Interface Materials
thermal greases
Greases
thermal greases
  Sil-Free™
thermal greases
  Ther-O-Link

  Ultrastick
thermal greases
  Thermalcote™
thermal greases
  Thermalcote™II

Thermalcote™ Thermal Grease

Thermalcote (Part #: 249, 250G, 251G, 252G, and 253G)

Thermalcote™ is a superior thermal joint compound of thermally-loaded silicone-based grease for use with all heat sinks. It improves the transfer of thermal energy across the metal-to-metal interfaces between the transistor or rectifier case and the heat sink.
Thermalcote conducts heat approximately 15 times better than air and more than 4 times better than unloaded silicone grease. It is non-toxic, extremely stable, and neither cakes nor runs from -40° to 204°C (-40°F to 399°F).

» MSDS Safety Sheet for Thermalcote in PDF format 41K

Thermalcote Resistance Calculator
Enter the area of the device
that will contact the heat sink:		 mm2

Enter the grease thickness:
mm
 
Interface Resistance =

Formula


Color Opaque White
Operating
Temperature Range		 -40°C to 204°C (-40°F to 399°F).
Thermal
Conductivity		 0.765Wm-1°C-1 (0.442 Btu/hr ft °F
Dialectic
strength 1.27 mm gap(0.050" gap)
 11.8 x 103volts/mm (300volts/mil)
Cleaning
solvent
 Mineral Spirits
or Turpentine
Specific gravity 1.6
Evaporation, 24 hours@200°C (392°F), wt% 1
Shelf Life
 Indefinite1 (unopened)
One Year (opened)

(1) It is recommended that the containers be turned over every 6 months to minimize settling for ease of mixing.

Ordering Information

Part No. RoHS PCN Net Weight
249 28 grams (1 oz) tube
250G 57 grams (2 oz) tube
251G .45Kg. (1 lb) can
252G 2.27Kg. (5 lbs) can
253G 4.54Kg. (10 lbs) can

Thermalcote™II (discontinued)

Thermalcote™II (349G,350G,351G has been discontinued
Aavid Thermalloy can no longer supply Thermalcote™II product.
Please see our Sil-Free™ line of product instead.
Part No. PCN
349G
No longer available
350G
No longer available
351G
No longer available
Check Distributor Stock
Enter a part number for
pricing and availability.