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What kind of epoxy or glue should i use for bga chip corners?

post #1 of 2
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Had no idea where to put this so i figured here was as good as any.

I've done a solder reflow of a bga video chip on a thinkpad. Now, i noticed the nvidia one on my toshiba has some sort of super hard epoxy on each corner, supposedly to prevent stress fractures in the solder. I'd like to do this to my repair to stop future problems.

Any ideas? So far i've considered using:
clear automotive epoxy (says it can't bond to poly-something, is this a problem?)
jbweld or quick (withstand up to 300/500 deg)
plain old superglue

any ideas as to what the proper substance for the job would be? (i've been googleing and will continue to. nothing so far)
    
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Q9300 @3.0ghz GA-P35-DS3L NVIDIA 8600GT 512MB DDR3 2x1GB MUSHKIN DDR2-800 
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post #2 of 2
http://www.tra-con.com/main/newshome.asp?x=1

They offer free samples which would be enough to do what you're doing. They make adhesives for tech applications.
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