On Sep 23, 2009, at 3:09 PM, trag wrote:

>
> Thank you for all the suggestions, gentlemen.   There are some good
> ones here.   You guys did a better job than the folks over at Ars
> Technica.  :-)
>
> I think that I will try a double sided tape as that appears to be what
> was used before.   Picking the correct tape is the difficult part.  I
> will look at the thickness of the old tape more carefully when I am at
> home.
>
> Derek, do you think that a foam core is essential?    This one in the
> Double Coated Tape section looks promising.   It is thin, and
> available in single affordable rolls but does not have a foam core.
> <http://www.shop3m.com/dt272991035.html>  I may call 3M tomorrow (or
> after I've more closely examined the old tape and possibly put a photo
> on the web) and see if they know if there's a tape typically used for
> this application.

To be honest, non-foam double sided tape would probably work for  
you.  The foam tape is great where there are irregularities (as it is  
somewhat a gap-filler and is available as thin as .4mm) or where  
movement or vibration is a factor.  It will pretty much always  
outperform non-foam double sided tape, but the price can be difficult  
to justify.  If you do go the tape route, keep a couple things in  
mind...  Clean and warm.  Be sure to remove all the old adhesive and  
clean the surface (you don't want oils from your hands screwing  
things up) prior to applying the new tape, and all adhesives (to my  
knowledge) perform markedly better when applied to a warm surface.

> Gregg, I like your blue tape idea to contain a free adhesive.   If the
> tape plan doesn't pan out, I will try that, probably with the silicon
> adhesive that Lee recommended.  I've built and repaired aquariums, so
> I am familiar wtih the stuff and practiced at using it.  Plus, if it
> does not perform satisfactorily, silicon is easy to remove so that
> something else can be tried.  And blue tape will keep it off of the
> parts of the glass surface where I do not want it.

Again, cleanliness is important...  And be certain to keep the  
silicon as thin as possible (clamp or weight to press the excess out)  
while covering the greatest area possible.

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