How strong is steel reinforced epoxy (cold or chemical weld)?

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Lance_dBoyle
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by Lance_dBoyle » Thu Jan 30, 2020 10:42 am

I need to weld a nut to a stainless steel tube but I do not have a welder. I do have something called J-B Weld steel reinforced epoxy which I believe is also known as cold welding or chemical welding. I plan to have a threaded rod go through the tube and screw into the nut, and the rod, tube and nut will be subject to a lot of vibration. I wonder about the strength and durability of using epoxy. The product says it can withstand 5020 psi. Does anyone have experience with chemical welding? How does the bond compare to conventional welding? Do you have any recommendations or another way to securely afix a nut to a tube? Thanks
dewaltdisney
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by dewaltdisney » Thu Jan 30, 2020 11:32 am

I used it to repair a cast aluminum Pressure Relief Valve on my vintage tractor. It was a pinhole that developed and oil squirted out. The repair was fine
I do not know how it will work for you but it must be really clean to get a good bond. I used carburetor cleaner spray.

I think it is worth a try for six quid.

DWD
Bob225
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by Bob225 » Thu Jan 30, 2020 5:07 pm

Get it tig welded or use a rivnut imho
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by Rorschach » Thu Jan 30, 2020 8:02 pm

Use the glue and then drill and cross pin it.
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jaeger
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by jaeger » Thu Jan 30, 2020 8:57 pm

Without a welder I'd also use a rivnut, for a one-off you don't even need the tool, it can be done without.

https://www.youtube.com/watch?v=I6H6wr7fJYo
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Argyll
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by Argyll » Fri Jan 31, 2020 8:46 am

You learn something every day. I didn't know what a rivnut was.
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jaeger
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by jaeger » Fri Jan 31, 2020 9:04 am

Rivnuts are very useful, you can also get them in stainless steel ( a bit harder to install) if OP wants to keep all the materials the same.

UHM Also has his own video (I forgot about this)
https://www.youtube.com/watch?v=f7yIqKnLGPc
Bob225
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by Bob225 » Fri Jan 31, 2020 4:50 pm

If rivnuts are new, Cleco's will blow your mind http://clecofasteners.info/
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by Hitch » Fri Feb 07, 2020 3:22 pm

FLow drilling and tapping is a handy process for manufcturing...
https://www.youtube.com/watch?v=7YSVClLMp60
[size=100][color=green][b]Why isn't the number 11 pronounced onety one? [/b][/color][/size]
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jaeger
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by jaeger » Fri Feb 07, 2020 6:51 pm

Bob225 wrote:
Fri Jan 31, 2020 4:50 pm
If rivnuts are new, Cleco's will blow your mind http://clecofasteners.info/
I first saw Cleco being used on 'A plane is born' I used to enjoy that series of 'A XXX is born'
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by Bob225 » Sat Feb 08, 2020 11:20 am

jaeger wrote:
Fri Feb 07, 2020 6:51 pm
I used to enjoy that series of 'A XXX is born'
Wasn't that a Louis Theroux documentary :lol:




The cleco clamps are very good too
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jaeger
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How strong is steel reinforced epoxy (cold or chemical weld)?

Post by jaeger » Sat Feb 08, 2020 11:49 am

Last year at a car boot, I saw a box full of them but no insert tool, should have bought them but I just passed them by :cb
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