High Temp Epoxy Glue/Sealant info please

Araldite 2015 is rated to 120C. Some of the heat assisted cure epoxies probably go higher than that.

Colin Bignell

Have look at high temperature silicones. I think the glass doors in some oven are held in with this stuff. Maybe RS carry something? RSWWW.com

Bob

High temperature silicone, such as:

Beware of these temp ratings. IME epoxy with highish temp rating was utterly useless when subjected to boiling water. It may have survived, but only as a soft squishy useless mess.

NT

We used a room temperature setting Araldite rated at 150C for assembling medical devices and it was perfectly happy being autoclaved in steam at

Colin Bignell

"nightjar .me.uk>" >

Meow, yep I didn't read the instructions on the Araldite 65 and it's a mess. Thanks Colin, if I could track down the rebadged Araldite 150C

Thanks Bob and Grunff, I hadn't given silicone a thought, assuming the rubber wouldn't stand up to 135 psi. That's a handy link Grunff, the Galva Mate Grey looks like it may do the job.

Bertie

In case it's of any help, I filled a cracked Rayburn flue ( just above the air valve on top on the stove ) with JB Weld - it's still holding up after many years. I'd imagine the temperature of the flue at that point exceeds your requirements.

Regards,

I tracked down Araldite 2014 - 1 high temperature, but the cost is £11.44 + vat + £6 p&p and a minimum order of £30. Thanks Stephen, the JB Weld spec seems too good to be true,

Bertie

I've never read the JB specs - it was originally recommended to me by a car mechanic when I needed a cheap solution for a frostbitten Land Rover engine with a cracked engine block. Drained the core, dried the crack, shoved in a wadge of JB Weld and never had a problem with it for the rest of the engine's life.

I should think it's cheap enough to be able to grab a packet and try it out on a test piece. Stick a dollop on an old bolt or something, let it cure for a couple of days then boil it up for a couple of hours to see what happens!

Regards,

the following specs 500F (260C) and waterproof, it should do the job.

I'll update.

Bertie

Got a reply from JB Weld, confirming that it will bond to stainless. To play safe, I've roughened up all stainless surfaces with some fine Wet & Dry and it's looking good. I'll give it another 12 hours to cure and test tomorrow.

Bertie