for applications at room temperature. These are as varied as ambient curing paints for metal or for concrete (industrial anticorrosion paints, marine anticorrosive primers, pipe coatings or tank linings), civil engineering applications such as self-levelling or trowellable floorings, mortars, concrete repair, concrete modification, tank laminating, or adhesives for tiles or concrete.

Our curing agents are of various types: unmodified and modified aliphatic or cycloaliphatic amines, epoxy/(cyclo)aliphatic amine adducts, poly(amino)amides and their adducts, Mannich bases and various special curing agents.

For solventfree and solventborne curing agents, see below. 
For waterborne curing agents click here.
For special curing agents requests, please contact us.
 Hardeners
Solids,
% m/m
Viscosity
@ 25°C,
mPa.s
Equivalent weight,
g/Eq
Gel timea
(100 g@23°C),
minutes
Uses and comments
 
 Accelerators
 Q-RIT 054
100
100 - 300
-
-
2,4,6-tris(dimethylaminomethyl)phenol. Accelerator for epoxy resin/amine systems. Gardner colour: 8 max.
Use with epoxy resin (phr 5 - 15).
 Amines and modified amines
 Q-RIT 120
100
5 - 20
43
130 - 190
For solventfree ambient and heat cure applications.  Low viscosity. High reactivity. Also as accelerator for e.g. amido-amines. Use with liquid epoxy resin (phr 23, resin EEW 190).
 Q-RIT 130
100
5 - 15
60
> 8 h
For solventfree coatings, floorings, mortars, cements, adhesives. Long pot-life. Low viscosity allowing good impregnation, high fillers loadings.  Flexible systems.
Use with liquid epoxy resin (phr 32, resin EEW 190).
 Q-RIT 154
100
20 - 80
90
15 - 20
Modified cycloaliphatic polyamine. Universal use. Low viscosity, good impregnation, high filler loadings. Fast cure. Use with liquid epoxy resin (phr 50, resin EEW 190).
 Q-RIT 156
100
400 - 800
95
30
Modified cycloaliphatic amine for adhesives and mortars. Improved HDT.
Use with liquid epoxy resin (phr 50, resin EEW 190).
 Q-RIT 180
100
900 -1500
35
-
For solventfree adhesives, putties, mortars, impregnation compounds. Very high reactivity. High temperature resistance.
Use with liquid epoxy resin (phr 18, resin EEW 190).
 Amine and cycloaliphatic amine adducts
 Q-RIT 304
100
250 - 500
115
40
For solventfree (self-leveling) floorings, coatings, adhesives. Resistance to light. Good chemical and mechanical resistance. Use with liquid epoxy (phr 60, resin EEW 190).
 Q-RIT 305
100
400 - 700
105
30 -35
For solventfree (self-leveling) floorings, coatings, adhesives. Resistance to light. Good chemical and mechanical resistance. Use with liquid epoxy (phr 55, resin EEW 190).
 Q-RIT 306
100
550 - 850
115
25
Faster than Q-RIT 305.  Resistance to light. Good mechanical, acids and solvents resistance.
Use with liquid epoxy resin (phr 60, resin EEW 190).
 Q-RIT 357
100
150 - 450
93
30 - 35
For solventfree (self-leveling) floorings, coatings. Superior carbamation/waterspot resistance. Good colour retention. Good chemical resistance.
Use with liquid epoxy resin (phr 50, resin EEW 190).
 Q-RIT 358
100
350 - 550
93
20 - 25
For solventfree (self-leveling) floorings, coatings. Superior carbamation/waterspot resistance. Good colour retention. Good chemical resistance.
Use with liquid epoxy resin (phr 50, resin EEW 190).
 Q-RIT 380
    100
1400 - 2400
75
8 - 10
For solventfree floorings. Very high reactivity. Low temperature cure. High chemical resistance. Accelerator for other hardeners. Alternative to Mannich bases.
Use with liquid epoxy resin (phr 40, resin EEW 190).
 Amidoamines
 Q-RIT 431
 
  100
 
400 - 800
75
55
For solventfree concrete coatings, flooring, adhesives, mortars or patching compounds. Can be used on green concrete. Use with liquid epoxy (phr 40, resin EEW 190).
 Polyamides
 Q-RIT 515X70
70
800 - 1500
340
Several hours
For solventborne anticorrosion coatings. 70% solids in xylene. Excellent flexibility and adhesion, good chemical and corrosion resistance, non critical mixing ratio.
Use with solid epoxy resin (phr 70-75, resin EEW 450-500).
 Q-RIT 525
100
10000 – 14000c
130
90
For solventborne and solventfree anticorrosion coatings, adhesives. Good flexibility and adhesion, good chemical and corrosion resistance, non critical mixing ratio.
Use with liquid epoxy resin (phr 70, resin EEW 190).
 Q-RIT 541
 
100
 
1000 – 3000c
95
140
For solventfree anticorrosion coatings, adhesives, concrete repair. Flexibility and adhesion, temperature resistance, substrate impregnation. Low viscosity.
Use with liquid epoxy resin (phr 50, resin EEW 190).
 Polyamide adducts
 Q-RIT 622XB70
70
4000 - 10000
350
Several hours
For solventborne anticorrosion coatings. 70% solids in xylene:butanol. Outstanding flexibility, humidity and corrosion resistance. Cures at up to 70% relative humidity.
Use with solid epoxy resin (phr 70-75, resin EEW 450-500).
 Q-RIT 623XB60
60
800 - 2400
520
Several hours
For solventborne anticorrosion coatings. 60% solids in xylene:butanol. Outstanding flexibility, humidity and corrosion resistance. Cures at up to 60% relative humidity.
Use with solid epoxy resin (phr 110, resin EEW 450-500).
 Q-RIT 635XB80
80
Typical: 3000
190
Several hours
General purpose high-solids curing agent for heavy duty coatings. Low temperature/high humidity cure. Use with high-solids or solid resin (phr 40, resin EEW 450-500).
 Q-RIT 651
100
500 - 1500
115
40 - 45
For solventfree concrete primers, coatings and adhesives. Good substrate impregnation, outstanding adhesion to humid substrates and very good corrosion protection.
Use with liquid epoxy resin (phr 60, resin EEW 190).
 Q-RIT 652
100
800 - 1800
100
40 - 45
For solventfree concrete primers, coatings and adhesives. Low VOC hardener. Very high tolerance to wet substrates, outstanding adhesion to concrete, even not well prepared.
Use with liquid epoxy resin (phr 55, resin EEW 190).
 Q-RIT 655
90
2000 - 6000
190
Up to 2 hours
For high-solids anticorrosion coatings and adhesives. Excellent flexibility, good humidity and corrosion resistance. Adhesion on humid concrete. Underwater cure.
Use with solid epoxy resin (phr 100, resin EEW 190).
a  with liquid resin, EEW 190     b  with solid resin, EEW 450-500    c  measured at 40°C

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