Have a high current resistor - bit like a TO220 case without the tag or hole - which was fixed to the heatsink via a double sided sticky heat conducting pad. No insulation required.
It has come loose. Do I have to get some of that special expensive double sided tape, or would any common glue do?
Hi Dave,
I have used this:
The thing with
Good luck
David
Most glues fail at 200C. What temp does it reach? Cant you just use a bit of wire to tie it down?
NT
In article , Dave Plowman (News) writes
Plumbers' Gold sealant/adhesive is good to 150degC but I expect you'd need to load it with some kind of metal powder to get decent thermal conductivity.
Not sure if conventional epoxies would work at the temp range of power resistors (Ali canned ones are rated to 200degC).
Safe option is Arctic Alumina Thermal Adhesive (2 part) which is good to
150degC and I've managed to get it for 7quid shipped so not too excessive.Currently nine quid shipped here but googling may get it for less:
Also available from a UK supplier
It goes hard like a cross between silicon sealant and 'no more mails'. Then it's not greasy nor messy.
David
I repair some boards where the heatsinks are glued to stepper motor driver chips, which run pretty damned hot. When the chips are replaced, the heatsink has to be swapped onto the new one, and I use this
Arfa
Since it's not something I'll need everyday, I've bought some self adhesive pads from Ebay designed for the job.
But thanks to everyone.
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