neoresin dtm presentation 9-01
TRANSCRIPT
Acrylics for DTM Applications
NeoResins Acrylics for DTM Applications
T. Bergeron, P. PetersonAugust, 2001
Advantages of Blending Acrylics with Water Reducible Alkyds
• Shortens dry time
• Improves hardness development
• Can decrease resin costs
• Improves humidity resistance
• Maintains gloss
• Maintains salt fog resistance
Drawbacks of Acrylic Modification of Water Reducible Alkyds
• Need flow and leveling additives
• May increase resin costs
• May decrease salt fog resistance
Gloss of WR Alkyd-Acrylic Blends
Gloss of 50% Acrylic Blends with WR Alkyd Kelsol 3941
0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
100
Co
ntr
ol
A-6
25
A63
3
A63
9
A65
5
A60
69
A60
85
A60
99
20° 60°
Effect of Acrylics on Hardness of Water Reducible Alkyd
K o n ig H a r d n e s s o f 5 0 % A c r y lic B le n d s w i th K e ls o l 3 9 4 1
0
2 0
4 0
6 0
8 0
1 0 0
1 2 0
Kel
sol
3941
A-6
33
A-6
55
A-6
099
A-6
085
A-6
069
osci
llatio
ns
6 h r s 1 d a y 1 w e e k
Effect of A-639 on Konig Hardness of Kelsol 3941
Ef fec t o f Acry l ic M o d i f i c a t i o n o n K o n i g H a r d n e s s o f W a t e r R e d u c i b l e A l k y d s
0
2 0
4 0
6 0
8 0
1 0 0
1 2 0
Cont ro l 10%A-639
20%A-639
30%A-639
40%A-639
50%A-639
A - 6 3 9 m o d i f i c a t i o n s o f R e i c h h o l d 3 9 4 1 - B 2 G 2 - 7 0
Ko
nig
Har
dn
ess
(osc
)
day 1 day 2 day 6
Percent Hardness Improvement
Effect of A-639 on Hardness Development of Kelsol 3941
80
100
120
140
160
180
200
220
Control 10% A-639 20% A-639 30% A-639 40% A-639 50% A-639Ko
nig
Har
dn
ess
% o
f C
on
tro
l V
alu
e
day 1 day 2 day 6
9
Drytime of Various WR Alkyds Blended with NeoCryl A-639
Effect of NeoCryl A-639 on Kelsol 3906
1.00.7
0.5
2.0
1.41.0
3.8
1.61.4
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Control 10% 20%
ho
urs
set to touch dry to touch through dry
Effect of NeoCryl A-639 on Chempol 10-0091
1.0
0.5 0.4
2.0
1.0 0.9
3.9
1.4 1.4
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Control 10% 20%
ho
urs
set to touch dry to touch through dry
10
Drytime of Various WR Alkyds Blended with NeoCryl A-639
Effect of NeoCryl A-639 on Kelsol 3960
1.00.7
0.5
2.0
1.3
0.9
3.9
2.32.2
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Control 10% 20%
ho
urs
set to touch dry to touch through dry
Effect of NeoCryl A-639 on Kelsol 3961
1.00.7
0.5
2.0
1.3
0.8
3.8
2.32.1
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Control 10% 20%
ho
urs
set to touch dry to touch through dry
11
Drytime of Various WR Alkyds Blended withNeoCryl A-639
Effect of NeoCryl A-639 on Cargill 7476
1.4
0.70.5
2.3
1.00.8
3.0
1.11.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Control 10% 20%
ho
urs
set to touch dry to touch through dry
12
Gloss of Various WR Alkyds Blended with NeoCryl A-639
Effect of A-639 on 60° Gloss of WR Alkyds
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
Kel
sol
3906
-WB
1075
Kel
sol
3906
-WB
1076
Kel
sol
3961
-WB
1075
Kel
sol
3961
-WB
1076
Car
gil
l 74
76 W
B-1
075
Car
gil
l 74
76 W
B-1
075
Ch
emp
ol
10-0
091
WB
-107
5
Ch
emp
ol
10-0
091
WB
-107
6
Control 10% 20%
Water Resistance-Controlled Condensation & Water Immersion
147 hour Controlled Condensation (Cleveland Cabinet)
0.85 DFT on CRS air dry 7 daysKelsol 3941 K3941/A6085 K3941/A655 K3941/A6099 K3941/A6069 K3941/A639 K3941/A633
Blistering medium #4 none few #6 none none none noneRusting 8 9 flash flash 8 9 9Whitening moderate slight localized severe severe localized severe severe severe
168 hours Immersion @ 100°F
0.85 DFT on CRS air dry 7 daysKelsol 3941 K3941/A6085 K3941/A655 K3941/A6099 K3941/A6069 K3941/A639 K3941/A633
Blistering none none none none few #2 & #4 dense #8 noneRusting 9 10 8 10 3 5 7Whitening moderate slight severe severe moderate moderate severe
14
Oven Stability
Gloss White at 50% acrylic modification with Kelsol 3941-B2G2-70
10 days 20 days 30 days
48N-99 Kelsol control pass fail-viscous -
48N-100A A-633 pass pass pass
48N-100B A-639 pass pass pass
48N-101A A-655 pass skinning skinning
48N-101B A-6069 pass sl. skinning sl. skinning
48N-102A A-6085 pass pass pass
48N-102B A-6099 fail-gelled - -
48N-103A A-1044 pass skinning skinning
48N-103B A-625 pass pass pass
Light Duty Maintenance Benchmark
• Compared NeoResins NeoCryl A-6085 and A-6099 and a 50% blend of A-6085 and A-6099 with two top selling maintenance acrylics
• Resins were tested in both the NeoResins and competitor’s starting point formulations
• Coatings tested at 1.5 mil DFT directly on cold rolled steel cured for 7 days at room temperature
Light Duty Maintenance Benchmark
Salt Spray 312 Hours
0
1
2
3
4
A-6
099
Hig
h
Glo
ss
NU
S
A-6
085
Hig
h
Glo
ss N
US
Res
in B
Hig
h
Glo
ss N
US
A-6
099
Hig
h
Glo
ss
A-6
099
Mid
Glo
ss
Res
in B
Mid
Glo
ss
A60
85 H
igh
Glo
ss
A60
85 M
id
Glo
ss
A60
85/A
609
9 M
id G
loss
A60
85/A
609
9 H
igh
Glo
ss
Res
in A
Hig
h
Glo
ss N
US
Res
in A
Hig
h
Glo
ss
l
Light Duty Maintenance Benchmark
W a t e r I m m e r s i o n 1 6 8 H o u r s
0
1
2
3
4
A-6
085
Hig
h
Glo
ss N
US
A60
85 H
igh
Glo
ss
A60
85 M
id
Glo
ss
Res
in A
Hig
h
Glo
ss
A-6
099
Hig
h
Glo
ss
A-6
099
Mid
Glo
ss
A60
85/A
6099
Mid
Glo
ss
A60
85/A
6099
Hig
h G
loss
A-6
099
Hig
h
Glo
ss N
US
Res
in B
Mid
Glo
ss
Res
in A
Hig
h
Glo
ss N
US
Res
in B
Hig
h
Glo
ss N
US
Light Duty Maintenance Benchmark
C o n t r o l l e d C o n d e n s a t i o n 1 6 8 H o u r s
0
1
2
3
4
5
A60
85 M
id G
loss
A60
85 H
igh
Glo
ss
A60
85/A
6099
Mid
Glo
ss
A60
85/A
6099
Hig
h G
loss
A-6
085
Hig
h
Glo
ss N
US
A-6
099
Hig
h
Glo
ss
A-6
099
Mid
Glo
ss
A-6
099
Hig
h
Glo
ss N
US
Res
in A
Hig
h
Glo
ss N
US
Res
in A
Hig
h
Glo
ss
Res
in B
Hig
h
Glo
ss N
US
Res
in B
Mid
Glo
ss
Light Duty Maintenance Benchmark
Tota l Score o f Three Exposure Tests
0123456789
101112
A-6
085
Hig
h
Glo
ss N
US
A60
85 M
id
Glo
ss
A60
85 H
igh
Glo
ss
A-6
099
Hig
h
Glo
ss N
US
A-6
099
Hig
h
Glo
ss
A-6
099
Mid
Glo
ss
A60
85/A
6099
Mid
Glo
ss
A60
85/A
6099
Hig
h G
loss
Res
in B
Hig
h
Glo
ss N
US
Res
in A
Hig
h
Glo
ss N
US
Res
in A
Hig
h
Glo
ss
Res
in B
Mid
Glo
ss
Lowes t s co re i s bes t
Benchmark for DTM Coatings
• Two NeoResins coatings were compared with two commercially available, top selling DTM products
• NeoCryl XK-241 and a 50% blend of XK-241 with A-6085 were formulated into a DTM coating
• Thirteen performance tests were run comparing the commercial products with the NeoResins’formulations
Benchmark for DTM Coatings
Commercial A Commercial B XK241 XK241/6085
Hand Lotion Resistance (1 & 24 Hour Spot) Fair Very Good Excellent Excellent
Dry Adhesion (24 Hour & 7 Day) Poor Good Very Good Good
Wet Adhesion (24 Hour & 7 Day) Poor Poor Good Good
Gloss Good Excellent Excellent Excellent
Salt Spray Resistance Poor Poor Excellent Excellent
Water Immersion Excellent Very Good Good Excellent
Controlled Condensation Poor Excellent Very Good Excellent
Block Resistance Very Good Very Good Fair Good
Early Water Spot Resistance Good Good Very Good Very Good
Chemical Resistance Good Very Good Very Good Very Good
Oven Stability Excellent Excellent Excellent Excellent
Low Temperature Coalescence Excellent Poor Excellent Excellent
Impact Resistance Good Good Fair Excellent
Summary
• Water Reducible Alkyds may be modified with up to 50% of several NeoResins acrylics with improved dry time and excellent water resistance
• Formulations based on NeoCryl A-6085, A-6099 and 50% blend of A-6085/A-6099 exhibit superior performance when compared to top selling maintenance resins in DTM coatings
• Formulations based on NeoCryl XK-241 and XK-241/A-6085 exhibit superior performance when compared to top selling DTM commercial products.