Electronics Forum | Wed May 25 09:56:27 EDT 2005 | jdumont
What is everyone using to secure their caps on products that go through ESS testing. We have been using Dow 3140 RTV but it takes too long to dry and I read that RTV isnt the best anyhow. Any suggestions...
Electronics Forum | Wed May 25 10:29:41 EDT 2005 | chunks
Hot melt from a glue gun. Works well but a pain if the part has to be replaced.
Electronics Forum | Wed May 25 10:13:25 EDT 2005 | davef
Look here, while you're waiting for others to reply: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=33826
Electronics Forum | Wed May 25 11:51:27 EDT 2005 | jdumont
Yea that was my post from a while back. Never really got any good answers though. Let me know if anyone knows of anything. Thanks in advance... JD
Electronics Forum | Wed May 25 12:12:26 EDT 2005 | Dave G
3M jetmelt. A bit better than off the shelf reg hotmelt. Also use a GE white RTV. Never had any caps come off the board with either. DG
Electronics Forum | Wed May 25 12:29:39 EDT 2005 | chunks
Hi Dave, How/why is the 3M better? Sounds like you did some research and was wondering if reg. ol' hot melt might cause some other problems to the board. I bet the 3M costs a bit more too.
Electronics Forum | Wed May 25 13:56:45 EDT 2005 | jdumont
So it looks like 3M Jetmelt 3748 and 3779 would be suitable for what i need. Were either of these the ones you were refering to?
Electronics Forum | Fri May 27 11:14:20 EDT 2005 | jdumont
Looking at the data for the 3748 material it says its only heat resistent to 79 C. Im going to go with the 3779 instead because of the higher temp rating (149C). Thanks JD
Electronics Forum | Thu May 26 09:47:13 EDT 2005 | Dave G
We use the 3748. We picked it many moons ago after doing product HALT & HASS testing. Basically the run of the mill hotmelts didn't hold up as well under the conditions our equipment lives in. (We do a lot of MIL,Aero & Industrial motor/actuator driv
Electronics Forum | Mon Aug 29 18:14:20 EDT 2005 | OverTheHill
Good day, We use Loctite 3616 for securing SMD's to the PCB before wave. On rare occasions, we have to remove and replace the secured part. Our operators are having a diffucult time removing parts (large QFP's, etc). My questions to this forum: 1)
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