| Key Physical Properties | DOWTHERM™ J | SYLTHERM™ XLT | SYLTHERM™ HF |
|---|---|---|---|
| Freeze Point (°F) | -120
|
-168
|
-115
|
| Boiling Point (°F) | 358
|
345
|
410
|
| Flash Point (°F) | 136
|
116
|
145
|
| Viscosity (cps at-70°F) | 4.6
|
7.6
|
10.0
|
| Viscosity (cps at -100°F) | 8.0
|
12.6
|
16.7
|
| Vapor Pressure (psia at 70°F) | 0.015
|
0.02
|
0.01
|
| Thermal Properties (-50°F) | DOWTHERM™ J | SYLTHERM™ XLT | SYLTHERM™ HF |
|---|---|---|---|
| Thermal Conductivity (Btu/hr ft² °F/ft) |
0.0822
|
0.0717
|
0.0712
|
| Density (lb/ft³) | 56.87
|
56.28
|
58.56
|
| Specific Heat (Btu/lb °F) | 0.394
|
0.354
|
0.364
|
| Viscosity (cP) | 3.3
|
5.6
|
7.3
|
| Heat Transfer Coefficient (Btu/hr ft²°F) (7 ft/sec, 1" pipe) |
195
|
134
|
123
|
| Pressure Drop (psi/100 ft) | 11.15
|
12.27
|
13.44
|
| Pump Horespower (100' & 70% pump efficiency) |
0.159
|
0.175
|
0.191
|
Strategically located across North America and EMEA for fast, reliable delivery. Every order, every time.
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - Europe, Middle East, Africa
