Glycol and freezing points

Ethylene Glycol / Water Mixtures

EG Conc
Wt.% (Vol.%)

Freezing Point,
F(C)

Boiling Point,
F (C)

0 (0

32 (0)

212 (100)

10 (9)

25 (-4)

215 (102)

20 (18)

20 (-7)

215 (102)

30 (28)

5 (-15)

220 (104)

40 (38)

-10 (-23)

220 (104)

50 (48)

-30 (-34)

225 (107)

60 (58)

-55 (-48)

230 (110)

70 (68)

<-60 (<-51)

240 (116)

80 (79)

-50 (-46)

255 (124)

90 (90)

-20 (-29)

285 (141)

100 (100)

10 (-12)

390 (199)

 

Propylene Glycol / Water Mixtures

PG Conc.
Wt.% (Vol.%)

Freezing Point,
F(C)

Boiling Point,
F (C)

0 (0)

32 (0)

212 (100)

10 (10)

25 (-4)

212 (100)

20 (19)

20 (-7)

215 (102)

30 (29)

10 (-12)

215 (102)

40 (40)

-5 (-21)

220 (104)

50 (50)

-30 (-34)

220 (104)

60 (60)

-60 (-51)

225 (107)

70 (70)

<-60 (<-51)

230 (110)

80 (80)

<-60 (<-51)

245 (118)

90 (90)

<-60 (<-51)

270 (132)

100 (100)

<-60 (<-51)

370 (188)