amicure® ic-322: polycarbamide curing agent for low gloss floor coating solutions shafiq fazel air...
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Amicure® IC-322: Polycarbamide Curing Agent for Low Gloss Floor Coating Solutions
Shafiq FazelAir Products
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Industrial and Commercial Flooring – Diverse uses and applications…
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Total Floor Coating System
• 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).
A
DB C
A
D
Self- leveling System Single / DoubleBroadcast System
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Attributes of a Total Floor Coating System
•Great Handling Properties– Long working time– Rapid property development
•“Green”– Environmentally friendly – Zero to low VOC– Low odor
•Excellent Performance Properties– Good adhesion to concrete (dry
and damp)– Good recoatability– Fast return to service– UV stability– Chemical / stain resistance– Impact resistance– Abrasion resistance
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Advanced Thermoset Technologies for flooring • Moieties of polymer crosslinked systems
R
OH
NH
RNH
O
O
R R
Polyurethane Amine-cured Epoxy
Polyol
Isocyanate
Amine curing agent
Epoxy resin
NH
NH
O
R R
(Aliphatic) Polyurea
Isocyanate
Polycarbamide
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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
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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
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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 topcoatsSatin with matting agent, High Gloss without matting agent
SatinHigh
Gloss SatinHigh
Gloss SatinHigh
Gloss
20o 60o 85o
60° Gloss
High Gloss
> 80
Semi Gloss
45-80
Satin 20-45
Matte <2085°Gloss <15
De
te
ct
or
20°
60°
85°
Satin High Gloss SatinSatin High GlossHigh Gloss
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Satin Coatings Comparison (~2 mil DFT)
Topcoat Properties Amicure IC-322Satin
Commercial 2K Waterborne PU
Commercial 2K Solventborne PU
60°Gloss (25°C / 15°C ) 39 / 45 32 / NA 24 / NARecommended 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)
< 50 (Low odor) 100 (High odor)
Working time (min) 10-15 10-15 20-30TFST phase 2/3 (hr) 1.3 / 7 1.0 / 8 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
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Chemical Resistance (ASTM D1308)(1 week after Application)
24 hr exposure
Amicure IC-322Satin
Commercial 2K Waterborne PU
Commercial 2K Solventborne PU
10% Acetic Acid 3 2 1
20% sulfuric acid 5 5 5
Ethanol 5 5 4
50% NaOH 5 5 5
Unleaded gas 5 5 5
Motor oil 5 5 5
Brake Fluid 5 4 5
Skydrol 5 4 5
Total (out of 40) 38 35 35
Ranking after exposure5-best1-worst
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Early Chemical Resistance (ASTM D1308) (1 day/week after Application)
24 hr exposure
Amicure IC-322Satin
Commercial 2K Waterborne PU
Commercial 2K Solventborne PU
10% Acetic Acid 3 / 3 1 / 2 1 / 1
20% sulfuric acid 5 / 5 0 / 5 2 / 5
Ethanol 5 / 5 5 / 5 1 / 4
50% NaOH 5 / 5 5 / 5 4 / 5
Unleaded gas 5 / 5 5 / 5 5 / 5
Motor oil 5 / 5 5 / 5 4 / 5
Brake Fluid 5 / 5 4 / 4 4 / 5
Skydrol 5 / 5 4 / 4 4 / 5
Total (out of 40) 36 / 38 29 / 35 26 / 35
Ranking after exposure5-best1-worst
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Early Water Resistance (ASTM D1308)
Cure times
IC-322Satin
2K WBPU
2K SB PU
4 hr 5 2 3
8 hr 5 3 3
24 hr 5 4 5
48 hr 5 5 5
Ranking after exposure5-best1-worst
IC-322 2K WB PU 2K SB PU
Water exposed after various cure timesWater exposure time – 24 hrs
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Performance ComparisonAmicure IC-322Satin
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 $$ $$ $$
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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
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Booth #1115www.airproducts.com/ACS
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