Electronics Forum | Wed May 07 09:02:29 EDT 2003 | cyber_wolf
I was wondering if anyone has done a study on thermo couple attachment with light cure adhesive.I have read all the papers and articles about aluminum tape, Kapton, and high temp solder.I have yet to hear anything regarding the accuracy of light cure
Electronics Forum | Thu Feb 16 21:22:12 EST 2006 | davef
It is quite common for this to be done with an activator cured acrylic adhesive (eg, Dymax, Loctite, Permabond). This method took over from mechanical clips and epoxy some years ago because using: * Mechanical clips changes the magnetic circuit. * Ep
Electronics Forum | Thu Jun 25 09:16:53 EDT 1998 | Russ Miculich
I would suggest you call Dymax (may be Diemax) - they are the adhesive experts when it comes to UV curing materials. I am very sorry, but somehow they are not in my database. You should be able to find them on the net under and adhesives+UV search.
Electronics Forum | Mon Jun 22 17:50:13 EDT 1998 | Dave F
| Dear Sirs, | I need somehelp to know some sources for white epoxy UV curing SMT adhesive glue ( not alphametal and heuareus ) ,Please help with companies names and tel/fax numbers !! | Thanks all | Mohamed Ragai Mohamed: I'm not positive if all
Electronics Forum | Wed May 07 09:53:39 EDT 2003 | cyber_wolf
Thanks for the response Dave. FYI: In my experience using the light cure adhesive, I have found that the newer the adhesive is the less prone it is to popping off during a reflow cycle. Also I have found that it only takes a very small amount to sec
Electronics Forum | Thu Feb 17 10:33:53 EST 2005 | Frank R.
I use conformal coating DYMAX #984-LVUF and I don't know if it's a problem of viscosity but 0805 components are not covered properly. We use a dispensor to applied it and we cured it by UV. Even if I apply a thicker layer, the coating seems to have
Electronics Forum | Fri Feb 18 15:27:38 EST 2005 | jluckenbaugh
Frank R, I believe the Dymax #984-LVUF is a POLYURETHANE RESIN. I have used Humiseal 1A27 and 1A33 for several years with great success. Both of these materials are High VOC materials. If your customer does not require these materials to be aproved
Electronics Forum | Sat Oct 29 09:10:17 EDT 2005 | davef
You're correct that Room Temperature Vulcanizing (RTV) adhesive is pretty much a cosmetic when it comes to securing components. Beyond that it contains silicone, which produces unsolderable connections in electronics. Further, many RTV seep acidic
Electronics Forum | Fri Oct 06 15:12:17 EDT 2000 | Dave F
Alberto: Consider Dymax 911. It�s wave solderable and passes Cl ion, copper mirror, SIR, and electromigration tests. We have heard good things about Masterbond uV curables, but have not looked at them. 911 doesn�t cure very deep into the little d
Electronics Forum | Thu Feb 17 15:01:23 EST 2005 | davef
We're not familiar with your DYMAX #984-LVUF. The problem is not with your conformal coating. The problem is with your 0805 [and not all of 0805, probably just those from a specific supplier]. This lack of coverage of components is called dewetting
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