Repair challenge: broken stone pestle

[KLF]

This is a pestle for the spice grinder we have in the culinary kitchen, it appears to be natural stone, maybe granite. It fell off the counter and broke in half, the chef asked me to try to repair it. Any ideas? I really think it needs some sort of pin across the break, but not sure how to get it aligned. I have a hammer drill and bits, but not sure the best adhesive either, maybe a 2-part epoxy?

 

[Mace]

most likely marble. 2 part epoxy should work fine.

 

[tag3]

Put it together and twist gently to find where it is supposed to sit. Mark down the side for alignment and I'd use super glue.

 

[e9999]

Long time ago bought a 2parts special adhesive for stone. A german name. Seemed ideal at the time.

 

[neil]

Long time ago bought a 2parts special adhesive for stone. A german name. Seemed ideal at the time.

try contacting a grant top installer for advice/ epoxy,etc

 

[rusty_tlc]

It's marble, I have its twin in my kitchen. There is lots of sheer force on those when in use, I'd try to figure out a way to put a pin in there.
Try drilling one side then use some gear marking grease on the drilled side. Mate the two sides together, the hole will show as a clear spot on the other side so you know where to drill that side. If the holes are a touch bigger than the pin you don't need to get everything exact, just use plenty of epoxy to fill the extra space.

 

[Joe_E]

It's marble, I have its twin in my kitchen. There is lots of sheer force on those when in use, I'd try to figure out a way to put a pin in there.
Try drilling one side then use some gear marking grease on the drilled side. Mate the two sides together, the hole will show as a clear spot on the other side so you know where to drill that side. If the holes are a touch bigger than the pin you don't need to get everything exact, just use plenty of epoxy to fill the extra space.

This is what I would try as well.
Using a small concrete bit in a hammer drill most likely.

 

[FJ40-GARAGE]

http://www.akemi.de/en/

 

[tclark]

I'm all for fixing stuff but you can buy a whole new mortar and pestle for like $20.

 

[mudbludger]

Never!!! that would mean admitting defeat. Epoxy first, let it harden under clamps then pin and glue again. I am forever fixing things like this for the wife

 

[Mace]

If you are going to drill after epoxy, put the pestle in a tube and then pack the tube with sand. That'll stabilize the pestle while supporting it..

 

[grapestomper]

Drop it again so you don't have to mess with it.
Get a new one.