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Report
Amicure® IC-322: Polycarbamide
Curing Agent for Low Gloss Floor
Coating Solutions
Shafiq Fazel
Air Products
© Copyright Air Products and Chemicals, Inc.
Industrial and Commercial Flooring –
Diverse uses and applications…
2
© Copyright Air Products and Chemicals, Inc.
Total Floor Coating System
Single / Double
Broadcast System
Self- leveling System
B
A
D
D
A
C
• Primer (A)–Often used with broadcast systems, and are highly
recommended for any application on concrete (including damp/green).
Can be pigmented if no base coat is used.
• Base coat or Mid coat – Self-level slurry (B) (50-60 mil dry); unfilled
clear for single/double broadcast (C) (10-20 mil dry) or coating (5-10
mil dry).
• Top coat or Seal coat (D)– Applied as a clear coat on top of base or mid
coat (10-20 mil dry).
3
Attributes of a Total Floor Coating
System
• Great Handling Properties • Excellent Performance
–Long working time
Properties
–Rapid property development
• “Green”
–Environmentally friendly
–Zero to low VOC
–Low odor
4
–Good adhesion to concrete (dry
and damp)
–Good recoatability
–Fast return to service
–UV stability
–Chemical / stain resistance
–Impact resistance
–Abrasion resistance
Advanced Thermoset Technologies for
flooring
• Moieties of polymer crosslinked systems
Polyol
Amine curing
agent
Isocyanate
Epoxy resin
Isocyanate
Polycarbamide
O
R
N
H
OH
O
R
Polyurethane
5
R
H
N
Amine-cured
Epoxy
O
R
R
N
H
N
H
R
(Aliphatic)
Polyurea
© Copyright Air Products and Chemicals, Inc.
Advanced Thermoset Technologies
- Polycarbamide Technology
• Key attributes
• Very rapid cure speed
• Low temperature cure
• Excellent UV resistance
• Thick films in 1 pass (up to 20 mils)
• Good stain & chemical resistance
• High abrasion resistance
• High impact resistance
• High gloss
• Current Limitations
•Ability to control gloss levels for topcoat applications
6
High Gloss is nice, but…
•Formulators want flexibility in providing
topcoats with wide gloss range
- Low gloss coatings hide flaws better
- Surface wear are not easily seen with satin finish
- Customer preference
•Current Thermoset Technologies used for high
and low gloss topcoats
- Solventborne Polyurethanes
- Waterborne Polyurethane
7
New Novel Polycarbamide Technology
• Unique new amine curing agent designed for use with
aliphatic isocyanate resins in high performance flooring
applications
• The new Polycarbamide technology, Amicure® IC-322
retains the excellent UV stability and durability of our
current commercial offerings, and plus builds in an
exciting new Feature:
- Formulating flexibility gives the formulator important new
latitude to:
• Customize finish between High Gloss and Satin
• Low gloss finish is obtained by adding a specialized commercial
matting agent in the formulation
- Brings in some VOC, but still <100 g/L
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Amicure IC-322 Satin and Gloss pigmented topcoats
Satin with matting agent, High Gloss without matting agent
60°
Gloss
Satin
High Gloss
Satin
20o
High Gloss
60o
High
20
Gloss Satin
°
Satin
60
°
9
85
°
Satin
High Gloss
85o
High
Gloss Satin
High
Gloss
> 80
Semi
Gloss
45-80
Satin
20-45
Matte
<20
85°Gloss
<15
High
Gloss
Satin Coatings Comparison (~2 mil DFT)
Topcoat Properties
Amicure IC-322
Satin
60°Gloss (25°C / 15°C )
39 / 45
32 / NA
24 / NA
Recommended film
thickness (mils)
Up to 20
<5
<5
Mix Viscosity (cP, 25°C)
1500
200
200
VOC (g/L)
< 100 (Low odor)
(EPA method 24)
Commercial 2K
Waterborne PU
< 50
(Low odor)
Commercial 2K
Solventborne PU
100
(High odor)
10-15
1.3 / 7
10-15
1.0 / 8
20-30
3.5 / 8
Persoz Hardness (1/sec)
(1 day)
140
160
67
Direct/Reverse Impact
(in.lbs)
> 160/160
> 120/100
> 160/160
Taber abrasion (mg loss)
1000cycles CS17 wheel
44
41
48
QUV-A (500hrs)- ∆E
<3
<3
<3
Working time (min)
TFST phase 2/3 (hr)
10
Chemical Resistance (ASTM D1308)
(1 week after Application)
24 hr
exposure
Amicure IC-322
Satin
Commercial 2K
Waterborne PU
Commercial 2K
Solventborne PU
Skydrol
3
5
5
5
5
5
5
5
2
5
5
5
5
5
4
4
1
5
4
5
5
5
5
5
Total (out of 40)
38
35
35
10% Acetic Acid
20% sulfuric acid
Ethanol
50% NaOH
Unleaded gas
Motor oil
Brake Fluid
11
Ranking after exposure
5-best
1-worst
Early Chemical Resistance (ASTM D1308)
(1 day/week after Application)
24 hr
exposure
10% Acetic Acid
20% sulfuric acid
Ethanol
50% NaOH
Unleaded gas
Motor oil
Brake Fluid
Skydrol
Total (out of 40)
12
Amicure IC-322
Satin
Commercial 2K
Waterborne PU
Commercial 2K
Solventborne PU
3/3
5/5
5/5
5/5
5/5
5/5
5/5
5/5
1/2
0/5
5/5
5/5
5/5
5/5
4/4
4/4
1/1
2/5
1/4
4/5
5/5
4/5
4/5
4/5
36 / 38
29 / 35
26 / 35
Ranking after exposure
5-best
1-worst
Early Water Resistance
(ASTM D1308)
Water exposed after various cure times
Water exposure time – 24 hrs
IC-322
13
2K WB PU
Cure
times
IC-322
Satin
2K WB
PU
2K SB
PU
4 hr
5
2
3
8 hr
5
3
3
24 hr
5
4
5
48 hr
5
5
5
2K SB PU
Ranking after exposure
5-best
1-worst
Performance Comparison
Amicure IC-322
Satin
Commercial 2K
Waterborne PU
Commercial 2K
Solventborne PU
Green/odor
+
+
-
UV Resistance
+
+
+
Abrasion Resistance
+
+
+
Surface wear
+
+
+
Coating toughness
+
+
+
Pot life/ gel time
-
+
+
Long open time
-
-
+
Early Chemical/water
resistance
+
-
-
Low Temp Cure
+
-
-
Thick build (>10 mils)
+
-
-
Cost in use
$$
$$
$$
14
Advanced Thermoset Technologies
Conclusion
• A new amine curing agent, Amicure IC-322 has been
developed for use in Polycarbamide coatings.
- Formulating flexibility gives the formulator important new latitude
to customize gloss between High Gloss and Satin finish.
• The low gloss Polycarbamide formulation provides improved
benefits over traditional low gloss thermoset technologies:
- Rapid property development
- Early chemical and water resistance
- Ability to apply thick films in one pass
- Can apply satin finish at lower temperatures
15
Thank you!
Add a Game Changer to your
formulation.
Let Air Products show you how.
Booth #1115
www.airproducts.com/ACS
16
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