Antique stone bench repair help

[hasco]

I Have this Broken stone bench top that's been in the family for decades and I need suggestions for a strong adhesive to bond theses pieces together. I have used Gorilla glue and POR putty and they may last a year or two, So any thoughts on a longer lasting bond. It will be an outside Ornamental piece only (no sitting on).It is a very hard stone ,Not Concrete and it came from the New England area originally. Thanks in Advance

 

[ZRX61]

Epoxy. The good kind.


and depending on how good ya are with a drill:
3 or 4 3in deep holes drilled in each side of the break. Epoxy steel rods in one half, when it sets, epoxy them into the other half.
Might be an idea to make the holes 1/2in for 3/8 rods. Gives fudge factor as the holes won't be perfectly aligned. (well, at least if I did it...)

 

[rockettgpw]

Have you spoken to any stone benchtop companies? they have some serious adhesives for just that task and can be tinted for color match.

 

[PugetDude]

As ZRX61 suggested, dowel the joint for structural strength. Use fiberglass rod or epoxy-coated steel pins so they don't rust and decouple from the adhesive.
Talk to a cemetary monument supplier for suggestions on the best repair adhesive. That's their business.
I think UV and weather are going to be your biggest issues.

3M 5200 is the most tenacious adhesive I know of- I got some on the soles of my work boots doing a synthetic deck project about 7 years ago and some of it is still there today.

 

[ddawg16]

Epoxy. The good kind.


and depending on how good ya are with a drill:
3 or 4 3in deep holes drilled in each side of the break. Epoxy steel rods in one half, when it sets, epoxy them into the other half.
Might be an idea to make the holes 1/2in for 3/8 rods. Gives fudge factor as the holes won't be perfectly aligned. (well, at least if I did it...)

^^ This ^^

I'd use 'all thread' rods.

A good epoxy to use is the stuff you use for foundation anchors.

 

[pizza]

+1 on the dowel (stainless steel perhaps?) and epoxy

 

[Retroman]

Use Simpson Set XP Epoxy and SS rods or something that won't rust. As said above drill, epoxy and dowel it then epoxy the face. If your dowels rust they will crack the stone and destroy it. I would go with 1/4" dowels and a 3/8" hole. Make sure your brush and blow the holes clean.

 

[nadogail]

Very interesting, than you for sharing.

 

[ddawg16]

I would use 'all thread' rods Paint them if you want...but if coated with epoxy, they won't rust.

Make sure you clean the holes out real well. Any stone dust in there will ruin the adhesion. If it was me, I'd wash the holes out with water than give it a day or so in the sun to dry.

And use the stuff Retroman said....that is the stuff I was talking about earlier....

 

[yeldogt]

It has a design ? If it's not carved ... it's a cast of something?

Once you glue something -- to fix you need to removed the glue for a good bond.

Must be careful when drilling as it's easy to weaken the stone -- especially if cast.

The typical way is to epoxy the joint and use a SS plate on the bottom .. with cast parts I have had very good luck with the Poly glue designed to attached the cap stones on EP Henry type products

 

[NETexas]

Save the stone dust to spread over the wet epoxy you fill the crack with. It will help blend the color on the top that shows. At least that is what they did to a joint in our kitchen granite counter top.


Sent from my iPad using Garage Journal

 

[23ford]

Call a stone co they will d it and it will last

 

[03ranger]

Do a search for something called "Monument Adhesives". This is used to repair Headstones, and stone monuments when their are damaged or broken.

 

[GMCGarage]

dont hammer drill, get a small core drill, diamond tip.