Table of Contents
Advertisement
I
PROPYLENE GLYCOL CHART
Percent by
volume
32.4
32.8
33.1
33.5
34.0
34.4
35.0
35.5
36.5
37.5
38.2
38.5
For most applications, G&D Chillers recommends no less than and no more than
35% propylene mixture.
The volume percentages in this table apply for pure propylene glycol; however,
inhibited propylene glycol solutions will require higher volume percentages. For
example, a solution of 36.6%vol DOWFROST contains 35%vol pure propylene glycol.
Use the refractometer included with the chiller to verify proper glycol
concentration.
Percent by
Freezing point
weight
33.0
33.4
33.7
34.0
34.6
35.0
35.6
36.0
37.0
38.0
38.7
39.0
Degrees Brix
°F
°Bx
5.3
24.4
4.8
24.8
4.4
25.0
3.9
25.3
3.1
25.8
2.4
26.1
1.5
26.5
0.8
26.9
-0.8
27.5
-2.4
28.0
-3.7
28.4
-4.2
28.5
19
Advertisement
Table of Contents
