Electronics Forum | Wed Nov 28 17:02:28 EST 2007 | joeherz
We use TraCon's TraBond 2112 for staking applications where larger gaps are involved. It is formulated for PCB staking applications. The material is very low sag and high viscosity. It's 2part and comes in handy bi-paks. Work life is 20-30min.
Electronics Forum | Tue Nov 20 20:26:54 EST 2007 | davef
Peter: The above link to the the picture of the assembly is broken. Comments are: * Yes, RTV is completely useless for applications like you describe. Epoxy is a much better choice. * Dave G, in an archived thread on SMTnet, talks about using 3M Jet
Electronics Forum | Wed Nov 21 00:02:22 EST 2007 | ppwlee
Here is the correct link: http://members.shaw.ca/ppwlee4/Epoxy_appl.JPG
Electronics Forum | Sat Dec 01 08:40:52 EST 2007 | davef
Sam emailed us: "Dave: Many UV cure materials have secondary heat cure or air cure properties."
Electronics Forum | Tue Nov 27 18:31:02 EST 2007 | devgru
I would agree with the above. Epoxy is the way to go. You can have it formulated in different thicknesses and cure times, but you need to watch out for the exothermic heat from the curing.
Electronics Forum | Wed Nov 28 07:41:10 EST 2007 | davef
DevGru: Questions are: * What steps do you recommend taking to "watch out for the exothermic heat from the curing?" * What are typical temperatures for exothermic heat from the curing? * What is the duration of such temperatures? * Do epoxy suppliers
Electronics Forum | Thu Nov 29 21:28:43 EST 2007 | hussman
Henkel Loctite makes a hot melt just for this. Do a web search on Loctite Hot Melt and you can see for yourself. Material comes in a variety of ways - we use the 10 inch sticks and their glue guns specially made for the material. Works well, is fa
Electronics Forum | Fri Nov 30 15:23:03 EST 2007 | jdumont
The hot melt is prob the only way to go for that size gap. If you could decrease that gap I would suggest using 3M Scotchweld DP100FR. Check it out. We use the duo pak cartridges and mix nozzles with the gun. Very simple use and works great in our ES
Electronics Forum | Tue Nov 20 19:08:15 EST 2007 | Peter
Hello, I would like to ask for opinion on an epoxy application. We apply RTV to bond and secure 2 electronic devices on a PCB. But after noticing the RTV bond breaking off during vibration test, our customer has specs in a 5min 2-part epoxy (made
Electronics Forum | Tue Jul 28 13:27:31 EDT 2009 | davef
It's possible that there is limited application of "3M™ XYZ-Axis Electrically Conductive Adhesive Transfer Tape 9719" similar to your intended use. What do 3M™ application types say? Certainly high temperature soldering would make a mess of a piezoc
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