3-M makes an epoxy DP-190, which is designed for stone and materials with dissimilar coefficients of expansion. It comes in translucent and gray -- the gray is the more durable of the two. I use it to bond glass mirrors to brass supports, and it works great. It remains flexible, but not soft or spongy; has excellent resistance to peeling; and is durable over time. It is really great stuff. DP-125 gray is almost as strong, and is often easier to find and can be purchased in smaller quantities. Don't look for it in a hardware store, you won't find it there. Order it from Grainger, or McMaster-Carr, or similar industrial supplier.
The granite industry must have its own products as well. I would start by looking at some granite tool website, perhaps by googling "granite diamond polishing", and then clicking around. - Bill Gottesman John Carmichael wrote: > > Dear Rodney: > > I’ve tried just about every glue known to man, and I particularly > dislike gorilla glue for use with stone. It’s messy, has a bright > yellow color when dry, and just doesn’t seem to hold well. It’s an odd > type of glue in that it starts to bubble up like foam as soon as you > squeeze it out of the bottle. The best adhesive that I have found is > not a glue at all. It’s clear 100% silicone caulking. It’s pretty > messy too if you’re not careful when applying it, but works great. It > is easy to clean up excess overflow when it is still wet using mineral > spirits. It’s also pretty easy to clean up even when dry if you just > rub or cut it off. It is the best adhesive I’ve found for bonding > metal to stone because it is flexible and adjusts to the different > thermal expansion coefficients of metal and stone. But it works great > bonding stone to stone. > > But since you are bonding granite to granite, you could also use epoxy > adhesive that is not flexible (the kind where you mix a catalyst with > the glue). “Liquid Nails” will also work for you. Whatever you do, DO > NOT use a water soluble glue! > > Hope this helps, > > John > > John L. Carmichael > > Sundial Sculptures > > 925 E. Foothills Dr. > > Tucson AZ 85718-4716 > > USA > > Tel: 520-6961709 > > Email: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > *My Websites:* > > (business) *Sundial Sculptures:* http://www.sundialsculptures.com > <http://www.sundialsculptures.com/> > > (educational) *Chinook Trail Sundial: > *http://advanceassociates.com/Sundials/COSprings/ > > (educational) *Earth & Sky Equatorial Sundial:* > http://advanceassociates.com/Sundials/Earth-Sky_Dial/ > > (educational) *My Painted Wall Sundial:* > http://www.advanceassociates.com/WallDial > > (educational) *Painted Wall Sundials:* > http://advanceassociates.com/WallDial/PWS_Home.html > > (educational) *Stained Glass Sundials:* > http://www.stainedglasssundials.com > <http://www.stainedglasssundials.com/> > > (educational) *Sundial Cupolas, Towers & Turrets:* > http://StainedGlassSundials.com/CupolaSundial/index.html > <http://stainedglasssundials.com/CupolaSundial/index.html> > > *From:* [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] *On Behalf Of *Rodney Heil > *Sent:* Saturday, August 09, 2008 1:51 PM > *To:* [email protected] > *Subject:* glue for stone dials > > Hi folks, > > For those of you who work with stone, what sort of glue would you use > to attach polished granite to polished granite? I was just planning to > glue the gnomon to the face. The man at the granite flooring store > told me Gorilla Glue would be just fine, but I would like to hear from > the sundial crowd. When this dial is finished, I will post a photo of > it to this list. Thanks in advance. > > Rodney Heil > > 35 deg. 37' 26" N > > 117 deg. 40' 17" W > > ------------------------------------------------------------------------ > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
