Thread: Heat Resistant Glue

My only suggestion, and I don’t know if it will work. Is get someone that does pottery to stick it back together with clay, and re-fire the lid in a kiln.
Is there anyone in your area doing pottery or ceramics ?

Someone close to me who does ceramics told me its doable. There is a product by Mayco, called Clay Mender. It will require re-firing in a kiln though. You will need to find someone who has a kiln to do a proper repair.

Thanks Brad for that possibility.

I am leaning more towards a quick fix, which of course may be foolhardy.

My limited reading is that there are often varieties of well known glues that have an additional additive which makes them suitable for hot situations. I think Loctite makw a product called GO2 gel, but I have not located it in Oz. Gorilla Construction glue may be suitable but I canot get confirmation for that. Various silicons have heat resistant properties, but they are more for sealing than gluing. For example, I have heard that race cars were somtimes assembled with silicon instead of a gasket.

I was hoping somebody has experience of heat proof glues.

Regards
Paul

There is always the Kintsugi option - the traditional Japanese art of repairing broken, chipped and cracked pottery using lacquer and gold.

Perhaps a little extravagant though.

Originally Posted by Mobyturns

There is always the Kintsugi option - the traditional Japanese art of repairing broken, chipped and cracked pottery using lacquer and gold.

Perhaps a little extravagant though.

Paul would keep a few spare gold bars in the same cupboard as his good saws, so that’s possibly an option 🤠.

Originally Posted by Bushmiller

Thanks Brad for that possibility.

I am leaning more towards a quick fix, which of course may be foolhardy.

My limited reading is that there are often varieties of well known glues that have an additional additive which makes them suitable for hot situations. I think Loctite makw a product called GO2 gel, but I have not located it in Oz. Gorilla Construction glue may be suitable but I canot get confirmation for that. Various silicons have heat resistant properties, but they are more for sealing than gluing. For example, I have heard that race cars were somtimes assembled with silicon instead of a gasket.

I was hoping somebody has experience of heat proof glues.

Regards
Paul

I would be worried about going the construction glue route for two reasons.
1- the possible toxicity of any such glue when used in a vessel used for cooking your food.
2- if you try various types of glue and they fail, you have likely contaminated the broken surfaces, and then it may make the clay mender option a no go.

I would be talking to any pottery type people that are in your area, it could end up being the cheaper option. They might put it in the kiln when they are firing some other stuff if they have room.

Perhaps one of the high temp epoxy putties may be suitable, the types that automotive stores typically stock.

Originally Posted by Ironwood

I would be worried about going the construction glue route for two reasons.
1- the possible toxicity of any such glue when used in a vessel used for cooking your food.

Brad

That is an issue that had ocurred to me, but I forgot to mention. A few years back I had a kiln, but it was sold without every having been used and more recently the local Arts and Crafts sold their kiln too.

Regards
Paul

The Bundaberg Pottery Club is in the same craft center as our Woodworking Guild; if you can't get it repaired locally send it to me and I'll get it sorted.

From a brief look at "Clay Mender" the repair process is quite simple.

I’d add another negative to The two that Ironwood mentioned. Think about what happens if the glue fails while carrying a scalding hot pot from stove to benchtop.

Originally Posted by Arron

I’d add another negative to The two that Ironwood mentioned. Think about what happens if the glue fails while carrying a scalding hot pot from stove to benchtop.

Arron

If it were the main body of the pot it would be a real concern, but it is only the lid that is broken. I am sure there would be a suitable glue, but the question of toxicity is slightly concerning , although again it is on the lid, arguably not in direct contact with the food and in minimal quantity being limited to a glue line. When we are considering food safe finishes, for example, we are debating an all over covering. However, poison is poison!

Regards
Paul

Originally Posted by Bushmiller

Thanks Brad for that possibility.

I am leaning more towards a quick fix, which of course may be foolhardy.

My limited reading is that there are often varieties of well known glues that have an additional additive which makes them suitable for hot situations. I think Loctite makw a product called GO2 gel, but I have not located it in Oz. Gorilla Construction glue may be suitable but I canot get confirmation for that. Various silicons have heat resistant properties, but they are more for sealing than gluing. For example, I have heard that race cars were somtimes assembled with silicon instead of a gasket.

I was hoping somebody has experience of heat proof glues.

Regards
Paul

My brother used to be part of a touring car race team back in the 80’s and 90’s and they used silicone fir gaskets in their engine builds
Not sure if that is a route I would take in your scenario though. I think the biggest issue you need to overcome is the different coefficients of expansion between the ceramic and the glue when subject to different temperatures

Originally Posted by Beardy

My brother used to be part of a touring car race team back in the 80’s and 90’s and they used silicone fir gaskets in their engine builds
Not sure if that is a route I would take in your scenario though. I think the biggest issue you need to overcome is the different coefficients of expansion between the ceramic and the glue when subject to different temperatures

Beardy

I mentioned silicone in my original post and the use for head gaskets, but that is more for sealing than gluing as the head bolts keep everything in place. I have always assumed it was an easy way to raise the the compression ratio too on the race vehicles. differential expansion is yet another dynamic so a glue that remains flexible would be of benefit.

Regards
Paul

Originally Posted by Bushmiller

Beardy

I mentioned silicone in my original post and the use for head gaskets, but that is more for sealing than gluing as the head bolts keep everything in place. I have always assumed it was an easy way to raise the the compression ratio too on the race vehicles. differential expansion is yet another dynamic so a glue that remains flexible would be of benefit.

Regards
Paul

When we are discussing silicon in Race engines, remember race engines are generally Blue printed,I suspect the crack in the lid, is not too the same machine tolerances.
Tho I could be wrong Paul, not sure if you do perfect cracks [emoji3064].

Cheers Matt.