Sunny Day Rodney! As part of the construction of the Pinawa Heritage Sundial, I was involved in the installation of some signage. These were made of granite tablets from a local quarry. A couple were installed on the vertical face of limestone monoliths and a number were placed on a sloped concrete table.
The quarry provided me with a 2-part epoxy, Akabond 231 manufactured by Axson North America, Inc. The following web page has information on this epoxy as well as other types the company manufactures. http://www.axson-na.com/axna-ws-epoxy.html The can provides the following information: - Accepts epoxy coloring pastes for matching stone. - Bonds natural stone on vertical surfaces. - Designed for external applications. - Suitable for structural bonding. The instructions indicate the surfaces to be treated must be dry, free of dust and should be slightly roughened. The mixture will remain workable for approximately 20-30 minutes. The bonded parts can be moved after 6-8 hours and worked on after 12-16 hours. Maximum stability is obtained after 7 days. If you wish to use silicon, try the RTV100 Series silicon rubber adhesive sealant made by GE. The tube I have states that it has a 10 minute work period, is tack-free in about 20 minutes and has a normal cure time of 24 hours. The following is a technical data sheet in pdf format. http://www.dcproducts.com.au/RTV_Silicone_Solutions/Tech_Data_Sheets/RTV100S -tds.pdf Happy Dialling! Carl Sabanski www.mysundial.ca Get "Hooked on Gnomonics"! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Rodney Heil Sent: Saturday, August 09, 2008 2:51 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
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