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60
50
40
30
20
10
15
(60)
F
. 10: Effect of Temperature on Viscosity
IG
The chart in F
. 10 shows the effect of temperature in
IG
reducing two fluids to a sprayable viscosity, between 20
and 34 seconds using a No. 2 Zahn cup.
Note that temperature has more of an effect on high
solid fluids than on thin enamels. That is, for the same
10° temperature rise, the viscosity of the high solid fluid
is reduced more than the enamel. This means the high
solid fluid is temperature sensitive, and you need to take
this into consideration when planning your system.
309524N
nU
1
nU
2
25
(80)
Typical high-solid paint
Typical enamel paint
35
45
(100)
(120)
Temperature
Once the fluid is reduced to about 34 on the chart, vis-
cosity reduction begins to level off and temperature will
not significantly improve sprayability (it only uses more
energy).
Typical spray
viscosities
o
C
55
65
(140)
o
(
F)
Installation
13
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