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Green Chemistry Does Not Fear Humidity in a Floor
Dr. Jean-Luc DallonsCardolite Corporation
Presented at a meeting of the Thermoset Resin Formulators Association at the Hyatt Regency Savannah in Savannah,
Georgia, September 10 – 11, 2007
This paper is presented by invitation of TRFA. It is publicly distributed upon request by the TRFA to assist in the communication of information and
viewpoints relevant to the thermoset industry. The paper and its contents have not been reviewed or evaluated by the TRFA and should not be construed as
having been adopted or endorsed by the TRFA.
Green Chemistry Does Not Fear Humidity In a Floor
TRFA – Savannah, GA – September 2007
Dr Jean-Luc Dallons – Cardolite Corporation
Content
IntroductionPhenalkamine TechnologyHumidity ToleranceCoating on Green ConcreteHumidity in the BasementSolvent FreeConclusions
Primer can however be the source of huge problems
All depends on surface preparation
The foe is humidity(Basement – Rainfall – Not fully cured concrete)
Loss of AdhesionBlistering
Phenalkamine Technology
Cardanol
Phenalkamines
CNSL
Cardanol
Phenalkamines
CNSL
Cardanol
PhenalkaminesPhenalkamines
CNSL
Cardanol
Phenalkamines
CNSL
Cardanol
PhenalkaminesPhenalkamines
CNSL
Cardanol
PhenalkaminesPhenalkamines
CNSL
Cardanol
PhenalkaminesPhenalkamines
CNSL
Humidity Tolerant Primer (Rainfall)Concrete immersion
(1 week)
1
Coating after 2 h drying(300 µm)
2Top-coated with Desmodur VL (4mm thick)After 7 days dryning of the primer
@ 8 °C under 85 % Hum.
3
Adhesion TestPull-off strength Method
After 7 days drying @8°C under 85 % Hum.
Concrete immersion(1 week)
1
Coating after 2 h drying(300 µm)
2Top-coated with Desmodur VL (4mm thick)After 7 days dryning of the primer
@ 8 °C under 85 % Hum.
3
Adhesion TestPull-off strength Method
After 7 days drying @8°C under 85 % Hum.
Humidity Tolerant Primer (Rainfall)
Phenal # 1 Phenal # 2 Bench MarkPhenal # 1 Phenal # 2 Bench Mark
22.8 kg/cm² 26.5 kg/cm² 1.5 kg/cm²
21.4 kg/cm² 21.6 kg/cm² 33.3 kg/cm²
Not Fully Cured Concrete
3535
0
10
20
30
40
50
60
70
0 5 10 15 20 25 30
Curing Time (days)
Adh
esio
n St
reng
th (N
/mm
²)
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00
9,00
Moi
stur
e C
onte
nt (%
)
Ahesion strength (N/mm²)
Primer Adhesion (N/mm²)
Moisture Content (%)
Humidity in BasementConcrete immersion
1
Coating of the sidesafter drying (3 to 4 h)
2One week immersion
3
Coating of the surfaceAfter drying (3 to 4 h)
4Partial immersion and IR warming according to a cycle of 8 h per 24 h
5
Concrete immersion
1
Coating of the sidesafter drying (3 to 4 h)
2One week immersion
3
Coating of the surfaceAfter drying (3 to 4 h)
4Partial immersion and IR warming according to a cycle of 8 h per 24 h
5
Humidity in Basement
Test
Top Coated with PUPrimer
TestTest
Top Coated with PUTop Coated with PUPrimerPrimer
Solvent Free
Component Quantity (pbw) Part A Bisphenol A/F Epoxy resin 100 Part B Phenal #1
Additives 50.00 3.75
Conclusions
Phenalkamines Bring About :
Humidity Tolerant PrimersSolvent Free CoatingsRenewable Raw Material
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