Reply With QuoteI've used it a bit. I usually use DevCon steel but I like JB Weld. I tend to avoid the quick set varieties, though.
Has anyone here used J-B Weld as a bedding material? Not asking for other suggestions. I just have never used J-B before for bedding and looking for feedback on how well it works.
I've used it a bit. I usually use DevCon steel but I like JB Weld. I tend to avoid the quick set varieties, though.
If only doing the recoil lug I will use it... but not for a complete bedding job.
Explain reasoning why please.Originally Posted by Whynot
JB weld as well. Most of what I do used to be called 'skim' bedding. Just enough to make sure of solid contact with the stock.
A 'full' bed job used to be one where material was removed from the stock to allow for more bedding material. The idea was that wood compressed or expanded/contracted over time. The extra bedding material provided a more solid connection between wood and action. I would not use JB Weld for that as it has limits in strength as the thickness increases. Great for compression, not so much for bending/tension.
In the event someone chose to use jb weld as a bedding material as you've described, what kind of release agent is best to keep the action from bonding to it?
9 out of 10 I have used JB. Release agent was clear shoe polish. All holes and voids in the action filled with clay. .005" shim stock under the rear of the action that was stripped.
I am sorry, I may have mispoke.
I've used Johnson's paste wax as a release agent for decades. Works as well with JB Weld as it does with fiberglass. I do apply two coats just to be on the safe side :)
More important is to fill all the holes and recesses with clay and tape edges well. I will also use clay as a 'dam' to keep the stuff where I want it.
I had just recently read an article comparing Devcon, J-B and Marine-Tex. In-which they compared tensile strength, compressibility, shrinkage, flowage, and shear.
When I used the J-B recently it did seem to flow more easily.
The pillars do the work. The bedding completes the lateral support. A lot of theory and overthinking out there on bedding that can’t be proven on target. JB Weld is quite adequate for action bedding. IMO
Guess I'm going to give it a try. Worst that can happen is I have to grind it all out and start over.
I bought a can of Brownells spray on release agent. It's never let me down, is easy to apply and the can lasts a long time.
I have used JB Weld, Devcon, and Marinetex. Of these my favorite is JB. I have not used Brownell's AcraGlas but have always wanted to. The reason JB is my fave is that I can buy it locally at any one of a number of places within 10 miles, it is easy to mix, has a long working time, and is plenty strong enough.
For release agent I use Johnson Paste Wax applied with a disposable acid brush. I fill voids with Play Dough, because it is super easy to remove after I am done. Regular modeling clay sticks like a son of a gun to wood and in screw holes and sucks to remove
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