CA fumes affect some people more than others. There are many model airplane builders that have had to avoid it entirely. Epoxy is no free ride. It has an accumulative effect in the body. It is best to avoid skin contact when not cured. John Ferrell http://DixieNC.US ----- Original Message ----- From: "Philip Stortz" To: Sent: Monday, June 14, 2004 11:23 PM Subject: Re: [EE:] Glue for heatsink > definitely, thermally conductive epoxy. try some of the distributors > and you may also be able to find the tape, though it isn't usually as > good. by the way, as with all thermal interface material, thinner is > better. use the thinnest possible layer. also, with the tape there are > some that stick to ceramic packages but not to plastic. i purchased > some surplus heatsinks with the tape on them and wondered why they fell > off until i looked it up. you may be able to coax a sample out of > thermalloy or aavid if you aren't going to be using it much though it's > best to buy some eventually. > > don't use super glue! apart from the fact that it is not an ideal > thermal conductor, if it gets heated, i.e. by a soldering iron it > releases cyanide fumes! i found this out the hard way separating > plastic parts with a dremel tool which heated the super glue, 2 tiny, > tiny whiffs and i still felt the effects the next day! a big blob on a > lead that gets soldered could be your last, or at least not at all fun. > as far as i know, there isn't even a specific antidote for cyanide, it's > a bad poison. i think it's hydrogen cyanide that gets released, it's > very acrid, but i don't know for sure. frankly, i'm surprised there > isn't a warning about it yet, cutting things apart with a dremel tool > isn't very unusual, i guess it hasn't done any serious damage yet to > anyone with access to a lawyer. honest, it's bad. if it's another > toxin, or if only some super glues have this behavior (there are a > couple of slightly different types) i'd love to know. i still use super > glue of course, but not on anything likely to ever see a soldering iron. > > William Chops Westfield wrote: > > > > On Monday, Jun 14, 2004, at 14:23 US/Pacific, Dragisa Krsmanovic wrote: > > > > > > What do you use to glue a heatsink to a chip ? > > > > > There are a bunch of special purpose glues for this, several of which > > are probably sold at your local computer store. Most seem to be > > epoxies loaded with alumina or silver. http://www.arcticsilver.com > > seems to be "industry standard" for PC overclockers and similar. > --------- > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads