Electronics Forum | Fri Jul 20 08:26:52 EDT 2007 | cyber_wolf
SMT adhesive is hydroscopic. Some types absorb moisture faster than others. Moisture+SMT adhesive= pourous adhesive after cure. Excessive cure ramp rates can also contribute to porosity.
Electronics Forum | Wed Jul 18 09:25:58 EDT 2007 | ed_faranda
They still make SMT adhesive?!?!?! Holy SMOKES BATMAN. I haven't used SMT adhesive in, oh 9 years. But, back in "The Day", I found loctite to be best. Call your local rep in, show them your process and make them earn their money.
Electronics Forum | Fri Jul 20 10:50:26 EDT 2007 | dwanzek
Electronics Forum | Tue Jul 24 14:20:18 EDT 2007 | realchunks
Electronics Forum | Thu Jul 19 11:57:35 EDT 2007 | bk
Loctite 3609 is a pretty good smt adhesive. I'd actually recommend the Loctite 3621 instead though. It's a better adhesive on some of those pain parts plus it's actually less expensive than the 3609
Electronics Forum | Wed Dec 15 09:00:07 EST 2004 | russ
All of the SMT adhesives that I have used are non-conductive by themselves. I assume that the solder joints are formed by wave soldering?
Electronics Forum | Tue Jul 17 11:44:03 EDT 2007 | jaimebc
We are looking into switching SMT adhesives, because of the lead time with our current supplier. So if you are using one that you would recommend, please let me know. We are dispensing with a glue machine ( Universal GDM ) Thanks in advance!
Electronics Forum | Wed Dec 15 12:41:49 EST 2004 | DasonC
Check IPC-A-610C Chapter 12.1, Staking Adhesive
Electronics Forum | Wed Dec 15 04:31:26 EST 2004 | huangfox
yes,it maybe lead to test failure,because solder joint is bad
Electronics Forum | Tue Jul 17 15:26:05 EDT 2007 | swag
We use Loctite 3609 chipbonder. Works well for us.
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