12
Enertech Global
IOM, WD Models
0.9600
0.9700
0.9800
0.9900
1.0000
1.0100
1.0200
1.0300
1.0400
1.0500
-5
0
5
10
15
20
25
30
32
Specific Gravity
Freeze Protection (deg F)
Procool
Methanol
Propylene Glycol
Figure 6: Antifreeze Specific Gravity
Section 6: Antifreeze
⚠
CAUTION
⚠
Use extreme care when opening, pouring, and mixing flammable
antifreeze solutions. Remote flames or electrical sparks can ignite
undiluted antifreezes and vapors. Use only in a well ventilated area.
Do not smoke when handling flammable solutions. Failure to observe
safety precautions may result in fire, injury, or death. Never work with
100% alcohol solutions.
Notes:
1.
Consult with your representative or distributor if you have any questions regarding antifreeze selection or use.
2.
All antifreeze suppliers and manufacturers recommend the use of either de-ionized or distilled water with their products.
Table 5: Antifreeze Percentages by Volume
Antifreeze Type
Minimum Temperature for
Freeze Protection
10°F
-12.2°C
15°F
-9.4°C
20°F
-6.7°C
25°F
-3.9°C
ProCool
(Ethanol)
25%
22%
17%
12%
Methanol
25%
21%
16%
10%
Propylene
Glycol
38%
30%
22%
15%
Geothermal
Transfer Fluid
(GTF)
Mix according to manufacturer’s directions
on container label
Antifreeze solutions are shown in pure form - not premixed
GTF is a premixed Methanol solution