B-4 (HARDENER) Wakefield Thermal Solutions, B-4 (HARDENER) Datasheet
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B-4 (HARDENER)
Specifications of B-4 (HARDENER)
B-4 (HARDENER) Summary of contents
Page 1
... It possesses an excellent thermal resistance of only 0.05°C/W for a 0.001 in. film with an area of one square inch. There is no measurable increase in case temperature of a mounted semiconductor on a heat sink after the 6-month stabilization period (Time versus Thermal Resistivity graph below) ...
Page 2
... Since the hardener/resin reaction is exothermic important that batch size be matched to hardener speed. Working times given are for approximate batch sizes: A—200 gms, B—200 gms. Larger batch sizes will greatly reduce working time. ** For optimum electrical properties, dry parts for 15 minutes at 150°F (65° minutes at 75°F (24°C) to slowly evaporate the thinner and then final cure for 4 hours at 275°F (135°C). ...
Page 3
... DeltaCast™ 153 is available in quarts and gallons. Order one bottle of hardener A4 or B-4 per one quart of DeltaCast™ 153 separately. Shelf life: 2 years. ...
Page 4
... After initial cure, material may be handled, removed from fixture, etc., but has not yet achieved full properties and should be room temperature aged or post-cured as shown to achieve full physical and electrical properties. ‡ After initial cure, material may be brought to full physical and electrical properties during post-cure or may be room temperature aged for charted length of time to achieve same full properties. ...
Page 5
... Hz -60/+200 -60/+200 1 x 10e -2 1.2 x 10e -3 0.50 0.25 0.40 350/550 350/550 T (torque [in.-lb (number of fasteners) 0 (Thread Dia (contact surface area square inches) Mechanical Dimensions in. (mm 0.562 (14.3) 0.218 (5.5) 0.125 (3.2) 0.500 (12.7) 0.160 (4.1) 0.141 (3.6) ...